| UTR Pro Olomouc | 2023/07/05 10:23 | Oscar Brown v Bekkhan Atlangeriev | 5-7,6-6 |
| UTR Pro Olomouc | 2023/07/04 11:19 | Oscar Brown v Dominik Suc | 7-5,6-7,6-3 |
| UTR Pro Olomouc | 2023/07/03 06:48 | Martin Facundo Carrizo v Oscar Brown | 5-7,4-6 |
| UTR Pro Florida | 2023/05/13 15:00 | Chad Kissell v Oscar Brown | 6-4,6-4 |
| UTR Pro Florida | 2023/05/12 19:30 | Oscar Brown v Daniel Phillips | 6-3,7-6 |
| UTR Pro Florida | 2023/05/11 20:20 | Oscar Brown v Kevin Humpfner | 7-6,6-5 |
| UTR Pro Florida | 2023/05/10 20:00 | Joao Ceolin v Oscar Brown | 6-3,6-4 |
| UTR Pro Florida | 2023/05/09 20:01 | Nicolas Acevedo v Oscar Brown | 4-6,1-6 |
| UTR Pro Olomouc | 2023/07/06 06:00 | Dominik Suc v Nikita Mashtakov | 6-3,6-2 |
| UTR Pro Olomouc | 2023/07/04 08:30 | Martin Facundo Carrizo v Nikita Mashtakov | 4-6,6-7 |
| UTR Pro Olomouc | 2023/07/03 09:38 | Nikita Mashtakov v Bekkhan Atlangeriev | 6-7,6-4,5-6 |
| ITF M15 Wroclaw | 2023/06/29 07:50 | Nikita Mashtakov v Jiri Barnat | 3-6,6-4,4-6 |
| ITF M15 Wroclaw | 2023/06/27 08:00 | Nikita Mashtakov v Thiago Cigarran | 7-6,7-6 |
| ITF M25 Poprad | 2023/06/21 09:30 | Lukas Neumayer v Nikita Mashtakov | 3-6,6-3,6-4 |
| ITF M15 Nyíregyháza | 2023/06/07 09:30 | Nikita Mashtakov v Zsombor Velcz | 6-3,3-6,0-6 |
| ITF M15 Kursumlijska Banja | 2023/06/01 07:30 | Nikita Mashtakov v Milan Drinic | 2-6,1-6 |