Stadium: Court 1 Round: 28 Ground: Clay
| Challenger - Oeiras - HD | 2021/05/20 11:00 | Coria/Gomez v Johnson/Schnur | 6-7,4-6 |
| Challenger - Oeiras - HD | 2021/05/18 16:35 | Johnson/Schnur v Matos/Sousa | 2-6,7-5,10-7 |
| Challenger - Oeiras - HD | 2021/05/20 10:00 | Jebavy/Vesely v Doumbia/Reboul | 2-6,7-6,7-10 |
| Challenger - Oeiras - HD | 2021/05/19 14:40 | Doumbia/Reboul v Dellien/Mayer | 6-4,6-3 |
| Challenger - Biella - HD | 2021/05/07 13:05 | Goransson/Lammons v Doumbia/Reboul | 7-6,6-3 |
| Challenger - Biella - HD | 2021/05/06 16:50 | Doumbia/Reboul v Coppejans/Menezes | 6-4,6-1 |
| Challenger - Biella - HD | 2021/05/04 14:55 | Doumbia/Reboul v Bortolotti/Rodriguez | 7-6,6-7,10-2 |
| Challenger - Rome - HD | 2021/05/01 09:30 | Andreozzi/Duran v Doumbia/Reboul | 5-7,3-6 |
| Challenger - Rome - HD | 2021/04/30 12:35 | Bemelmans/Goransson v Doumbia/Reboul | 3-6,6-3,7-10 |
| Challenger - Rome - HD | 2021/04/29 12:15 | Doumbia/Reboul v Matos/M R Alves | 7-6,5-7,10-6 |