| UTR Pro Tennis Series - Florida | 2022/10/17 16:30 | Rudy Quan v Boris Kozlov | 4-6,6-3,6-3 |
| ITF USA F32 | 2018/11/15 20:50 | Boris Kozlov v Juan P G Mazzuchi | 6-7,4-6 |
| ITF USA F32 | 2018/11/15 15:00 | Juan I Cabrera v Boris Kozlov | 7-6,4-6,10-12 |
| ITF USA F32 | 2018/11/10 18:00 | Sergio G Montesa v Boris Kozlov | 6-7,4-6 |
| ITF USA F21 Qual | 2018/07/30 15:00 | Boris Kozlov v Alexander Cozbinov | 6-4,6-7,2-6 |
| ITF USA F20 Qual | 2018/07/21 15:00 | Boris Kozlov v Carl Soderlund | 3-6,1-6 |
| ITF USA F19B Qual | 2018/07/15 15:00 | Alfredo Perez v Boris Kozlov | 6-3,6-3 |
| ITF USA F19 Qual | 2018/07/01 16:00 | Matic Spec v Boris Kozlov | 6-2,6-4 |
| UTR Pro Tennis Series - Florida | 2022/10/17 15:00 | Yannik Rahman v Federico Boscarino | 6-1,6-2 |
| ITF - M15 Cancún | 2022/09/29 14:00 | Alex Kuperstein v Yannik Rahman | 6-3,6-3 |
| ITF - M15 Cancún | 2022/09/28 14:00 | Yannik Rahman v Joao M Nusdeo | 3-6,6-0,6-1 |