Stadium: Court 1 Round: 27 Ground: Hardcourt indoor
| ATP Belgrade MD | 2021/05/25 10:00 | Bopanna/Skugor v Delbonis/Sitak | 3-6,6-4,8-10 |
| ATP Great Ocean Road Open MD | 2021/02/05 04:30 | Daniell/Venus v Delbonis/Sitak | 7-6,6-2 |
| ATP Great Ocean Road Open MD | 2021/02/03 06:45 | Delbonis/Sitak v Koepfer/Sandgren | 6-7,6-3,10-8 |
| ATP Belgrade MD | 2021/05/23 15:20 | Sabanov/Sabanov v Brkic/Cacic | 4-6,6-3,10-8 |
| Challenger Heilbronn MD | 2021/05/12 13:30 | Matos/M R Alves v Sabanov/Sabanov | 6-3,6-0 |
| Challenger Prague MD | 2021/05/08 12:50 | Polmans/Stakhovsky v Sabanov/Sabanov | 6-3,6-4 |
| Challenger Prague MD | 2021/05/07 09:00 | Sabanov/Sabanov v Drzewiecki/Majchrzak | 6-2,6-2 |
| Challenger Prague MD | 2021/05/06 10:45 | King/Reese v Sabanov/Sabanov | 6-7,5-7 |
| Challenger Prague MD | 2021/05/04 15:40 | Walkow/Zielinski v Sabanov/Sabanov | 6-3,3-6,5-10 |
| ATP Belgrade MD | 2021/04/24 13:00 | Behar/Escobar v Sabanov/Sabanov | 3-6,6-7 |
| ATP Belgrade MD | 2021/04/23 14:15 | Sabanov/Sabanov v Berrettini/Vavassori | 7-6,6-3 |