| UTR Pro Tennis Series California | 2021/11/07 20:30 | Roman Postolka v Emmanuel Coste | 7-5,6-0 |
| ITF M15 Lubbock | 2021/09/27 15:00 | Piotr Pawlak v Roman Postolka | 6-3,6-2 |
| UTR Pro Tennis Series Florida | 2021/09/19 14:00 | Matthew Segura v Roman Postolka | 1-1 |
| UTR Pro Tennis Series Florida | 2021/09/17 12:00 | Roman Postolka v Michal Schmid | 5-7,1-5 |
| UTR Pro Tennis Series Florida | 2021/09/15 12:00 | Nikolay Sysoev v Roman Postolka | 2-6,2-6 |
| UTR Pro Tennis Series Florida | 2021/09/14 16:30 | Omar Maldonado v Roman Postolka | 0-6,3-5 |
| UTR Pro Tennis Series Florida | 2021/09/12 12:00 | Rowland Phillips v Roman Postolka | 7-6,6-1 |
| UTR Pro Tennis Series Florida | 2021/09/11 16:30 | Roman Postolka v Michal Lusovsky | 6-2,7-5 |
| UTR Pro Tennis Series California | 2021/11/07 16:00 | Jeremy Field v Conrad Brown | 6-4,1-6,5-7 |
| UTR Pro Tennis Series California | 2021/09/01 18:00 | Conrad Brown v Isaiah Strode | 4-6,3-5 |
| UTR Pro Tennis Series California | 2021/08/31 19:30 | Conrad Brown v Lucas Gomez | 2-6,4-5 |
| UTR Pro Tennis Series California | 2021/08/29 20:58 | Conrad Brown v Kris Van Wyk | 4-6,6-4,3-5 |
| UTR Pro Tennis Series California | 2021/08/29 15:00 | Conrad Brown v Ethan Schiffman | 4-6,2-6 |