Round: 45 Ground: Clay
| ITF USA F5 | 2018/01/19 17:30 | Tomas Krcma v Leonardo Du Plooy | 7-6,6-7,4-6 |
| ITF USA F3 Qual | 2018/01/07 16:00 | Evan Bynoe v Boris Kozlov | 6-4,6-4 |
| Challenger Las Vegas Qual | 2017/10/14 18:40 | Boris Kozlov v Hans Hach Verdugo | 2-6,3-6 |
| Challenger Stockton Qual | 2017/09/30 17:00 | Boris Kozlov v Alexios Halebian | 6-4,0-6,5-7 |
| Challenger Cary Qual | 2017/09/09 18:00 | Blaine Boyden v Boris Kozlov | 6-1,1-6,6-3 |
| ITF USA F24 Qual | 2017/07/15 14:00 | Alessandro-D Ventre v Boris Kozlov | 6-4,6-3 |
| Challenger Winnetka Qual | 2017/07/08 16:35 | Logan Smith v Boris Kozlov | 6-2,6-2 |
| ITF USA F15 | 2017/04/23 15:00 | Jonathan Chang v Boris Kozlov | 6-4,3-6,6-3 |
| ITF USA F15 | 2017/04/22 16:30 | Joseph W. Van Meter v Boris Kozlov | 2-6,4-6 |