Full Singles Results for Horn, David across ALL tours Chronologically earliest to latest
| Tour | Season | Date | City | Event | Round | Winner | Loser | Score |
| IRT | 2008-9 | 1/11/2009 | Canoga Park, CA | 2009 California Open | 128 | Horn, David | Shahin, Majeed | 5,3,5 |
| IRT | 2008-9 | 1/11/2009 | Canoga Park, CA | 2009 California Open | 64 | Horn, David | Filippini, Rafael | 4,5,(8),8 |
| IRT | 2008-9 | 1/11/2009 | Canoga Park, CA | 2009 California Open | 32 | Horn, David | Woodbury, Travis | (8),2,6,6 |
| IRT | 2008-9 | 1/11/2009 | Canoga Park, CA | 2009 California Open | 16 | Beltran, Alvaro | Horn, David | 6,11,3 |
| IRT | 2008-9 | 3/1/2009 | San Diego, CA | San Diego Open 2009 | 128 | Horn, David | Estrella, Jaime | 7,5,10 |
| IRT | 2008-9 | 3/1/2009 | San Diego, CA | San Diego Open 2009 | 64 | Moreno, Javier | Horn, David | 5,6,8 |
| IRT | 2009-10 | 1/10/2010 | Los Angeles, CA | Coast to Coast California Open | 64 | Horn, David | Mattson, Tanner | 2,4,7 |
| IRT | 2009-10 | 1/10/2010 | Los Angeles, CA | Coast to Coast California Open | 32 | Herrera, Juan | Horn, David | 5,(9),4,1 |
| IRT | 2009-10 | 1/17/2010 | Long Island, NY | 2010 NYC Pro Am | 64 | Horn, David | Palazzo, Joe | |
| IRT | 2009-10 | 1/17/2010 | Long Island, NY | 2010 NYC Pro Am | 32 | Landa, Alejandro | Horn, David | 6,4,6 |
| IRT | 2010-11 | 9/12/2010 | Kansas City, MO | 2010 Kansas City Pro/Am | 64 | Horn, David | Barshaw, Joel | 3,11,1 |
| IRT | 2010-11 | 9/12/2010 | Kansas City, MO | 2010 Kansas City Pro/Am | 32 | Herrera, Alejandro | Horn, David | (5),5,9,0 |
| IRT | 2010-11 | 10/3/2010 | San Diego, CA | 2010 Racquet House San Diego Pro-Am | 128 | Horn, David | Martell, Jaime | (3),10,8,7 |
| IRT | 2010-11 | 10/3/2010 | San Diego, CA | 2010 Racquet House San Diego Pro-Am | 64 | Horn, David | Oviedo, Carlos | (4),6,5,6 |
| IRT | 2010-11 | 10/3/2010 | San Diego, CA | 2010 Racquet House San Diego Pro-Am | 32 | Rojas, Jose | Horn, David | 7,10,10 |
| IRT | 2010-11 | 10/25/2010 | Minneapolis, MN | 15th Annual US Open | 128 | Horn, David | Mijares, Marco | 4,1,2 |
| IRT | 2010-11 | 10/25/2010 | Minneapolis, MN | 15th Annual US Open | 64 | Horn, David | Lejia, Missael | 9,8,8 |
| IRT | 2010-11 | 10/25/2010 | Minneapolis, MN | 15th Annual US Open | 32 | Rojas, Jose | Horn, David | 2,2,7 |
| IRT | 2010-11 | 1/9/2011 | Canoga Park, CA | 2011 Coast to Coast California Open | 64 | Horn, David | Shahin, Majeed | 1,5,7 |
| IRT | 2010-11 | 1/9/2011 | Canoga Park, CA | 2011 Coast to Coast California Open | 32 | Herrera, Anthony | Horn, David | 10,(3),3,(8),6 |
| IRT | 2010-11 | 1/16/2011 | Long Island, NY | 2011 NYC Pro-Am | 64 | Horn, David | Keogh, Tom | |
| IRT | 2010-11 | 1/16/2011 | Long Island, NY | 2011 NYC Pro-Am | 32 | Carson, Tony | Horn, David | 8,9,10 |
| IRT | 2010-11 | 2/27/2011 | San Diego, CA | 2011 San Diego Open | 64 | Gutierrez, Polo | Horn, David | |
| IRT | 2010-11 | 3/13/2011 | Tampa, FL | 2011 Florida Spring Break Pro Am | 64 | Horn, David | Crockett, Allan | 6,(10),(10),6,5 |
| IRT | 2010-11 | 3/13/2011 | Tampa, FL | 2011 Florida Spring Break Pro Am | 32 | Horn, David | Villegas, Ivan | 7,4,3 |
| IRT | 2010-11 | 3/13/2011 | Tampa, FL | 2011 Florida Spring Break Pro Am | 16 | Waselenchuk, Kane | Horn, David | 1,3,1 |
| IRT | 2010-11 | 5/29/2011 | Fullerton, CA | 2011 Ektelon Nationals | 64 | Horn, David | Szabo, Mark | (4),8,1,12 |
| IRT | 2010-11 | 5/29/2011 | Fullerton, CA | 2011 Ektelon Nationals | 32 | Horn, David | Herrera, Alejandro | fft |
| IRT | 2010-11 | 5/29/2011 | Fullerton, CA | 2011 Ektelon Nationals | 16 | Crowther, Chris | Horn, David | 7,5,9 |
| IRT | 2012-13 | 9/16/2012 | Kansas City, MO | 2012 Ghost of Georgetown IRT Pro-Am | 64 | Horn, David | Allen, Jansen | 10,(5),8,9 |
| IRT | 2012-13 | 9/16/2012 | Kansas City, MO | 2012 Ghost of Georgetown IRT Pro-Am | 32 | Horn, David | Camacho, Felipe | 7,(3),(6),3,7 |
| IRT | 2012-13 | 9/16/2012 | Kansas City, MO | 2012 Ghost of Georgetown IRT Pro-Am | 16 | Carson, Rocky | Horn, David | 1,10,0 |
| IRT | 2012-13 | 10/7/2012 | Minneapolis, MN | United Healthcare 17th US Open | 128 | Horn, David | Eagle, Doug | 7,5,10 |
| IRT | 2012-13 | 10/7/2012 | Minneapolis, MN | United Healthcare 17th US Open | 64 | Rojas, Marco | Horn, David | 3,0,(7),10 |
| IRT | 2012-13 | 11/3/2012 | Davison, MI | 2012 Red Swain Shootout | 64 | Horn, David | Reveron, Luis | 8,1,2 |
| IRT | 2012-13 | 11/3/2012 | Davison, MI | 2012 Red Swain Shootout | 32 | Pratt, Charlie | Horn, David | (4),3,8,8 |
| IRT | 2012-13 | 1/6/2013 | Reseda, CA | 2013 California Open | 64 | Horn, David | Orr, Mike | (5),7,(3),10,3 |
| IRT | 2012-13 | 1/6/2013 | Reseda, CA | 2013 California Open | 32 | Gutierrez, Polo | Horn, David | 0,10,1 |
| IRT | 2012-13 | 3/10/2013 | Tampa, FL | 2013 Florida Spring Break | 64 | Horn, David | Hernandez, Allen | 3,10,(8),4 |
| IRT | 2012-13 | 3/10/2013 | Tampa, FL | 2013 Florida Spring Break | 32 | Allen, Jansen | Horn, David | 4,9,(7),7 |
| IRT | 2012-13 | 4/28/2013 | Portland, OR | 2013 Tournament of Champions | 64 | Horn, David | Barshaw, Joel | 2,3,9 |
| IRT | 2012-13 | 4/28/2013 | Portland, OR | 2013 Tournament of Champions | 32 | Horn, David | Gale, Andrew | 4,3,4 |
| IRT | 2012-13 | 4/28/2013 | Portland, OR | 2013 Tournament of Champions | 16 | Waselenchuk, Kane | Horn, David | 1,1,0 |
| IRT | 2012-13 | 5/5/2013 | Stockton, CA | 2013 Stockton Pro-Am | 64 | Horn, David | Comer, Ralph | |
| IRT | 2012-13 | 5/5/2013 | Stockton, CA | 2013 Stockton Pro-Am | 32 | Horn, David | Rios, Fernando | 5,6,8 |
| IRT | 2012-13 | 5/5/2013 | Stockton, CA | 2013 Stockton Pro-Am | 16 | Carson, Rocky | Horn, David | 2,11,3 |
| IRT | 2012-13 | 5/19/2013 | Fullerton, CA | 2013 Ektelon Nationals | 64 | Horn, David | Martell, Jaime | 5,6,2 |
| IRT | 2012-13 | 5/19/2013 | Fullerton, CA | 2013 Ektelon Nationals | 32 | Horn, David | Ackermann, Alex | 1,7,8 |
| IRT | 2012-13 | 5/19/2013 | Fullerton, CA | 2013 Ektelon Nationals | 16 | Rojas, Jose | Horn, David | (7),2,2,9 |
| AMATEUR | 2013 | 5/19/2013 | Fullerton, CA | 2013 USAR 46th Annual Ektelon National Singles - Mens Open | 16 | Horn, David | Collins, Robert | 2,3 |
| AMATEUR | 2013 | 5/19/2013 | Fullerton, CA | 2013 USAR 46th Annual Ektelon National Singles - Mens Open | Q | Horn, David | Gale, Andrew | 5,0 |
| AMATEUR | 2013 | 5/19/2013 | Fullerton, CA | 2013 USAR 46th Annual Ektelon National Singles - Mens Open | S | Horn, David | Zelada, Mauricio | 11,2 |
| AMATEUR | 2013 | 5/19/2013 | Fullerton, CA | 2013 USAR 46th Annual Ektelon National Singles - Mens Open | F | Rojas, Marco | Horn, David | 5,6 |
| WRT | 2013 | 5/26/2013 | Hermosillo, SO, MEX | WRT 2013 Sonora Open | 32 | Horn, David | Dominguez, German Garcia | 4,7 |
| WRT | 2013 | 5/26/2013 | Hermosillo, SO, MEX | WRT 2013 Sonora Open | 16 | Horn, David | Morales, Rafael | 13,11 |
| WRT | 2013 | 5/26/2013 | Hermosillo, SO, MEX | WRT 2013 Sonora Open | Q | Gutierrez, Polo | Horn, David | 9,6 |
| WRT | 2013 | 6/9/2013 | Vina del Mar, CHI | WRT 2013 Chile Open | 32 | Horn, David | Medina, Rogelio | 3,5 |
| WRT | 2013 | 6/9/2013 | Vina del Mar, CHI | WRT 2013 Chile Open | 16 | Horn, David | Mejia, Gilberto | (11),4,8 |
| WRT | 2013 | 6/9/2013 | Vina del Mar, CHI | WRT 2013 Chile Open | Q | Gutierrez, Polo | Horn, David | 0,5 |
| IRT | 2013-14 | 9/15/2013 | Kansas City, MO | 2013 Kansas City Pro-Am / Ghost of Georgetown | 64 | Horn, David | Scott, John | 2,0,3 |
| IRT | 2013-14 | 9/15/2013 | Kansas City, MO | 2013 Kansas City Pro-Am / Ghost of Georgetown | 32 | Horn, David | Rogers, Bradly | 4,2,5 |
| IRT | 2013-14 | 9/15/2013 | Kansas City, MO | 2013 Kansas City Pro-Am / Ghost of Georgetown | 16 | Rojas, Jose | Horn, David | 9,5,7 |
| IRT | 2013-14 | 10/7/2013 | Minneapolis, MN | United Healthcare 18th US Open | 64 | Horn, David | Granberg, Aaron | 5,(1),(7),2,8 |
| IRT | 2013-14 | 10/7/2013 | Minneapolis, MN | United Healthcare 18th US Open | 32 | Landa, Alejandro | Horn, David | (10),5,10,2 |
| WRT | 2013 | 10/27/2013 | Matamoros, CA | 2013 Matamoros Open | 16 | Horn, David | Hungerford, Joshua | 10,10 |
| WRT | 2013 | 10/27/2013 | Matamoros, CA | 2013 Matamoros Open | Q | Horn, David | Gutierrez, Polo | 10,7 |
| WRT | 2013 | 10/27/2013 | Matamoros, CA | 2013 Matamoros Open | S | Horn, David | Mejia, Gilberto | (12),14,6 |
| WRT | 2013 | 10/27/2013 | Matamoros, CA | 2013 Matamoros Open | F | Herrera, Anthony | Horn, David | 14,8 |
| WRT | 2013 | 11/3/2013 | Monterrey, NL, MEX | 2013 WRT Monterrey Open | 32 | Horn, David | Ortiz, David | 5,2 |
| WRT | 2013 | 11/3/2013 | Monterrey, NL, MEX | 2013 WRT Monterrey Open | 16 | Horn, David | Rodriguez, Daniel | 12,7 |
| WRT | 2013 | 11/3/2013 | Monterrey, NL, MEX | 2013 WRT Monterrey Open | Q | Mejia, Gilberto | Horn, David | 10,13 |
| WRT | 2013 | 12/8/2013 | Fremont, CA | 2013 Fremont Open | 16 | Horn, David | Hungerford, Joshua | (12),10,9 |
| WRT | 2013 | 12/8/2013 | Fremont, CA | 2013 Fremont Open | Q | Mejia, Gilberto | Horn, David | 12,6 |
| WRT | 2013 | 12/14/2013 | Eastlake Chula Vista, CA | 2013 WRT SoCal Showdown | 32 | Horn, David | Uribe, Humberto | 12,9 |
| WRT | 2013 | 12/14/2013 | Eastlake Chula Vista, CA | 2013 WRT SoCal Showdown | 16 | Horn, David | Morales, Rafael | 7,(12),4 |
| WRT | 2013 | 12/14/2013 | Eastlake Chula Vista, CA | 2013 WRT SoCal Showdown | Q | Herrera, Anthony | Horn, David | (3),2,2 |
| IRT | 2013-14 | 1/6/2014 | Reseda, CA | 2014 Coast to Coast California Open | 32 | Horn, David | Arango, Alejandro | 4,10,6 |
| IRT | 2013-14 | 1/6/2014 | Reseda, CA | 2014 Coast to Coast California Open | 16 | Rojas, Jose | Horn, David | 3,1,8 |
| IRT | 2013-14 | 1/12/2014 | Syosset, NY | 2014 Cactus Salon NYC Pro-Am | 64 | Horn, David | Juteau, Sebastian | 1,2,5 |
| IRT | 2013-14 | 1/12/2014 | Syosset, NY | 2014 Cactus Salon NYC Pro-Am | 32 | Horn, David | Kopf, Andrew | 2,4,4 |
| IRT | 2013-14 | 1/12/2014 | Syosset, NY | 2014 Cactus Salon NYC Pro-Am | 16 | Horn, David | Rojas, Jose | 7,5,9 |
| IRT | 2013-14 | 1/12/2014 | Syosset, NY | 2014 Cactus Salon NYC Pro-Am | Q | Rojas, Marco | Horn, David | 4,4,(5),7 |
| WRT | 2014 | 3/3/2014 | Pleasanton, CA | 2014 WRT Pleasanton Open | 16 | Horn, David | Clarke, Andrew | 4,6 |
| WRT | 2014 | 3/3/2014 | Pleasanton, CA | 2014 WRT Pleasanton Open | Q | Bredenbeck, Jake | Horn, David | 12,13 |
| IRFmatch | 2014 | 4/16/2014 | Santa Cruz, BOL | 2014 Pan American Championships XXVII - Mens Open | RR | Franco, Sebastian | Horn, David | (12),4,9 |
| IRFmatch | 2014 | 4/16/2014 | Santa Cruz, BOL | 2014 Pan American Championships XXVII - Mens Open | RR | Horn, David | Rivera, Fernando Javier | 3,5 |
| IRFmatch | 2014 | 4/16/2014 | Santa Cruz, BOL | 2014 Pan American Championships XXVII - Mens Open | RR | Horn, David | Troncoso, Francisco | 9,4 |
| IRFmatch | 2014 | 4/16/2014 | Santa Cruz, BOL | 2014 Pan American Championships XXVII - Mens Open | 32 | Horn, David | Galicia, Edwin | 8,6 |
| IRFmatch | 2014 | 4/16/2014 | Santa Cruz, BOL | 2014 Pan American Championships XXVII - Mens Open | 16 | Horn, David | Moscoso, Conrrado | 14,9 |
| IRFmatch | 2014 | 4/16/2014 | Santa Cruz, BOL | 2014 Pan American Championships XXVII - Mens Open | Q | Gutierrez, Polo | Horn, David | 5,10 |
| IRT | 2013-14 | 5/4/2014 | Stockton, CA | 2014 Ektelon 209 Battle of the Ages | 32 | Horn, David | Kurzbard, Fernando | 6,7,(8),5 |
| IRT | 2013-14 | 5/4/2014 | Stockton, CA | 2014 Ektelon 209 Battle of the Ages | 16 | Rojas, Jose | Horn, David | 8,(9),(8),6,12 |
| WRT | 2014 | 5/18/2014 | Hermosillo, SO, MEX | 2014 Sonora Open | 16 | Horn, David | Alvarez, Jose Daniel | 2,(12),2 |
| WRT | 2014 | 5/18/2014 | Hermosillo, SO, MEX | 2014 Sonora Open | Q | Horn, David | Guevara, Gerardo | 13,9 |
| WRT | 2014 | 5/18/2014 | Hermosillo, SO, MEX | 2014 Sonora Open | S | Moreno, Javier | Horn, David | 3,5 |
| AMATEUR | 2014 | 5/25/2014 | Fullerton, CA | 2014 USA National Singles Championships - Mens Open | 16 | Horn, David | Callihan, Brandon | 4,7 |
| AMATEUR | 2014 | 5/25/2014 | Fullerton, CA | 2014 USA National Singles Championships - Mens Open | Q | Horn, David | Justice, Jonathan | 11,6 |
| AMATEUR | 2014 | 5/25/2014 | Fullerton, CA | 2014 USA National Singles Championships - Mens Open | S | Horn, David | Allen, Jansen | 14,6 |
| AMATEUR | 2014 | 5/25/2014 | Fullerton, CA | 2014 USA National Singles Championships - Mens Open | F | Bredenbeck, Jake | Horn, David | 14,12 |
| WRT | 2014 | 7/13/2014 | Santiago, RM CHI | 2014 WRT World Cup | 32 | Horn, David | Medina, Rogelio | 9,6 |
| WRT | 2014 | 7/13/2014 | Santiago, RM CHI | 2014 WRT World Cup | 16 | Ugalde, Jose Daniel | Horn, David | (9),8,8 |
| IRFmatch | 2014 | 8/5/2014 | Guadalajara, MEX | 2014 Pan American Sports Festival - Mens Open | RR | Horn, David | Camacho, Felipe | 4,10 |
| IRFmatch | 2014 | 8/5/2014 | Guadalajara, MEX | 2014 Pan American Sports Festival - Mens Open | RR | Horn, David | Wer, Christian | 2,4 |
| IRFmatch | 2014 | 8/5/2014 | Guadalajara, MEX | 2014 Pan American Sports Festival - Mens Open | RR | Horn, David | Delgado, Ricardo | 6,9 |
| IRFmatch | 2014 | 8/5/2014 | Guadalajara, MEX | 2014 Pan American Sports Festival - Mens Open | 32 | Horn, David | Troncoso, Francisco | 4,7 |
| IRFmatch | 2014 | 8/5/2014 | Guadalajara, MEX | 2014 Pan American Sports Festival - Mens Open | 16 | Horn, David | Acuna, Andres | 1,12 |
| IRFmatch | 2014 | 8/5/2014 | Guadalajara, MEX | 2014 Pan American Sports Festival - Mens Open | Q | Horn, David | Iwaasa, Coby | (8),14,6 |
| IRFmatch | 2014 | 8/5/2014 | Guadalajara, MEX | 2014 Pan American Sports Festival - Mens Open | S | De La Rosa, Daniel | Horn, David | 11,6 |
| WRT | 2014 | 8/24/2014 | San Luis Potosi, SL, MEX | 2014 WRT San Luis Open | 32 | Horn, David | Portillo, Eduardo | 4,10 |
| WRT | 2014 | 8/24/2014 | San Luis Potosi, SL, MEX | 2014 WRT San Luis Open | 16 | Horn, David | Kurzbard, Fernando | 5,1 |
| WRT | 2014 | 8/24/2014 | San Luis Potosi, SL, MEX | 2014 WRT San Luis Open | Q | Mejia, Gilberto | Horn, David | 14,8 |
| WRT | 2014 | 8/31/2014 | Ciudad Juarez, CH MEX | 2014 WRT Juarez Open | 32 | Horn, David | Lavely, Danny | 8,(9),1 |
| WRT | 2014 | 8/31/2014 | Ciudad Juarez, CH MEX | 2014 WRT Juarez Open | 16 | Horn, David | Rios, Fernando | (10),5,10 |
| WRT | 2014 | 8/31/2014 | Ciudad Juarez, CH MEX | 2014 WRT Juarez Open | Q | Horn, David | Mar, Javier | 10,(9),4 |
| WRT | 2014 | 8/31/2014 | Ciudad Juarez, CH MEX | 2014 WRT Juarez Open | S | Bredenbeck, Jake | Horn, David | (13),8,4 |
| WRT | 2014 | 9/7/2014 | Stockton, CA | 2014 WRT Port City Shootout | 16 | Horn, David | Rojas, Daniel (Mauro) | 5,8 |
| WRT | 2014 | 9/7/2014 | Stockton, CA | 2014 WRT Port City Shootout | Q | Horn, David | Franco, Sebastian | (11),12,10 |
| WRT | 2014 | 9/7/2014 | Stockton, CA | 2014 WRT Port City Shootout | S | Diaz, Jose | Horn, David | (13),9,4 |
| WRT | 2014 | 10/5/2014 | Lombad, IL | 2014 Fall Brawl featuring the WRT | 32 | Horn, David | Ortiz, Jorge | 0,6 |
| WRT | 2014 | 10/5/2014 | Lombad, IL | 2014 Fall Brawl featuring the WRT | 16 | Horn, David | Cullen, Kurtis | 7,6 |
| WRT | 2014 | 10/5/2014 | Lombad, IL | 2014 Fall Brawl featuring the WRT | Q | Horn, David | Lavely, Danny | 14,14, |
| WRT | 2014 | 10/5/2014 | Lombad, IL | 2014 Fall Brawl featuring the WRT | S | Iwaasa, Coby | Horn, David | (10),4,5 |
| IRT | 2014-15 | 10/12/2014 | Minneapolis, MN | United Healthcare 19th US Open | 64 | Horn, David | Miller, Maurice | (6),4,7,4 |
| IRT | 2014-15 | 10/12/2014 | Minneapolis, MN | United Healthcare 19th US Open | 32 | Horn, David | Fuhrmann, Thomas | 9,(9),5,7 |
| IRT | 2014-15 | 10/12/2014 | Minneapolis, MN | United Healthcare 19th US Open | 16 | Beltran, Alvaro | Horn, David | 9,3,10 |
| WRT | 2014 | 12/7/2014 | San Antonio, TX | 2014 WRT Alamo City Open | 32 | Horn, David | Crowe, Michael | 6,2 |
| WRT | 2014 | 12/7/2014 | San Antonio, TX | 2014 WRT Alamo City Open | 16 | Horn, David | Robison, Chase | (8),14,5 |
| WRT | 2014 | 12/7/2014 | San Antonio, TX | 2014 WRT Alamo City Open | Q | Martell, Jaime | Horn, David | 4,9 |
| WRT | 2015 | 1/18/2015 | Hermosillo, NM | 2015 WRT Sonora Open | 16 | Horn, David | Filippini, Rafael | 12,8 |
| WRT | 2015 | 1/18/2015 | Hermosillo, NM | 2015 WRT Sonora Open | Q | Horn, David | Mar, Javier | 10,7 |
| WRT | 2015 | 1/18/2015 | Hermosillo, NM | 2015 WRT Sonora Open | S | Gutierrez, Polo | Horn, David | 5,13 |
| WRT | 2015 | 1/25/2015 | San Diego, CA | 2015 WRT San Diego Open | 32 | Horn, David | Jeoung, Seoul | fft |
| WRT | 2015 | 1/25/2015 | San Diego, CA | 2015 WRT San Diego Open | 16 | Alonso, Jordy | Horn, David | (9),14,5 |
| WRT | 2015 | 2/22/2015 | Seattle, WA | WRT 2015 Mt Rainier Open | 32 | Horn, David | Thomas, Jorge Carlos | fft |
| WRT | 2015 | 2/22/2015 | Seattle, WA | WRT 2015 Mt Rainier Open | 16 | Horn, David | Manzuri, Shai | 8,14 |
| WRT | 2015 | 2/22/2015 | Seattle, WA | WRT 2015 Mt Rainier Open | Q | Horn, David | Birnel, Jake | 11,14 |
| WRT | 2015 | 2/22/2015 | Seattle, WA | WRT 2015 Mt Rainier Open | S | Cardona, Alejandro | Horn, David | 12,2 |
| WRT | 2015 | 3/1/2015 | Pleasanton, CA | WRT 2015 Pleasanton Open | 16 | Horn, David | Munoz, Felipe | 7,9 |
| WRT | 2015 | 3/1/2015 | Pleasanton, CA | WRT 2015 Pleasanton Open | Q | Horn, David | Mercado, Mario | (9),6,6 |
| WRT | 2015 | 3/1/2015 | Pleasanton, CA | WRT 2015 Pleasanton Open | S | Gutierrez, Polo | Horn, David | (14),14,6 |
| WRT | 2015 | 5/3/2015 | Minneapolis, MN | WRT 2015 Midwest Championships | 16 | Horn, David | Goth, John | (13),0,3 |
| WRT | 2015 | 5/3/2015 | Minneapolis, MN | WRT 2015 Midwest Championships | Q | Swain, Cliff | Horn, David | 13,7 |
| WRT | 2015 | 5/9/2015 | Cali, COL | WRT 2015 Cali Open | 16 | Franco, Gerardo | Horn, David | |
| AMATEUR | 2015 | 5/24/2015 | Highland Ranch, CO | 2015 USA Racquetball National Singles Championships - Mens Open | 16 | Horn, David | Hemphill, Robert | 5,7 |
| AMATEUR | 2015 | 5/24/2015 | Highland Ranch, CO | 2015 USA Racquetball National Singles Championships - Mens Open | Q | Horn, David | Herrera, Anthony | 3,(3),3 |
| AMATEUR | 2015 | 5/24/2015 | Highland Ranch, CO | 2015 USA Racquetball National Singles Championships - Mens Open | S | Rojas, Marco | Horn, David | 12,4 |
| AMATEUR | 2015 | 5/24/2015 | Highland Ranch, CO | 2015 USA Racquetball National Singles Championships - Mens Open | 3rd | Horn, David | Manilla, Adam | 7,(14),8 |
| IRT | 2014-15 | 5/31/2015 | Fresno, CA | 2015 Fresno Summer Kickoff | 32 | Horn, David | Rodriguez Jr., Miguel | 5,8,2 |
| IRT | 2014-15 | 5/31/2015 | Fresno, CA | 2015 Fresno Summer Kickoff | 16 | De La Rosa, Daniel | Horn, David | 2,3,(6),6 |
| WRT | 2015 | 6/21/2015 | Ciudad Juarez, CH MEX | WRT 2015 Juarez Open Cup | 32 | Horn, David | Montoya, Rodrigo | 14,8 |
| WRT | 2015 | 6/21/2015 | Ciudad Juarez, CH MEX | WRT 2015 Juarez Open Cup | 16 | Horn, David | Guevara, Gerardo | 9,7 |
| WRT | 2015 | 6/21/2015 | Ciudad Juarez, CH MEX | WRT 2015 Juarez Open Cup | Q | Landa, Alejandro | Horn, David | 5,(13),6 |
| WRT | 2015 | 8/16/2015 | San Luis Potosi, SL, MEX | 2015 WRT San Luis Open | 16 | Horn, David | Sandoval, Erick | (12),6,2 |
| WRT | 2015 | 8/16/2015 | San Luis Potosi, SL, MEX | 2015 WRT San Luis Open | Q | Horn, David | Ortega, David | (11),13,7 |
| WRT | 2015 | 8/16/2015 | San Luis Potosi, SL, MEX | 2015 WRT San Luis Open | S | Horn, David | Cardona, Alejandro | 14,(11),9 |
| WRT | 2015 | 8/16/2015 | San Luis Potosi, SL, MEX | 2015 WRT San Luis Open | F | Horn, David | Bredenbeck, Jake | 9,2 |
| WRT | 2015 | 9/13/2015 | Atlanta, GA | 2015 Grace Warrior WRT Atlanta Open | 32 | Horn, David | Miller, Marquis | 2,6 |
| WRT | 2015 | 9/13/2015 | Atlanta, GA | 2015 Grace Warrior WRT Atlanta Open | 16 | Horn, David | Walters, Brent | 9,9 |
| WRT | 2015 | 9/13/2015 | Atlanta, GA | 2015 Grace Warrior WRT Atlanta Open | Q | Horn, David | Franco, Sebastian | 6,2 |
| WRT | 2015 | 9/13/2015 | Atlanta, GA | 2015 Grace Warrior WRT Atlanta Open | S | Bredenbeck, Jake | Horn, David | 13,(8),8 |
| WRT | 2015 | 9/20/2015 | Sarasota, FL | 2015 WRT Suncoast Open | 16 | Horn, David | Fontana, Matthew | 3,4 |
| WRT | 2015 | 9/20/2015 | Sarasota, FL | 2015 WRT Suncoast Open | Q | Horn, David | Herrera, Anthony | 7,(11),5 |
| WRT | 2015 | 9/20/2015 | Sarasota, FL | 2015 WRT Suncoast Open | S | Horn, David | Bredenbeck, Jake | 12,(11),8 |
| WRT | 2015 | 9/20/2015 | Sarasota, FL | 2015 WRT Suncoast Open | F | Cardona, Alejandro | Horn, David | 12,3 |
| IRT | 2015-16 | 10/11/2015 | Minneapolis, MN | 20th United Healthcare US Open | 64 | Horn, David | Castillo, Cesar | 4,9,2 |
| IRT | 2015-16 | 10/11/2015 | Minneapolis, MN | 20th United Healthcare US Open | 32 | Horn, David | Majxner, Matthew | 2,4,0 |
| IRT | 2015-16 | 10/11/2015 | Minneapolis, MN | 20th United Healthcare US Open | 16 | Beltran, Alvaro | Horn, David | 7,(9),4,6 |
| WRT | 2015 | 11/1/2015 | Modesto, CA | 2015 WRT Modesto Open | 16 | Horn, David | Diaz, Ricardo | 8,0 |
| WRT | 2015 | 11/1/2015 | Modesto, CA | 2015 WRT Modesto Open | Q | Horn, David | Martell, Jaime | 11,(11),4 |
| WRT | 2015 | 11/1/2015 | Modesto, CA | 2015 WRT Modesto Open | S | Bredenbeck, Jake | Horn, David | (10),14,3 |
| WRT | 2015 | 11/8/2015 | San Diego, CA | 2015 WRT San Diego Open #2 | 16 | Horn, David | Leiva, Guillermo | 6,12 |
| WRT | 2015 | 11/8/2015 | San Diego, CA | 2015 WRT San Diego Open #2 | Q | Horn, David | Munoz, Felipe | 6,10 |
| WRT | 2015 | 11/8/2015 | San Diego, CA | 2015 WRT San Diego Open #2 | S | Bredenbeck, Jake | Horn, David | (10),14,8 |
| WRT | 2015 | 11/22/2015 | Bremerton, WA | 2015 WRT Kitsap Splat | 16 | Horn, David | Vega, Rocco | 4,11 |
| WRT | 2015 | 11/22/2015 | Bremerton, WA | 2015 WRT Kitsap Splat | Q | Martell, Jaime | Horn, David | 1,9 |
| WRT | 2015 | 12/6/2015 | Monterrey, NL, MEX | 2015 WRT Monterrey Open | 16 | Martinez, Edson | Horn, David | 14,14 |
| WRT | 2015 | 12/13/2015 | San Antonio, TX | 2015 WRT Alamo City Open | 16 | Horn, David | Smith Jr, Ross | 4,9 |
| WRT | 2015 | 12/13/2015 | San Antonio, TX | 2015 WRT Alamo City Open | Q | Horn, David | Herrera, Anthony | 13,6 |
| WRT | 2015 | 12/13/2015 | San Antonio, TX | 2015 WRT Alamo City Open | S | Landa, Alejandro | Horn, David | (14),11,10 |
| AMATEUR | 2016 | 2/14/2016 | Tempe, AZ | 2016 USA Racquetball National Doubles Championships (Singles US Team Qualifying Event) - Mens Open | 16 | Horn, David | Herrera, Anthony | (14),5,8 |
| AMATEUR | 2016 | 2/14/2016 | Tempe, AZ | 2016 USA Racquetball National Doubles Championships (Singles US Team Qualifying Event) - Mens Open | Q | Rojas, Jose | Horn, David | 8,(8),6 |
| WRT | 2016 | 2/21/2016 | Seattle, WA | 2016 WRT Mt. Rainier Open | 16 | Horn, David | Bunn, Wally | 3,9 |
| WRT | 2016 | 2/21/2016 | Seattle, WA | 2016 WRT Mt. Rainier Open | Q | Horn, David | Bredenbeck, Sam | 2,4 |
| WRT | 2016 | 2/21/2016 | Seattle, WA | 2016 WRT Mt. Rainier Open | S | Bredenbeck, Jake | Horn, David | (5),9,3 |
| IRFmatch | 2016 | 3/26/2016 | San Luis Potosi, MEX | 2016 Pan American Championships XXIX - Mens Open | RR | Horn, David | Capandegui, Franco | 4,3 |
| IRFmatch | 2016 | 3/26/2016 | San Luis Potosi, MEX | 2016 Pan American Championships XXIX - Mens Open | RR | Horn, David | Salgado, Rodrigo | 5,5 |
| IRFmatch | 2016 | 3/26/2016 | San Luis Potosi, MEX | 2016 Pan American Championships XXIX - Mens Open | RR | Horn, David | Pirie, Alexander | 8,8 |
| IRFmatch | 2016 | 3/26/2016 | San Luis Potosi, MEX | 2016 Pan American Championships XXIX - Mens Open | 16 | Horn, David | Cueva, Juan Francisco | 5,2 |
| IRFmatch | 2016 | 3/26/2016 | San Luis Potosi, MEX | 2016 Pan American Championships XXIX - Mens Open | Q | Rios, Fernando | Horn, David | 11,12 |
| WRT | 2016 | 5/15/2016 | Minneapolis, MN | 2016 WRT Midwest Championships | 16 | Horn, David | Meinerz, Lee | 9,9 |
| WRT | 2016 | 5/15/2016 | Minneapolis, MN | 2016 WRT Midwest Championships | Q | Horn, David | Filippini, Rafael | 7,13 |
| WRT | 2016 | 5/15/2016 | Minneapolis, MN | 2016 WRT Midwest Championships | S | Horn, David | Bredenbeck, Jake | 8,7 |
| WRT | 2016 | 5/15/2016 | Minneapolis, MN | 2016 WRT Midwest Championships | F | Cardona, Alejandro | Horn, David | (8),10,8 |
| IRT | 2015-16 | 5/21/2016 | Reseda, CA | 2016 IRT Coast to Coast Open | 64 | Horn, David | Miramontes, Nicolai | 5,9,9 |
| IRT | 2015-16 | 5/21/2016 | Reseda, CA | 2016 IRT Coast to Coast Open | 32 | Horn, David | Pratt, Charlie | 9,5,(6),9 |
| IRT | 2015-16 | 5/21/2016 | Reseda, CA | 2016 IRT Coast to Coast Open | 16 | De La Rosa, Daniel | Horn, David | 5,6,1 |
| IRT | 2016-17 | 9/11/2016 | Overland Park, KS | 2016 17th Ghost of Georgetown IRT Pro-Am | 32 | Horn, David | McClellan, Scott | 2,4,2 |
| IRT | 2016-17 | 9/11/2016 | Overland Park, KS | 2016 17th Ghost of Georgetown IRT Pro-Am | 16 | De La Rosa, Daniel | Horn, David | 9,(6),0,10 |
| WRT | 2016 | 9/18/2016 | Atlanta, GA | 2016 WRT Atlanta Open | 16 | Horn, David | Cunningham, Austin | 8,9 |
| WRT | 2016 | 9/18/2016 | Atlanta, GA | 2016 WRT Atlanta Open | Q | Horn, David | Miramontes, Nicolai | (1),14,2 |
| WRT | 2016 | 9/18/2016 | Atlanta, GA | 2016 WRT Atlanta Open | S | Gutierrez, Polo | Horn, David | 14,10 |
| IRT | 2016-17 | 10/9/2016 | Minneapolis, MN | 21st United Healthcare US Open | 64 | Horn, David | Prigo, Tim | 0,7,0 |
| IRT | 2016-17 | 10/9/2016 | Minneapolis, MN | 21st United Healthcare US Open | 32 | Horn, David | Zelada, Mauricio | 7,2,(7),(11),0 |
| IRT | 2016-17 | 10/9/2016 | Minneapolis, MN | 21st United Healthcare US Open | 16 | Beltran, Alvaro | Horn, David | 2,(1),10,(8),7 |
| WRT | 2016 | 10/30/2016 | Pleasanton, CA | 2016 Pleasanton Open | 32 | Horn, David | Garcia, Leonardo | 1,1 |
| WRT | 2016 | 10/30/2016 | Pleasanton, CA | 2016 Pleasanton Open | 16 | Horn, David | Camacho, Vicente | 1,8 |
| WRT | 2016 | 10/30/2016 | Pleasanton, CA | 2016 Pleasanton Open | Q | Horn, David | Miramontes, Nicolai | 5,8 |
| WRT | 2016 | 10/30/2016 | Pleasanton, CA | 2016 Pleasanton Open | S | Cardona, Alejandro | Horn, David | 7,14 |
| WRT | 2016 | 11/6/2016 | Murray, UT | 2016 WRT Rocky Mountain Open | 32 | Horn, David | Ottenschot, Mark | 3,4 |
| WRT | 2016 | 11/6/2016 | Murray, UT | 2016 WRT Rocky Mountain Open | 16 | Horn, David | Gale, Andrew | 5,4 |
| WRT | 2016 | 11/6/2016 | Murray, UT | 2016 WRT Rocky Mountain Open | Q | Horn, David | Montoya, Rodrigo | (8),8,8 |
| WRT | 2016 | 11/6/2016 | Murray, UT | 2016 WRT Rocky Mountain Open | S | Horn, David | Parrilla, Andree | 14,(9),10 |
| WRT | 2016 | 11/6/2016 | Murray, UT | 2016 WRT Rocky Mountain Open | F | Martell, Jaime | Horn, David | (12),12,6 |
| IRT | 2016-17 | 11/19/2016 | St. Louis, MO | 2016 MO St. Louis Pro Racquetball Winter Rollout Tournament | 16 | De La Rosa, Daniel | Horn, David | 9,5,(9),7 |
| WRT | 2016 | 12/4/2016 | San Antonio, TX | 2016 WRT Alamo City Open | 16 | Horn, David | Benson, Justus | 14,(14),10 |
| WRT | 2016 | 12/4/2016 | San Antonio, TX | 2016 WRT Alamo City Open | Q | Montoya, Rodrigo | Horn, David | 10,6 |
| IRT | 2016-17 | 1/8/2017 | Reseda, CA | 2017 Coast to Coast California Open | 32 | Horn, David | Elkins, Brett | 4,6,0 |
| IRT | 2016-17 | 1/8/2017 | Reseda, CA | 2017 Coast to Coast California Open | 16 | Rojas, Jose | Horn, David | 4,9,(12),5 |
| WRT | 2017 | 1/15/2017 | Austin, TX | 2017 Longhorn Open | 16 | Horn, David | Walters, Brent | 7,14 |
| WRT | 2017 | 1/15/2017 | Austin, TX | 2017 Longhorn Open | Q | Horn, David | Martinez, Edson | (11),4,5 |
| WRT | 2017 | 1/15/2017 | Austin, TX | 2017 Longhorn Open | S | Mar, Javier | Horn, David | 13,6 |
| IRT | 2016-17 | 1/22/2017 | Sioux Falls, SD | 2017 Lewis 39th Annual Pro-Am | 32 | Horn, David | Prentice, Tanner | 5,1,2 |
| IRT | 2016-17 | 1/22/2017 | Sioux Falls, SD | 2017 Lewis 39th Annual Pro-Am | 16 | Allen, Jansen | Horn, David | 8,(7),6,3 |
| WRT | 2017 | 1/29/2017 | Concord, CA | 2017 WRT West Coast Championship | 32 | Horn, David | Perez, Jose | 1,8 |
| WRT | 2017 | 1/29/2017 | Concord, CA | 2017 WRT West Coast Championship | 16 | Horn, David | Rojas, Daniel (Mauro) | 3,5 |
| WRT | 2017 | 1/29/2017 | Concord, CA | 2017 WRT West Coast Championship | Q | Landa, Alejandro | Horn, David | (12),12,3 |
| AMATEUR | 2017 | 2/12/2017 | Tempe, AZ | 2017 USA Racquetball National Doubles Championships (Singles US Team Qualifying Event) - Mens Open | Q | Horn, David | Carter, Thomas | 8,(7),5 |
| AMATEUR | 2017 | 2/12/2017 | Tempe, AZ | 2017 USA Racquetball National Doubles Championships (Singles US Team Qualifying Event) - Mens Open | S | Horn, David | Collins, Robert | 5,7 |
| AMATEUR | 2017 | 2/12/2017 | Tempe, AZ | 2017 USA Racquetball National Doubles Championships (Singles US Team Qualifying Event) - Mens Open | F | Carson, Rocky | Horn, David | 1,7 |
| WRT | 2017 | 2/19/2017 | Seattle, WA | 2017 WRT Mount Rainier Open | 32 | Horn, David | McGlothin, Jeremy | 3,2 |
| WRT | 2017 | 2/19/2017 | Seattle, WA | 2017 WRT Mount Rainier Open | 16 | Horn, David | Camacho, Felipe | 12,(6),9 |
| WRT | 2017 | 2/19/2017 | Seattle, WA | 2017 WRT Mount Rainier Open | Q | Horn, David | Alonso, Jordy | (9),9,4 |
| WRT | 2017 | 2/19/2017 | Seattle, WA | 2017 WRT Mount Rainier Open | S | Horn, David | Gutierrez, Polo | 12,10 |
| WRT | 2017 | 2/19/2017 | Seattle, WA | 2017 WRT Mount Rainier Open | F | Montoya, Rodrigo | Horn, David | 5,5 |
| WRT | 2017 | 3/12/2017 | Fridley, MN | 2017 WRT Midwest Championships | 16 | Horn, David | Kurzbard, Fernando | 3,4 |
| WRT | 2017 | 3/12/2017 | Fridley, MN | 2017 WRT Midwest Championships | Q | Horn, David | Bredenbeck, Jake | 8,13 |
| WRT | 2017 | 3/12/2017 | Fridley, MN | 2017 WRT Midwest Championships | S | Horn, David | Martell, Jaime | 9,9 |
| WRT | 2017 | 3/12/2017 | Fridley, MN | 2017 WRT Midwest Championships | F | Horn, David | Mercado, Mario | 14,14 |
| IRT | 2016-17 | 3/19/2017 | Lombard, IL | 2017 IRT Shamrock Shootout | 64 | Horn, David | Forgione, Rocco | 1,2,1 |
| IRT | 2016-17 | 3/19/2017 | Lombard, IL | 2017 IRT Shamrock Shootout | 32 | Horn, David | Rivera, Fernando Javier | 3,5,4 |
| IRT | 2016-17 | 3/19/2017 | Lombard, IL | 2017 IRT Shamrock Shootout | 16 | Horn, David | Allen, Jansen | 2,6,1 |
| IRT | 2016-17 | 3/19/2017 | Lombard, IL | 2017 IRT Shamrock Shootout | Q | Beltran, Alvaro | Horn, David | 4,4,11 |
| IRFmatch | 2017 | 4/15/2017 | San Jose, CRC | 2017 Pan American Championships XXX - Mens Open | RR | Horn, David | Troncoso, Francisco | 6,13 |
| IRFmatch | 2017 | 4/15/2017 | San Jose, CRC | 2017 Pan American Championships XXX - Mens Open | RR | Horn, David | Gomez, Francisco | 7,(14),4 |
| IRFmatch | 2017 | 4/15/2017 | San Jose, CRC | 2017 Pan American Championships XXX - Mens Open | 16 | Horn, David | Cubillos, Set | 7,13 |
| IRFmatch | 2017 | 4/15/2017 | San Jose, CRC | 2017 Pan American Championships XXX - Mens Open | Q | Acuna, Andres | Horn, David | 10,12 |
| WRT | 2017 | 5/7/2017 | Lilburn, GA | 2017 WRT Grace Warrior Ministries Georgia Open | 16 | Horn, David | Karmelin, Shane | 6,13 |
| WRT | 2017 | 5/7/2017 | Lilburn, GA | 2017 WRT Grace Warrior Ministries Georgia Open | Q | Bredenbeck, Jake | Horn, David | (10),12,7 |
| AMATEUR | 2017 | 5/28/2017 | Tempe, AZ | 2017 USA Racquetball National Singles Championships - Mens Team | 16 | Horn, David | Cannady, Cameron | 2,1 |
| AMATEUR | 2017 | 5/28/2017 | Tempe, AZ | 2017 USA Racquetball National Singles Championships - Mens Team | Q | Horn, David | Stark, Jeff | (12),5,3 |
| AMATEUR | 2017 | 5/28/2017 | Tempe, AZ | 2017 USA Racquetball National Singles Championships - Mens Team | S | Horn, David | Rojas, Jose | (9),12,6 |
| AMATEUR | 2017 | 5/28/2017 | Tempe, AZ | 2017 USA Racquetball National Singles Championships - Mens Team | F | Carson, Rocky | Horn, David | 8,7 |
| WRT | 2017 | 6/10/2017 | San Luis Potosi, SL, MEX | 2017 Torneo Internacional Canels WRT | 16 | Horn, David | Fernandez, Sebastian | 11,9 |
| WRT | 2017 | 6/10/2017 | San Luis Potosi, SL, MEX | 2017 Torneo Internacional Canels WRT | Q | Landa, Alejandro | Horn, David | 12,6 |
| WRT | 2017 | 6/17/2017 | Chihuahua, CH, MEX | Paola Longoria Challenge 2017 | 32 | Horn, David | Natera, Humberto | 7,12 |
| WRT | 2017 | 6/17/2017 | Chihuahua, CH, MEX | Paola Longoria Challenge 2017 | 16 | Sandoval, Erick | Horn, David | (8),9,1 |
| WRT | 2017 | 8/6/2017 | Denver, CO | WRT Life Time Denver Open 2017 | 16 | Manzuri, Shai | Horn, David | 5,11 |
| IRT | 2017-18 | 9/10/2017 | Canoga Park, CA | 2017 IRT Phase IV Scientific Health and Performance Pro-Am | 32 | Horn, David | Avila, Luis | 9,9,1 |
| IRT | 2017-18 | 9/10/2017 | Canoga Park, CA | 2017 IRT Phase IV Scientific Health and Performance Pro-Am | 16 | Horn, David | Mercado, Mario | 11,(9),5,(6),2 |
| IRT | 2017-18 | 9/10/2017 | Canoga Park, CA | 2017 IRT Phase IV Scientific Health and Performance Pro-Am | Q | Carson, Rocky | Horn, David | 4,9,9 |
| WRT | 2017 | 9/16/2017 | Atlanta, GA | 2017 Grace Warrior Ministries WRT Atlanta Open | 16 | Horn, David | Subieta, Roger | 0,0 |
| WRT | 2017 | 9/16/2017 | Atlanta, GA | 2017 Grace Warrior Ministries WRT Atlanta Open | Q | Horn, David | Franco, Sebastian | 7,(8),9 |
| WRT | 2017 | 9/16/2017 | Atlanta, GA | 2017 Grace Warrior Ministries WRT Atlanta Open | S | Horn, David | Bredenbeck, Jake | 11,14 |
| WRT | 2017 | 9/16/2017 | Atlanta, GA | 2017 Grace Warrior Ministries WRT Atlanta Open | F | Horn, David | Parrilla, Andree | 10,13 |
| IRT | 2017-18 | 10/8/2017 | Minneapolis, MN | 2017 22nd UnitedHealthcare US OPEN Racquetball Championships | 32 | Moscoso, Conrrado | Horn, David | 7,10,8 |
| WRT | 2017 | 10/15/2017 | Mexicali, BC, MEX | WRT Casino Racquetball Open 2017 | 16 | Horn, David | Rodriguez, Rodrigo | 8,3 |
| WRT | 2017 | 10/15/2017 | Mexicali, BC, MEX | WRT Casino Racquetball Open 2017 | Q | Landa, Alejandro | Horn, David | 12,12 |
| WRT | 2017 | 10/28/2017 | Salt Lake City, UT | 2017 WRT Rocky Mountain Open | 16 | Horn, David | Tyler, Garrett | 4,3 |
| WRT | 2017 | 10/28/2017 | Salt Lake City, UT | 2017 WRT Rocky Mountain Open | Q | Horn, David | Camacho, Felipe | 7,8 |
| WRT | 2017 | 10/28/2017 | Salt Lake City, UT | 2017 WRT Rocky Mountain Open | S | Horn, David | Franco, Sebastian | 7,12 |
| WRT | 2017 | 10/28/2017 | Salt Lake City, UT | 2017 WRT Rocky Mountain Open | F | Horn, David | Bredenbeck, Jake | (13),5,6 |
| IRT | 2017-18 | 11/18/2017 | St. Louis, MO | 2017 St. Louis IRT Pro Racquetball Winter Rollout presented by Pro Kennex | 16 | Horn, David | Bredenbeck, Jake | 5,9,4 |
| IRT | 2017-18 | 11/18/2017 | St. Louis, MO | 2017 St. Louis IRT Pro Racquetball Winter Rollout presented by Pro Kennex | Q | De La Rosa, Daniel | Horn, David | 8,(10),10,(7),1 |
| WRT | 2017 | 12/3/2017 | San Antonio, TX | 2017 WRT Alamo City Open | 32 | Horn, David | Pavloski, Nicholas | 1,3 |
| WRT | 2017 | 12/3/2017 | San Antonio, TX | 2017 WRT Alamo City Open | 16 | Horn, David | Loreto, Juan | 7,7 |
| WRT | 2017 | 12/3/2017 | San Antonio, TX | 2017 WRT Alamo City Open | Q | Horn, David | Martell, Jaime | 10,2 |
| WRT | 2017 | 12/3/2017 | San Antonio, TX | 2017 WRT Alamo City Open | S | Horn, David | Ochoa, Ernesto | (14),14,3 |
| WRT | 2017 | 12/3/2017 | San Antonio, TX | 2017 WRT Alamo City Open | F | Horn, David | Cardona, Alejandro | (12),8,9 |
| IRT | 2017-18 | 1/7/2018 | Canoga Park, CA | 2018 LA Open presented by Coast to Coast | 32 | Horn, David | Torres, Israel | 2,4 |
| IRT | 2017-18 | 1/7/2018 | Canoga Park, CA | 2018 LA Open presented by Coast to Coast | 16 | Mercado, Mario | Horn, David | 13,5 |
| WRT | 2018 | 1/14/2018 | Austin, TX | 2018 Longhorn Open | 32 | Horn, David | Rhodes, John Lee | 2,4 |
| WRT | 2018 | 1/14/2018 | Austin, TX | 2018 Longhorn Open | 16 | Horn, David | Camacho, Vicente | 3,4 |
| WRT | 2018 | 1/14/2018 | Austin, TX | 2018 Longhorn Open | Q | Horn, David | Longoria, Christian | 13,(11),9 |
| WRT | 2018 | 1/14/2018 | Austin, TX | 2018 Longhorn Open | S | Bredenbeck, Jake | Horn, David | 14,12 |
| IRT | 2017-18 | 1/21/2018 | Sioux Falls, SD | 2018 40th Annual Lewis Drug Pro-Am IRT Tier 1 | 32 | Horn, David | Cardona, Alejandro | 11,(8),1 |
| IRT | 2017-18 | 1/21/2018 | Sioux Falls, SD | 2018 40th Annual Lewis Drug Pro-Am IRT Tier 1 | 16 | Horn, David | Mercado, Mario | (8),3,9 |
| IRT | 2017-18 | 1/21/2018 | Sioux Falls, SD | 2018 40th Annual Lewis Drug Pro-Am IRT Tier 1 | Q | De La Rosa, Daniel | Horn, David | 12,12 |
| AMATEUR | 2018 | 2/11/2018 | Tempe, AZ | 2018 National Doubles Championships (Singles US Team Qualifying Event) - Mens Open | Q | Horn, David | Collins, Robert | 7,3 |
| AMATEUR | 2018 | 2/11/2018 | Tempe, AZ | 2018 National Doubles Championships (Singles US Team Qualifying Event) - Mens Open | S | Pratt, Charlie | Horn, David | 6,(12),6 |
| IRT | 2017-18 | 3/18/2018 | Lombard, IL | 2018 Shamrock Shootout presented by KWM Gutterman | 32 | Horn, David | Mora, Fabrizio | 6,5 |
| IRT | 2017-18 | 3/18/2018 | Lombard, IL | 2018 Shamrock Shootout presented by KWM Gutterman | 16 | Horn, David | Mercado, Mario | 2,14 |
| IRT | 2017-18 | 3/18/2018 | Lombard, IL | 2018 Shamrock Shootout presented by KWM Gutterman | Q | Horn, David | Beltran, Alvaro | 3,(6),10 |
| IRT | 2017-18 | 3/18/2018 | Lombard, IL | 2018 Shamrock Shootout presented by KWM Gutterman | S | Horn, David | De La Rosa, Daniel | 9,8 |
| IRT | 2017-18 | 3/18/2018 | Lombard, IL | 2018 Shamrock Shootout presented by KWM Gutterman | F | Parrilla, Andree | Horn, David | 1,9 |
| IRFmatch | 2018 | 3/31/2018 | Temuco, CHI | 2018 Pan American Championships XXXI - Mens Open | RR | Horn, David | Chavez, Christian | 7,10 |
| IRFmatch | 2018 | 3/31/2018 | Temuco, CHI | 2018 Pan American Championships XXXI - Mens Open | RR | Horn, David | Chacon, Enier | 2,6 |
| IRFmatch | 2018 | 3/31/2018 | Temuco, CHI | 2018 Pan American Championships XXXI - Mens Open | RR | Horn, David | Galicia, Edwin | 6,(11),1 |
| IRFmatch | 2018 | 3/31/2018 | Temuco, CHI | 2018 Pan American Championships XXXI - Mens Open | 16 | Horn, David | Cubillos, Set | 9,6 |
| IRFmatch | 2018 | 3/31/2018 | Temuco, CHI | 2018 Pan American Championships XXXI - Mens Open | Q | Horn, David | Castro, Pedro | 7,2 |
| IRFmatch | 2018 | 3/31/2018 | Temuco, CHI | 2018 Pan American Championships XXXI - Mens Open | S | Horn, David | Parrilla, Andree | 13,14 |
| IRFmatch | 2018 | 3/31/2018 | Temuco, CHI | 2018 Pan American Championships XXXI - Mens Open | F | Keller, Carlos | Horn, David | 12,(5),7 |
| IRT | 2017-18 | 4/8/2018 | Cincinnati, OH | 2018 IRT T1 Mercedes Benz of Ft. Mitchell Raising Some Racquet for Kids | 32 | Horn, David | Zelada, Mauricio | 13,11 |
| IRT | 2017-18 | 4/8/2018 | Cincinnati, OH | 2018 IRT T1 Mercedes Benz of Ft. Mitchell Raising Some Racquet for Kids | 16 | Franco, Sebastian | Horn, David | 14,12 |
| IRT | 2017-18 | 4/29/2018 | Sarasota, FL | 2018 Florida IRT Regional Championships | 64 | Horn, David | Fitzgerald, Brady | 1,2 |
| IRT | 2017-18 | 4/29/2018 | Sarasota, FL | 2018 Florida IRT Regional Championships | 32 | Horn, David | Rodriguez Jr., Miguel | 4,6 |
| IRT | 2017-18 | 4/29/2018 | Sarasota, FL | 2018 Florida IRT Regional Championships | 16 | Horn, David | Murray, Samuel | (9),4,5 |
| IRT | 2017-18 | 4/29/2018 | Sarasota, FL | 2018 Florida IRT Regional Championships | Q | Horn, David | Pratt, Charlie | 8,13 |
| IRT | 2017-18 | 4/29/2018 | Sarasota, FL | 2018 Florida IRT Regional Championships | S | Waselenchuk, Kane | Horn, David | 11,11 |
| WRT | 2018 | 5/20/2018 | Lilburn, GA | 2018 WRT Georgia Open | Q | Horn, David | Avila, Luis | 10,9 |
| WRT | 2018 | 5/20/2018 | Lilburn, GA | 2018 WRT Georgia Open | S | Martell, Jaime | Horn, David | (13),8,9 |
| AMATEUR | 2018 | 5/27/2018 | Pleasanton, CA | 2018 USA Racquetball National Singles Championships - Mens Open | 16 | Horn, David | Diaz, Ricardo | 3,3 |
| AMATEUR | 2018 | 5/27/2018 | Pleasanton, CA | 2018 USA Racquetball National Singles Championships - Mens Open | Q | Horn, David | Reid, Dylan | 12,7 |
| AMATEUR | 2018 | 5/27/2018 | Pleasanton, CA | 2018 USA Racquetball National Singles Championships - Mens Open | S | Horn, David | Diaz, Jose | 12,(9),10 |
| AMATEUR | 2018 | 5/27/2018 | Pleasanton, CA | 2018 USA Racquetball National Singles Championships - Mens Open | F | Horn, David | Rojas, Jose | 13,11 |
| IRFmatch | 2018 | 8/18/2018 | San Jose, CRC | 2018 World Championships XIX - Mens Open | RR | Horn, David | Perez, Luis | 5,7 |
| IRFmatch | 2018 | 8/18/2018 | San Jose, CRC | 2018 World Championships XIX - Mens Open | RR | Horn, David | Kim, Moon Gyun | 7,4 |
| IRFmatch | 2018 | 8/18/2018 | San Jose, CRC | 2018 World Championships XIX - Mens Open | 32 | Horn, David | Murphy, Mark | 3,1 |
| IRFmatch | 2018 | 8/18/2018 | San Jose, CRC | 2018 World Championships XIX - Mens Open | 16 | Horn, David | Galicia, Edwin | 14,3 |
| IRFmatch | 2018 | 8/18/2018 | San Jose, CRC | 2018 World Championships XIX - Mens Open | Q | Horn, David | Mercado, Mario | 12,6 |
| IRFmatch | 2018 | 8/18/2018 | San Jose, CRC | 2018 World Championships XIX - Mens Open | S | Montoya, Rodrigo | Horn, David | 9,8 |
| IRT | 2018-19 | 9/16/2018 | Laurel, MD | 2018 MWRA Season Opener IRT Pro/Am | 16 | Parrilla, Andree | Horn, David | 11,9 |
| IRT | 2018-19 | 10/7/2018 | Minneapolis, MN | 2018 23rd UnitedHealthcare US Open | 32 | Acuna, Andres | Horn, David | (13),6,6 |
| WRT | 2018 | 10/21/2018 | Calgary, AB, CAN | 2018 WRT Canadian Open | 16 | Horn, David | Prentice, Tanner | 7,9 |
| WRT | 2018 | 10/21/2018 | Calgary, AB, CAN | 2018 WRT Canadian Open | Q | Horn, David | Avila, Luis | 5,12 |
| WRT | 2018 | 10/21/2018 | Calgary, AB, CAN | 2018 WRT Canadian Open | S | Parrilla, Andree | Horn, David | (11),11,3 |
| IRT | 2018-19 | 12/2/2018 | Portland, OR | 2018 IRT Pelham Memorial Tournament of Champions | 32 | Horn, David | Landeryou, Tim | 0,5 |
| IRT | 2018-19 | 12/2/2018 | Portland, OR | 2018 IRT Pelham Memorial Tournament of Champions | 16 | Horn, David | Mercado, Mario | 12,4 |
| IRT | 2018-19 | 12/2/2018 | Portland, OR | 2018 IRT Pelham Memorial Tournament of Champions | Q | Pratt, Charlie | Horn, David | 10,14 |
| IRT | 2018-19 | 1/6/2019 | Canoga Park, CA | 2019 IRT California Open | 32 | Portillo, Eduardo | Horn, David | 11,13 |
| AMATEUR | 2019 | 2/10/2019 | Tempe, AZ | 2019 USA Racquetball National Doubles Championships (Singles US Team Qualifying Event) - Mens Open | 16 | Horn, David | Patterson, Ryan | 1,2 |
| AMATEUR | 2019 | 2/10/2019 | Tempe, AZ | 2019 USA Racquetball National Doubles Championships (Singles US Team Qualifying Event) - Mens Open | Q | Horn, David | Bredenbeck, Jake | 9,12 |
| AMATEUR | 2019 | 2/10/2019 | Tempe, AZ | 2019 USA Racquetball National Doubles Championships (Singles US Team Qualifying Event) - Mens Open | S | Pratt, Charlie | Horn, David | 5,10 |
| AMATEUR | 2019 | 2/10/2019 | Tempe, AZ | 2019 USA Racquetball National Doubles Championships (Singles US Team Qualifying Event) - Mens Open | 3rd | Diaz, Jose | Horn, David | dbl fft |
| IRT | 2018-19 | 3/17/2019 | Lombard, IL | 2019 34th Annual Shamrock Shootout | 64 | Horn, David | Garay, Eduardo | 10,11 |
| IRT | 2018-19 | 3/17/2019 | Lombard, IL | 2019 34th Annual Shamrock Shootout | 32 | Horn, David | McClellan, Scott | 8,1 |
| IRT | 2018-19 | 3/17/2019 | Lombard, IL | 2019 34th Annual Shamrock Shootout | 16 | Murray, Samuel | Horn, David | 3,7 |
| IRT | 2018-19 | 3/31/2019 | Cochabamba, BOL | 2019 Open Bolivia American Iris | 16 | Moscoso, Conrrado | Horn, David | 5,6 |
| IRFmatch | 2019 | 4/20/2019 | Barranquilla, COL | 2019 Pan American Championships XXXII - Mens Open | RR | Horn, David | Gomez, Andres | 7,2 |
| IRFmatch | 2019 | 4/20/2019 | Barranquilla, COL | 2019 Pan American Championships XXXII - Mens Open | RR | Horn, David | Mollet, Maikel | 9,7 |
| IRFmatch | 2019 | 4/20/2019 | Barranquilla, COL | 2019 Pan American Championships XXXII - Mens Open | 16 | Horn, David | Galicia, Edwin | 5,7 |
| IRFmatch | 2019 | 4/20/2019 | Barranquilla, COL | 2019 Pan American Championships XXXII - Mens Open | Q | Keller, Carlos | Horn, David | 12,10 |
| IRT | 2018-19 | 4/28/2019 | Sarasota, FL | 2019 Florida IRT Pro-Am | 32 | Horn, David | Warigon, Troy | 7,10 |
| IRT | 2018-19 | 4/28/2019 | Sarasota, FL | 2019 Florida IRT Pro-Am | 16 | Horn, David | Murray, Samuel | 11,12 |
| IRT | 2018-19 | 4/28/2019 | Sarasota, FL | 2019 Florida IRT Pro-Am | Q | Parrilla, Andree | Horn, David | 2,6 |
| IRT | 2018-19 | 5/5/2019 | Syosset, NY | 2019 Syosset Open | 64 | Horn, David | Zelada, Mauricio | (12),9,8 |
| IRT | 2018-19 | 5/5/2019 | Syosset, NY | 2019 Syosset Open | 32 | Horn, David | Camacho, Felipe | 11,11 |
| IRT | 2018-19 | 5/5/2019 | Syosset, NY | 2019 Syosset Open | 16 | Parrilla, Andree | Horn, David | 14,7 |
| AMATEUR | 2019 | 5/26/2019 | Highland Ranch, CO | 2019 USA Racquetball National Singles Championships - Mens Open | 16 | Horn, David | Tribble, Preston | 12,5 |
| AMATEUR | 2019 | 5/26/2019 | Highland Ranch, CO | 2019 USA Racquetball National Singles Championships - Mens Open | Q | Horn, David | Carter, Thomas | (14),12,7 |
| AMATEUR | 2019 | 5/26/2019 | Highland Ranch, CO | 2019 USA Racquetball National Singles Championships - Mens Open | S | Horn, David | Pratt, Charlie | 14,(10),7 |
| AMATEUR | 2019 | 5/26/2019 | Highland Ranch, CO | 2019 USA Racquetball National Singles Championships - Mens Open | F | Bredenbeck, Jake | Horn, David | 1,1 |
| IRT | 2019-20 | 10/6/2019 | Minneapolis, MN | 2019 24th UnitedHealthcare US Open | 32 | Horn, David | Martell, Jaime | 13,6 |
| IRT | 2019-20 | 10/6/2019 | Minneapolis, MN | 2019 24th UnitedHealthcare US Open | 16 | Landa, Alejandro | Horn, David | 7,11 |
| IRT | 2019-20 | 10/27/2019 | Tempe, AZ | 2019 Arizona IRT Pro-Am | 32 | Horn, David | Baez, Ruben | (14),10,3 |
| IRT | 2019-20 | 10/27/2019 | Tempe, AZ | 2019 Arizona IRT Pro-Am | 16 | Murray, Samuel | Horn, David | 12,8 |
| IRT | 2019-20 | 11/3/2019 | Fullerton, CA | 2019 IRT Los Compadres Auto Sales Open | 32 | Estrada, Javier | Horn, David | (12),7,9 |
| IRT | 2019-20 | 1/19/2020 | Austin, TX | 2020 Longhorn Open | 32 | Horn, David | Manzuri, Shai | 13,4 |
| IRT | 2019-20 | 1/19/2020 | Austin, TX | 2020 Longhorn Open | 16 | Murray, Samuel | Horn, David | 10,(12),6 |
| AMATEUR | 2020 | 2/9/2020 | Tempe, AZ | 2020 USA Racquetball National Doubles Championships (Singles US Team Qualifying Event) - Mens Open | 16 | Horn, David | Warigon, Troy | 5,4 |
| AMATEUR | 2020 | 2/9/2020 | Tempe, AZ | 2020 USA Racquetball National Doubles Championships (Singles US Team Qualifying Event) - Mens Open | Q | Horn, David | Zelada, Mauricio | 10,7 |
| AMATEUR | 2020 | 2/9/2020 | Tempe, AZ | 2020 USA Racquetball National Doubles Championships (Singles US Team Qualifying Event) - Mens Open | S | Carson, Rocky | Horn, David | 4,(8),6 |
| AMATEUR | 2020 | 2/9/2020 | Tempe, AZ | 2020 USA Racquetball National Doubles Championships (Singles US Team Qualifying Event) - Mens Open | 3rd | Bredenbeck, Jake | Horn, David | dbl fft |
| IRT | 2022 | 1/23/2022 | Lilburn, GA | 2022 Suivant Consulting Grand Slam | 64 | Alonso, Jordy | Horn, David | 14,7 |
| IRT | 2022 | 5/1/2022 | Canoga Park, CA | 2022 IRT SoCal Open | 128 | Horn, David | Perez, Armando | 1,5 |
| IRT | 2022 | 5/1/2022 | Canoga Park, CA | 2022 IRT SoCal Open | 64 | Horn, David | Douglas, Jim | 2,2 |
| IRT | 2022 | 5/1/2022 | Canoga Park, CA | 2022 IRT SoCal Open | 32 | Mercado, Mario | Horn, David | 3,(8),8 |
| IRT | 2022 | 5/15/2022 | Wantagh, NY | 2022 New York Open | 128 | Horn, David | Pujari, Maneesh | 6,1 |
| IRT | 2022 | 5/15/2022 | Wantagh, NY | 2022 New York Open | 64 | Horn, David | Cueva, Juan Francisco | 13,7 |
| IRT | 2022 | 5/15/2022 | Wantagh, NY | 2022 New York Open | 32 | Horn, David | Bredenbeck, Jake | 7,10 |
| IRT | 2022 | 5/15/2022 | Wantagh, NY | 2022 New York Open | 16 | Mercado, Mario | Horn, David | (14),7,3 |
| AMATEUR | 2022 | 5/29/2022 | College Station, TX | 2022 USA Racquetball National Singles and Doubles - Mens Open | 16 | Horn, David | Horner, Benjamin | 4,6,9 |
| AMATEUR | 2022 | 5/29/2022 | College Station, TX | 2022 USA Racquetball National Singles and Doubles - Mens Open | Q | Manilla, Adam | Horn, David | wbf-inj |
| IRT | 2023 | 12/11/2023 | Pleasanton, CA | 2023 Golden State Open | 64 | Horn, David | Gatica, Rafael | 13,12 |
| IRT | 2023 | 12/11/2023 | Pleasanton, CA | 2023 Golden State Open | 32 | Carter, Thomas | Horn, David | 8,10 |
| IRT | 2025-26 | 2/2/2025 | Sioux Falls, SD | IRT 2025 45th Annual Lewis Drug Pro-Am | 64 | Horn, David | Horner, Benjamin | 6,4 |
| IRT | 2025-26 | 2/2/2025 | Sioux Falls, SD | IRT 2025 45th Annual Lewis Drug Pro-Am | 32 | Montoya, Rodrigo | Horn, David | 6,4 |
| IRT | 2025-26 | 3/9/2025 | Minneapolis, MN | 2025 Minnesota Hall of Fame Tournament | 64 | Horn, David | Meinerz, Lee | 5,5 |
| IRT | 2025-26 | 3/9/2025 | Minneapolis, MN | 2025 Minnesota Hall of Fame Tournament | 32 | Horn, David | Moscoso, Conrrado | 13,0 |
| IRT | 2025-26 | 3/9/2025 | Minneapolis, MN | 2025 Minnesota Hall of Fame Tournament | 16 | Horn, David | Sendrey, Cole | 13,6 |
| IRT | 2025-26 | 3/9/2025 | Minneapolis, MN | 2025 Minnesota Hall of Fame Tournament | Q | Natera, Alan | Horn, David | 11,13 |
| IRT | 2025-26 | 3/16/2025 | Lombard, IL | 2025 40th Annual Papa Nicholas Shamrock Shootout | 32 | Martell, Jaime | Horn, David | (14),10,0 |
| AMATEUR | 2025 | 5/18/2025 | Pleasanton, CA | 2025 USA Racquetball National Indoor Championships - Mens Open | 16 | Horn, David | Jamma, Tony | 4,3,3 |
| AMATEUR | 2025 | 5/18/2025 | Pleasanton, CA | 2025 USA Racquetball National Indoor Championships - Mens Open | Q | Horn, David | Collins, Robert | (7),(7),7,6,7 |
| AMATEUR | 2025 | 5/18/2025 | Pleasanton, CA | 2025 USA Racquetball National Indoor Championships - Mens Open | S | De La Rosa, Daniel | Horn, David | 7,5,10 |
| AMATEUR | 2025 | 5/18/2025 | Pleasanton, CA | 2025 USA Racquetball National Indoor Championships - Mens Open | 3rd | Horn, David | Carter, Thomas | dbl-fft |
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