Stadium: Court Nissan Round: 28 Ground: Clay
| Challenger Split - MD | 2021/04/07 12:40 | Doumbia/Reboul v Walkow/Zielinski | 3-6,2-6 |
| Challenger Aix en Provence - MD | 2021/06/17 09:00 | Walkow/Zielinski v Lamasine/Olivetti | 6-4,7-5 |
| Challenger Aix en Provence - MD | 2021/06/16 11:20 | Matos/Molchanov v Walkow/Zielinski | 0-6,7-6,8-10 |
| Challenger Lyon - MD | 2021/06/11 13:30 | Walkow/Zielinski v Cuevas/Cuevas | 6-7,7-6,8-10 |
| Challenger Lyon - MD | 2021/06/10 15:30 | Blanchet/Jacquet v Walkow/Zielinski | 6-7,2-6 |
| Challenger Lyon - MD | 2021/06/08 08:00 | Drzewiecki/Martos Gornes v Walkow/Zielinski | 6-4,5-7,7-10 |
| Challenger Zagrzeb - MD | 2021/05/14 13:00 | Golubev/Nedovyesov v Walkow/Zielinski | 7-6,6-4 |
| Challenger Zagrzeb - MD | 2021/05/14 10:10 | Jung/Soeda v Walkow/Zielinski | 3-6,4-6 |
| Challenger Zagrzeb - MD | 2021/05/12 08:00 | Walkow/Zielinski v Golubev/Tiurnev | 6-0,6-2 |
| Challenger Aix en Provence - MD | 2021/06/16 10:30 | Doumbia/Reboul v Collarini/Olivo | 6-4,6-2 |
| Challenger Lyon - MD | 2021/06/09 13:00 | Doumbia/Reboul v Lamasine/Olivetti | 4-6,3-6 |
| French Open - MD | 2021/06/01 11:10 | Bublik/Golubev v Doumbia/Reboul | 7-6,6-1 |
| Challenger Oeiras - MD | 2021/05/26 13:35 | Lenz/Quiroz v Doumbia/Reboul | 2-6,7-6,10-3 |
| Challenger Oeiras - MD | 2021/05/22 13:00 | Doumbia/Reboul v Reese/Verbeek | 6-4,4-6,7-10 |
| Challenger Oeiras - MD | 2021/05/21 10:00 | Johnson/Schnur v Doumbia/Reboul | 6-7,3-6 |
| Challenger Oeiras - MD | 2021/05/20 10:00 | Jebavy/Vesely v Doumbia/Reboul | 2-6,7-6,7-10 |
| Challenger Oeiras - MD | 2021/05/19 14:40 | Doumbia/Reboul v Dellien/Mayer | 6-4,6-3 |