| UTR Pro Tennis Series Florida | 2022/10/18 20:12 | Boris Kozlov v Yannik Rahman | 1-6,2-6 |
| 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 |
| UTR Pro Tennis Series California | 2022/12/22 23:10 | Samuel Sippel v Philip Hjorth | 5-7,6-2,6-5 |
| UTR Pro Tennis Series California | 2022/12/21 17:00 | Maxwell McKennon v Samuel Sippel | 6-3,6-3 |
| UTR Pro Tennis Series California | 2022/12/20 17:00 | Stefan Menichella v Samuel Sippel | 6-4,5-7,7-5 |
| UTR Pro Tennis Series California | 2022/12/18 19:30 | Alex Michelsen v Samuel Sippel | 6-3,6-1 |
| UTR Pro Tennis Series California | 2022/12/17 18:00 | Samuel Sippel v Aryan Chaudhary | 4-6,6-4,3-6 |
| UTR Pro Tennis Series California | 2021/02/11 20:50 | Alexander Lebedev v Samuel Sippel | 6-0,6-1 |
| UTR Pro Tennis Series California | 2021/02/10 18:00 | Keenan Mayo v Samuel Sippel | 6-7,3-6 |
| UTR Pro Tennis Series California | 2021/02/08 22:00 | Gage Brymer v Samuel Sippel | 6-4,5-2 |