Stadium: Court 4 Round: 26 Ground: Hardcourt outdoor
| Challenger Marbella MD | 2021/03/30 12:55 | Doumbia/Reboul v Polmans/Smith | 4-6,6-7 |
| Challenger Biella MD | 2021/03/17 18:25 | Doumbia/Reboul v Molchanov D / Stakhovsky S | 5-7,6-3,7-10 |
| Challenger Biella MD | 2021/03/10 17:25 | Doumbia/Reboul v Masur/Rodionov | 4-6,4-6 |
| Challenger Gran Canaria MD | 2021/03/05 11:00 | Couacaud/Guinard v Doumbia/Reboul | 6-4,6-1 |
| Challenger Gran Canaria MD | 2021/03/04 13:55 | Doumbia/Reboul v Cervantes Huegun I / Roca Batalla O | 2-6,7-5,12-10 |
| Challenger Gran Canaria MD | 2021/03/03 11:00 | Doumbia/Reboul v Cornea/Vrbensky | 7-5,6-7,10-2 |
| Challenger Gran Canaria MD | 2021/02/23 14:30 | Giustino L / Trungelliti M v Doumbia/Reboul | 3-6,6-3,10-8 |
| Challenger - Quimper - Doubles Hommes | 2021/01/29 11:30 | Doumbia/Reboul v Barrere G / Olivetti A | 4-6,2-6 |
| Challenger - Lugano - Doubles Hommes | 2021/03/26 16:05 | Molchanov D / Stakhovsky S v Walkow S / Zielinski J | 4-6,7-6,10-4 |
| Challenger - Lugano - Doubles Hommes | 2021/03/25 14:20 | Walkow S / Zielinski J v Raja/Weissborn | 6-4,6-2 |
| Challenger - Lugano - Doubles Hommes | 2021/03/24 13:35 | Walkow S / Zielinski J v Margaroli/Sock | 7-6,6-7,10-3 |
| Challenger Biella MD | 2021/03/12 14:45 | Molchanov D / Stakhovsky S v Walkow S / Zielinski J | 7-6,7-6 |
| Challenger Biella MD | 2021/03/11 12:00 | Masur/Rodionov v Walkow S / Zielinski J | 2-6,2-6 |
| Challenger Biella MD | 2021/02/13 12:30 | Walkow S / Zielinski J v Martinez / Vega | 4-6,6-3,8-10 |
| Challenger Biella MD | 2021/02/12 12:00 | Walkow S / Zielinski J v Galloway R / Lawson A | 6-4,6-7,10-6 |
| Challenger Biella MD | 2021/02/11 12:40 | Margaroli/Vasilevski v Walkow S / Zielinski J | 2-6,5-7 |