Estadio: Stadium 2 Round: 27 Ground: Hardcourt outdoor
| Challenger de Lexington - Dobles Masculinos | 2021/07/27 22:05 | Cid Subervi/Wu v Ito/Sekiguchi | 6-3,6-3 |
| Challenger de Lexington - Dobles Masculinos | 2021/07/28 22:00 | Prashanth/Ramanathan v Harrison/Novikov | 6-4,3-6,5-10 |
| Challenger de Cary - Dobles Masculinos | 2021/07/24 18:00 | Harrison/Novikov v Chrysochos/Pervolarakis | 6-3,6-3 |
| Challenger de Cary - Dobles Masculinos | 2021/07/23 22:45 | Harrison/Novikov v Lacko/Ramanathan | 7-5,6-3 |
| Challenger de Cary - Dobles Masculinos | 2021/07/22 21:30 | Harrison/Novikov v Blanch/Riffice | 6-3,7-5 |
| Challenger Orlando - Dobles masculinos | 2021/04/17 19:10 | Harrison/Novikov v Krueger/Sock | 6-4,5-7,11-13 |
| Challenger Orlando - Dobles masculinos | 2021/04/16 18:55 | Harrison/Novikov v Aragone/Martinez | 6-2,6-3 |
| Challenger Orlando - Dobles masculinos | 2021/04/14 14:00 | Reyes-Varela/Romboli v Harrison/Novikov | 2-6,7-5,6-10 |
| Challenger Orlando - Dobles masculinos | 2021/04/14 14:00 | A.R. Varela/Romboli v Harrison/Novikov | 2-6,7-5,0-1 |