Stadium: Center Court Round: 27 Ground: Hardcourt outdoor
| Challenger Split - MD | 2021/04/14 15:40 | Drzewiecki/Masur v Ajdukovic/Nincevic | 2-6,6-7 |
| Challenger Split - MD | 2021/04/14 13:00 | Walkow/Zielinski v Raja/Weissborn | 6-3,6-4 |
| Challenger Split - MD | 2021/04/10 14:35 | Golubev/Nedovyesov v Walkow/Zielinski | 7-5,6-7,10-5 |
| 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 |