Stadium: Court 3 Round: 26 Ground: Hardcourt outdoor
| Challenger Lugano MD | 2021/03/24 14:10 | Pasha/Schnur v Celikbilek/Sachko | 7-6,3-6,6-10 |
| Challenger Biella MD | 2021/03/17 13:05 | Marrero/Menendez-Maceiras v Pasha/Schnur | 7-6,6-7,10-8 |
| Challenger St. Petersburg MD | 2021/03/11 14:10 | Karlovskiy/Serdarusic v Pasha/Schnur | 6-7,6-3,10-4 |
| Challenger St. Petersburg MD | 2021/03/10 14:15 | Igoshin/Nedelko v Pasha/Schnur | 6-7,4-6 |
| Challenger Nur-Sultan MD | 2021/03/06 05:00 | Lammons/Withrow v Pasha/Schnur | 6-4,6-2 |
| Challenger Nur-Sultan MD | 2021/03/05 06:20 | Nedovyesov/Troicki v Pasha/Schnur | 6-7,2-6 |
| Challenger Nur-Sultan MD | 2021/03/04 07:10 | Lenz/Ofner v Pasha/Schnur | 6-7,4-6 |
| Challenger Nur-Sultan MD | 2021/03/02 13:35 | Silva/Ramanathan v Pasha/Schnur | 4-6,3-6 |
| Challenger St. Petersburg MD | 2021/03/13 08:00 | Kravchuk/Yevseyev v De Jong/Verbeek | 1-6,6-3,5-10 |
| Challenger St. Petersburg MD | 2021/03/12 09:35 | De Jong/Verbeek v Karlovskiy/Serdarusic | 6-2,7-6 |
| Challenger St. Petersburg MD | 2021/03/11 13:05 | Kopriva/Vrbensky v De Jong/Verbeek | 0-6,3-6 |
| Challenger St. Petersburg MD | 2021/03/10 14:30 | Golubev/Tiurnev v De Jong/Verbeek | 4-6,6-7 |
| Challenger St. Petersburg MD | 2021/03/06 13:45 | De Jong/Verbeek v Eubanks/Quiroz | 4-6,3-6 |
| Challenger St. Petersburg MD | 2021/03/05 13:45 | De Jong/Verbeek v Bega/Mansouri | 6-2,6-3 |
| Challenger St. Petersburg MD | 2021/03/04 12:45 | De Jong/Verbeek v Kotov/Safiullin | 6-2,6-2 |
| Challenger St. Petersburg MD | 2021/03/03 11:00 | De Jong/Verbeek v Kirkin/Molleker | 6-2,3-6,10-6 |