Stadium: Court 1 Round: 27 Ground: Hardcourt indoor
| Challenger Salzburg MD | 2021/07/07 11:55 | Galloway/Lawson v Molchanov/Nedovyesov | 7-6,6-4 |
| Challenger Bratislava MD | 2021/06/12 10:30 | Molchanov/Nedovyesov v Arends/Martinez | 7-6,6-1 |
| Challenger Bratislava MD | 2021/06/11 10:00 | Molchanov/Nedovyesov v Luz/Matos | 6-4,6-4 |
| Challenger Bratislava MD | 2021/06/10 11:55 | Molchanov/Nedovyesov v Balaji/Margaroli | 2-6,7-5,10-8 |
| Challenger Bratislava MD | 2021/06/09 13:00 | Molchanov/Nedovyesov v Coria/Olivo | 6-3,7-5 |
| Challenger Prague MD | 2021/05/06 13:30 | Molchanov/Nedovyesov v Polmans/Stakhovsky | 6-3,1-6,7-10 |
| Challenger Prague MD | 2021/05/05 13:55 | Molchanov/Nedovyesov v Griekspoor/Otte | 6-4,6-4 |
| Challenger Rome MD | 2021/04/21 11:55 | Molchanov/Nedovyesov v Arneodo/Couacaud | 4-6,3-6 |
| ATP Estoril MD | 2021/04/27 11:40 | Silva/Sousa v Monroe/Tiafoe | 4-6,2-6 |