| UTR Pro Tennis Series Florida | 2022/10/17 16:30 | Rudy Quan v Kozlov, Boris | 4-6,6-3,6-3 |
| ITF USA F32 | 2018/11/15 20:50 | Kozlov, Boris v 그라시 마주치, 주안 파블로 | 6-7,4-6 |
| ITF USA F32 | 2018/11/15 15:00 | Cabrera, Juan Ignacio v Kozlov, Boris | 7-6,4-6,10-12 |
| ITF USA F32 | 2018/11/10 18:00 | Gomez Montesa, Sergio v Kozlov, Boris | 6-7,4-6 |
| ITF USA F21 Qual | 2018/07/30 15:00 | Kozlov, Boris v 코즈비노브, 알렉산더 | 6-4,6-7,2-6 |
| ITF USA F20 Qual | 2018/07/21 15:00 | Kozlov, Boris v 소델룬드, 칼 | 3-6,1-6 |
| ITF USA F19B Qual | 2018/07/15 15:00 | 페레즈, 알프레도 v Kozlov, Boris | 6-3,6-3 |
| ITF USA F19 Qual | 2018/07/01 16:00 | 스페크, 마티크 v Kozlov, Boris | 6-2,6-4 |
| UTR Pro Tennis Series Florida | 2022/10/17 15:00 | Yannik Rahman v Boscarino, Federico | 6-1,6-2 |
| ITF M15 Cancun | 2022/09/29 14:00 | Alex Kuperstein v Yannik Rahman | 6-3,6-3 |
| ITF M15 Cancun | 2022/09/28 14:00 | Yannik Rahman v 누스데오, 조아오 마르코스 | 3-6,6-0,6-1 |