Stadium: Court 2 De Luigi Round: 26 Ground: Clay
| Challenger Lexington MD | 2021/07/28 20:00 | Doumbia/Reboul v Polansky/Schnur | 6-2,6-7,6-10 |
| ATP Los Cabos MD | 2021/07/21 01:45 | Huey/Johnson v Doumbia/Reboul | 7-6,6-7,11-9 |
| ATP Newport MD | 2021/07/14 19:00 | Sousa/Thompson v Doumbia/Reboul | 6-4,6-2 |
| Challenger Salzburg MD | 2021/07/08 15:00 | Erler/Neuchrist v Doumbia/Reboul | 6-4,6-4 |
| Challenger Salzburg MD | 2021/07/07 10:00 | Cornea/Merino v Doumbia/Reboul | 3-6,6-4,2-10 |
| Challenger Porto MD | 2021/07/01 14:55 | Doumbia/Reboul v Olivo/Reyes-Varela | 7-6,4-6,7-10 |
| Challenger Milan MD | 2021/06/25 12:00 | Doumbia/Reboul v Kopriva/Lehecka | 5-7,3-6 |
| Challenger Milan MD | 2021/06/24 10:00 | Passaro/Vanni v Doumbia/Reboul | 1-6,4-6 |
| Challenger Iasi MD | 2021/07/13 15:00 | Luz/M R Alves v Janvier/Martineau | 6-2,7-6 |