| International Tennis Series | 2020/04/20 16:00 | Paolo Lorenzi v Preston Brown | 4-3,4-1 |
| International Tennis Series | 2020/04/20 13:00 | Preston Brown v Adrian Andreev | 4-2,1-4,0-4 |
| International Tennis Series | 2020/04/20 11:00 | Jamie Cerretani v Preston Brown | 1-4,1-4 |
| International Tennis Series | 2020/04/19 18:00 | Evan King v Preston Brown | 1-4,3-4 |
| International Tennis Series | 2020/04/19 15:00 | Preston Brown v Jamie Cerretani | 4-1,4-2 |
| International Tennis Series | 2020/04/19 14:00 | Preston Brown v Paolo Lorenzi | 3-4,0-4 |
| ITF M15 Doha | 2020/03/11 16:35 | Kris Krawcewicz v Preston Brown | 7-5,6-3 |
| ITF M15 Doha | 2020/03/10 13:25 | Preston Brown v Freddie Ridout | 6-0,6-1 |
| ITF M15 Cancun | 2020/03/08 20:00 | Jose Olivares v Nikolay Sysoev | 6-3,6-2 |
| ITF M25 Naples | 2020/02/09 15:00 | Nikolay Sysoev v Daniel Vrba | 1-6,3-6 |
| ITF M15 Cancun | 2020/01/26 19:00 | Osgar O'Hoisin v Nikolay Sysoev | 6-0,6-1 |
| ITF M15 Cancun | 2020/01/19 15:30 | Alexander Lebedev v Nikolay Sysoev | 6-2,6-2 |
| ITF M15 Cancun | 2020/01/12 17:30 | Yeudy Villar v Nikolay Sysoev | 6-3,6-2 |
| ITF M15 Cancun | 2020/01/12 14:00 | Nikolay Sysoev v Joao Victor Ortega | 6-1,6-0 |
| ITF M25 Naples | 2019/10/27 14:00 | Mehdi Laalej v Nikolay Sysoev | 6-2,6-1 |
| ITF M15 Cancun | 2019/08/26 15:30 | Nikolay Sysoev v Logan Smith | 1-6,2-6 |