Round: 62 Ground: Hardcourt outdoor
| ITF M25 Meerbusch | 2021/04/12 12:00 | Jim Walder v Paul Woerner | 3-6,5-7 |
| ITF M25 Meerbusch | 2021/04/12 07:30 | Jimmy Yang v Jim Walder | 2-6,3-6 |
| ITF M15 Antalya | 2021/03/14 07:00 | Jim Walder v Ivan Zaytsev | 4-6,2-6 |
| ITF M15 Antalya | 2021/03/07 07:00 | Jim Walder v Federico Campana | 6-1,2-6,13-15 |
| ITF M15 Antalya | 2021/02/28 11:00 | Radu Mihai Papoe v Jim Walder | 6-2,6-4 |
| ITF M15 Antalya | 2021/02/02 07:00 | Oleksii Krutykh v Jim Walder | 4-6,6-3,10-5 |
| ITF M15 Antalya | 2021/01/31 10:00 | Osmancan Soyler v Jim Walder | 3-6,3-6 |
| German Championship | 2020/12/08 15:00 | Jim Walder v Benjamin Hassan | 2-6,6-7 |
| ITF M15 Monastir | 2021/03/28 10:30 | Luca Potenza v Tim Riedel | 6-3,6-2 |
| ITF M15 Monastir | 2021/03/22 10:30 | Tim Riedel v Olivier Rojas | 5-7,4-6 |
| ITF M15 Monastir | 2021/03/14 11:00 | Tim Riedel v Julien Penzlin | 3-6,6-7 |
| ITF M15 Antalya | 2020/11/29 06:00 | Danylo Veremeychuk v Tim Riedel | 7-5,6-0 |
| ITF M15 Benicarlo | 2020/11/22 11:30 | Benjamin Pietri v Tim Riedel | 6-3,1-6,10-2 |
| ITF M15 Antalya | 2020/03/08 08:00 | Tim Riedel v Bogdan Borza | 0-2 |
| ITF M15 Antalya | 2020/03/04 11:45 | Tim Riedel v Stefano Battaglino | 2-6,4-6 |
| ITF M15 Antalya | 2020/03/03 10:30 | Tim Riedel v Jiaqi Duan | 6-2,3-6,10-7 |