| 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 Doha | 2020/03/09 13:05 | Preston Brown v Mihaita Daniel Damian | 6-2,6-0 |
| ATP - Delray Beach | 2020/02/15 23:10 | Preston Brown v Emilio Gomez | 2-6,0-6 |
| ITF - M25 Naples | 2020/02/09 15:00 | Preston Brown v Dragos Constantin Ignat | 4-6,0-6 |
| ITF - M25 Palm Coast | 2020/02/03 15:00 | Preston Brown v Guy Orly Iradukunda | 4-6,3-6 |
| ITF - M15 Austin | 2019/11/21 18:25 | Collin Altamirano v Preston Brown | 6-2,6-0 |
| International Tennis Series | 2020/04/19 13:00 | Evan King v Jamie Cerretani | 1-4,4-2,10-8 |
| ATP - Washington | 2019/07/27 14:00 | Jamie Cerretani v Marc Polmans | 0-6,3-6 |