Stadium: Stadium Court Round: 27 Ground: Clay
| Challenger Tallahassee MD | 2021/04/21 16:00 | Popko/Yevseyev v Pasha/Schnur | 3-6,1-6 |
| Challenger Orlando MD | 2021/04/14 14:00 | Pasha/Schnur v De Jong/Verbeek | 4-6,2-6 |
| 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 Tallahassee MD | 2021/04/21 17:10 | Balaji/Nedunchezhiyan v Huey/Verbeek | 4-6,5-7 |
| Challenger Cleveland MD | 2021/03/18 19:00 | Huey/Verbeek v Gomez/Quiroz | 5-7,6-2,7-10 |
| Challenger Cleveland MD | 2021/03/17 22:00 | Huey/Verbeek v Aragone/Cid Subervi | 5-7,6-1,12-10 |
| Challenger Biella MD | 2021/02/18 13:55 | Huey/Verbeek v Nardi/Zeppieri | 6-4,6-3 |
| Challenger Biella MD | 2021/02/16 18:55 | Goransson/Pel v Huey/Verbeek | 5-7,4-6 |
| Challenger Biella MD | 2021/02/12 13:35 | Huey/Verbeek v Martinez Portero/Vega Hernandez | 5-7,3-6 |
| Challenger Biella MD | 2021/02/11 15:25 | Huey/Verbeek v Sabanov/Sabanov | 6-4,6-4 |
| Challenger Biella MD | 2021/02/10 14:35 | Lacko/Masur v Huey/Verbeek | 1-6,3-6 |