Stadium: Stadium Round: 28 Ground: Hardcourt outdoor
| Challenger Cary - MP | 2021/09/16 18:30 | Aragone/Barrientos v Kozlov/Polansky | 4-6,4-6 |
| Challenger Cary - MP | 2021/09/15 20:00 | Kozlov/Polansky v Galloway/Lawson | 6-1,6-2 |
| Challenger Sarasota - MP | 2017/04/23 17:00 | Lipsky/Melzer v Kozlov/Polansky | 6-2,6-4 |
| Challenger Sarasota - MP | 2017/04/22 19:00 | Gonzalez/Venus v Kozlov/Polansky | 3-6,6-1,3-10 |
| Challenger Sarasota - MP | 2017/04/19 21:00 | Kozlov/Polansky v Paes/Sa | 6-3,3-6,10-7 |
| Challenger Sarasota - MP | 2017/04/19 20:48 | Kozlov/Polansky v Paes/Sa | 6-3,3-6,0-0 |
| Challenger Sarasota - MP | 2017/04/17 20:05 | Kozlov/Polansky v Bangoura/McDonald | 1-6,6-2,11-9 |
| Challenger Cary - MP | 2021/09/16 21:00 | Jung/Krueger v Bolt/Hijikata | 6-4,6-7,12-10 |
| Challenger Cary - MP | 2021/09/14 20:15 | Jung/Krueger v Cernoch/Kiger | 7-6,3-6,10-5 |
| Challenger Tallahassee - MP | 2021/04/21 15:00 | Luz/Matos v Jung/Krueger | 6-2,3-6,10-8 |
| Challenger Houston – MP | 2019/11/13 22:30 | Jung/Krueger v Bambridge/Lammons | 1-6,6-7 |
| Challenger Phoenix - MP | 2019/03/14 17:00 | Murray/Skupski v Jung/Krueger | 6-3,7-6 |
| Challenger Las Vegas – MP | 2018/10/26 21:15 | Arevalo/Maytin v Jung/Krueger | 7-5,6-7,10-5 |
| Challenger Las Vegas – MP | 2018/10/24 21:00 | Gonzales/Lammons v Jung/Krueger | 3-6,6-7 |
| Challenger Las Vegas – MP | 2018/10/23 23:15 | Verdugo/Martinez v Jung/Krueger | 4-6,4-6 |