| UTR Pro Tennis Series Texas | 2021/09/26 13:00 | Anish Sriniketh v Matthis Ross | 6-7,3-6 |
| UTR Pro Tennis Series Texas | 2021/09/25 19:00 | Matthis Ross v Guido Marson | 6-3,0-6,6-4 |
| UTR Pro Tennis Series Texas | 2021/09/24 17:30 | Grant Lothringer v Matthis Ross | 4-6,1-5 |
| UTR Pro Tennis Series Texas | 2021/09/23 17:30 | Stefan Storch v Matthis Ross | 6-4,3-6,5-3 |
| UTR Pro Tennis Series Texas | 2021/09/21 17:30 | Harrison Adams v Matthis Ross | 6-2,5-3 |
| UTR Pro Tennis Series Texas | 2021/09/20 17:00 | Matthis Ross v Suraj Prabodh | 6-1,6-2 |
| UTR Pro Tennis Series Florida | 2021/08/21 13:30 | Jake Van Emburgh v Matthis Ross | 6-2,5-4 |
| UTR Pro Tennis Series Florida | 2021/08/20 12:00 | Henry Lieberman v Matthis Ross | 3-6,3-6 |
| ITF M15 Cancun | 2021/12/06 14:00 | Nikolay Sysoev v Trent Bryde | 4-6,6-3,5-10 |
| ITF M25 Vero Beach | 2021/10/19 16:00 | Diogo Marques v Nikolay Sysoev | 6-2,6-4 |
| ITF M25 Vero Beach | 2021/10/18 16:00 | Nikolay Sysoev v Jordan Parker | 6-2,6-7,10-7 |
| ITF M15 Naples | 2021/10/12 13:30 | Tristan McCormick v Nikolay Sysoev | 4-6,6-4,10-5 |
| ITF M15 Naples | 2021/10/11 14:30 | Xavier Lawrence v Nikolay Sysoev | 7-6,3-6,3-10 |
| ITF M15 Naples | 2021/10/07 13:30 | Nikolay Sysoev v Juan Ignacio Galarza | 1-6,1-6 |
| ITF M15 Naples | 2021/10/06 13:30 | Nikolay Sysoev v Fletcher Scott | 6-4,6-4 |
| ITF M15 Naples | 2021/10/05 13:30 | Jake Krug v Nikolay Sysoev | 6-4,2-6,6-10 |