Stadium: Central Round: 26 Ground: Hardcourt indoor
| ITF M25 Grasse | 2021/06/14 07:30 | Robin Bertrand v Mathys Erhard | 2-6,6-1,6-10 |
| ITF M25 Grasse | 2021/06/13 09:45 | Robin Bertrand v Mathieu Scaglia | 6-1,6-0 |
| ITF M25 Vic | 2021/05/16 07:00 | Robin Bertrand v Facundo Juarez | 5-7,4-6 |
| ITF M15 Grenoble | 2021/02/09 13:50 | Robin Bertrand v Thomas Laurent | 3-6,4-6 |
| ITF M15 Monastir | 2021/01/11 09:30 | Louis Tessa v Robin Bertrand | 6-4,6-7,10-7 |
| ITF M15 Monastir | 2021/01/10 13:30 | Robin Bertrand v Arvid Nordquist | 7-6,6-0 |
| ITF M15 Monastir | 2021/01/10 09:30 | Robin Bertrand v Mohamed Amin Oueslati | 6-1,6-0 |
| ITF M15 Monastir | 2021/01/07 11:05 | Wojciech Marek v Robin Bertrand | 6-4,6-4 |
| Challenger Forli | 2021/06/15 09:30 | Sebastian Fanselow v Camilo Ugo Carabelli | 2-6,2-6 |
| Challenger Forli | 2021/06/14 09:30 | Sebastian Fanselow v Luca Vanni | 2-6,6-2,7-5 |
| Challenger Forli | 2021/06/13 12:20 | Sebastian Fanselow v Antoine Bellier | 6-3,6-4 |
| Challenger Orlando | 2021/06/06 14:00 | Thiago Agustin Tirante v Sebastian Fanselow | 6-2,3-6,6-4 |
| Challenger Little Rock | 2021/05/31 15:00 | Alexis Galarneau v Sebastian Fanselow | 3-6,6-3,6-4 |
| Challenger Little Rock | 2021/05/30 15:00 | Michail Pervolarakis v Sebastian Fanselow | 4-6,5-7 |
| ITF M15 Troisdorf | 2021/05/15 13:25 | Elmar Ejupovic v Sebastian Fanselow | 7-6,6-4 |
| ITF M15 Troisdorf | 2021/05/14 16:10 | Louis Wessels v Sebastian Fanselow | 4-6,5-7 |