Stadium: Court 4 Round: 25 Ground: Hardcourt outdoor
| ITF M25 Quinta Do Lago | 2021/10/21 12:50 | Kaichi Uchida v Mathys Erhard | 6-1,3-6,6-1 |
| ITF M25 Quinta Do Lago | 2021/10/20 09:00 | Mathys Erhard v Fabio Coelho | 6-2,6-0 |
| ITF M25 Quinta Do Lago | 2021/10/19 09:00 | Mathys Erhard v Rodrigo Beires | 6-2,6-1 |
| ITF M25 Quinta Do Lago | 2021/10/18 12:45 | Mathys Erhard v Eduardo Morais | 6-1,6-1 |
| ITF M25 Quinta Do Lago | 2021/10/17 13:30 | Mathys Erhard v Keanu Elias Immler | 6-1,6-0 |
| ITF M15 Monastir | 2021/10/13 10:05 | Mathys Erhard v Niki Kaliyanda Poonacha | 4-6,2-6 |
| ITF M15 Monastir | 2021/10/05 12:15 | Skander Mansouri v Mathys Erhard | 6-4,6-4 |
| ITF M25 Koksijde | 2021/08/21 09:00 | Mathys Erhard v Mathieu Perchicot | 3-6,7-5,4-6 |
| ITF M15 Monastir | 2021/11/10 08:00 | Allan Deschamps v Martin Breysach | 7-5,2-6,6-3 |
| ITF M25 Sarreguemines | 2021/10/29 17:50 | Hugo Voljacques v Martin Breysach | 4-6,6-4,6-1 |
| ITF M25 Sarreguemines | 2021/10/28 10:40 | Martin Breysach v Jelle Sels | 6-4,7-6 |
| ITF M25 Sarreguemines | 2021/10/27 10:40 | Amaury Raynel v Martin Breysach | 3-6,2-6 |
| ITF M25 Toulouse | 2021/10/20 15:25 | Giovanni Mpetshi Perricard v Martin Breysach | 6-3,1-6,6-1 |
| ITF M25 Toulouse | 2021/10/19 08:00 | Martin Breysach v Nazim Makhlouf | 7-6,6-3 |
| ITF M25 Toulouse | 2021/10/18 09:40 | Martin Breysach v Simon Reveniau | 6-2,7-5 |
| ITF M25 Nevers | 2021/10/07 09:30 | Martin Breysach v Viktor Durasovic | 4-6,1-6 |