Stadium: Stadium Round: 29 Ground: Hardcourt outdoor
| Challenger Cary MD | 2021/09/17 18:00 | Blumberg/Schnur v Harrison C / Novikov D | 3-6,6-1,10-5 |
| Challenger Cary MD | 2021/09/16 20:00 | Blumberg/Schnur v Fancutt/Kubler | 7-5,6-1 |
| Challenger Cary MD | 2021/09/15 23:50 | Glasspool/Monroe v Blumberg/Schnur | 2-6,5-7 |
| Challenger Cary MD | 2021/09/17 22:35 | Kozlov S / Polansky P v Jung J / Krueger M | 6-7,7-5,10-4 |
| Challenger Cary MD | 2021/09/16 18:30 | Aragone/Barrientos v Kozlov S / Polansky P | 4-6,4-6 |
| Challenger Cary MD | 2021/09/15 20:00 | Kozlov S / Polansky P v Galloway R / Lawson A | 6-1,6-2 |
| Challenger - Sarasota - Doubles Hommes | 2017/04/23 17:00 | Lipsky S / Melzer J v Kozlov S / Polansky P | 6-2,6-4 |
| Challenger - Sarasota - Doubles Hommes | 2017/04/22 19:00 | Gonzalez S / Venus M v Kozlov S / Polansky P | 3-6,6-1,3-10 |
| Challenger - Sarasota - Doubles Hommes | 2017/04/19 21:00 | Kozlov S / Polansky P v Pael L / Sa A | 6-3,3-6,10-7 |
| Challenger - Sarasota - Doubles Hommes | 2017/04/19 20:48 | Kozlov S / Polansky P v Pael L / Sa A | 6-3,3-6,0-0 |
| Challenger - Sarasota - Doubles Hommes | 2017/04/17 20:05 | Kozlov S / Polansky P v Bangoura S / Mcdonald M | 1-6,6-2,11-9 |