Stadium: Centre Court Round: 27 Ground: Hardcourt indoor
| Challenger St. Petersburg MD | 2021/03/10 07:00 | Karlovskiy E / Serdarusic N v Sels J / van Rijthoven T | 6-1,6-2 |
| Challenger St. Petersburg MD | 2021/03/03 14:20 | Gabashvili T / Kravchuk K v Karlovskiy E / Serdarusic N | 6-3,6-4 |
| Challenger Charlottesville MD | 2018/11/01 21:45 | Paes L / Reyes-Varela M v Karlovskiy E / Serdarusic N | 4-6,7-6,13-11 |
| Challenger Charlottesville MD | 2018/10/29 16:55 | Karlovskiy E / Serdarusic N v Lord M / Ross G | 4-6,6-1,10-3 |
| Challenger Charlottesville MD | 2018/10/28 20:20 | Karlovskiy E / Serdarusic N v Choinski J / Majchrzak K | 7-6,6-2 |
| Challenger St. Petersburg MD | 2021/03/10 14:15 | Igoshin/Nedelko v Pasha N / Schnur M | 6-7,4-6 |
| Challenger Nur-Sultan MD | 2021/03/06 05:00 | Lammons/Withrow v Pasha N / Schnur M | 6-4,6-2 |
| Challenger Nur-Sultan MD | 2021/03/05 06:20 | Nedovyesov/Troicki v Pasha N / Schnur M | 6-7,2-6 |
| Challenger Nur-Sultan MD | 2021/03/04 07:10 | Lenz/Ofner v Pasha N / Schnur M | 6-7,4-6 |
| Challenger Nur-Sultan MD | 2021/03/02 13:35 | Silva/Ramanathan v Pasha N / Schnur M | 4-6,3-6 |
| Challenger Nur-Sultan MD | 2021/02/27 08:30 | Molchanov D / Nedovyesov A v Pasha N / Schnur M | 6-4,6-4 |
| Challenger Nur-Sultan MD | 2021/02/26 06:40 | Istomin/Yevseyev v Pasha N / Schnur M | 6-4,1-6,9-11 |
| Challenger Nur-Sultan MD | 2021/02/25 09:40 | Metreveli A / Popko D v Pasha N / Schnur M | 5-7,6-7 |