Stadium: Center Court Round: 29 Ground: Hardcourt outdoor
| Challenger Split MD | 2021/04/09 12:45 | Golubev/Nedovyesov v Kolar/Rosol | 6-2,2-6,10-6 |
| Challenger Split MD | 2021/04/08 11:00 | Golubev/Nedovyesov v Brown/Margaroli | 6-2,6-1 |
| Challenger Split MD | 2021/04/07 11:05 | Golubev/Nedovyesov v Krolo/Mikrut | 6-1,6-3 |
| Challenger Zadar MD | 2021/03/26 13:45 | Golubev/Nedovyesov v Klein/Molcan | 3-6,4-6 |
| Challenger Zadar MD | 2021/03/25 11:55 | Golubev/Nedovyesov v Brkic/Serdarusic | 1-6,6-2,12-10 |
| Challenger Zadar MD | 2021/03/23 14:40 | Golubev/Nedovyesov v Bortolotti/Giannessi | 6-4,6-4 |
| Challenger Orlando MD | 2020/11/21 20:15 | Krueger/Withrow v Golubev/Nedovyesov | 5-7,4-6 |
| Challenger Orlando MD | 2020/11/20 15:00 | Doumbia/Reboul v Golubev/Nedovyesov | 3-6,5-7 |
| Challenger Split MD | 2021/04/09 13:35 | Walkow/Zielinski v Olivetti/Reid | 6-4,6-4 |
| Challenger Split MD | 2021/04/08 11:00 | Walkow/Zielinski v Galloway/Lawson | 7-5,7-6 |
| Challenger Split MD | 2021/04/07 12:40 | Doumbia/Reboul v Walkow/Zielinski | 3-6,2-6 |
| Challenger Lugano MD | 2021/03/26 16:05 | Molchanov/Stakhovsky v Walkow/Zielinski | 4-6,7-6,10-4 |
| Challenger Lugano MD | 2021/03/25 14:20 | Walkow/Zielinski v Raja/Weissborn | 6-4,6-2 |
| Challenger Lugano MD | 2021/03/24 13:35 | Walkow/Zielinski v Margaroli/Sock | 7-6,6-7,10-3 |
| Challenger Biella MD | 2021/03/12 14:45 | Molchanov/Stakhovsky v Walkow/Zielinski | 7-6,7-6 |
| Challenger Biella MD | 2021/03/11 12:00 | Masur/Rodionov v Walkow/Zielinski | 2-6,2-6 |