Stadium: TVM Court (3) Round: 62 Ground: Hardcourt outdoor
| ITF M15 - Troisdorf | 2021/05/09 10:00 | Adrian Obert v John Sperle | 3-6,2-6 |
| ITF M25 - Meerbusch | 2021/04/13 09:30 | David Pichler v John Sperle | 6-0,6-2 |
| ITF M25 - Meerbusch | 2021/04/11 12:45 | Luc Hoeijmans v John Sperle | 1-6,3-6 |
| ITF - M15 Monastir | 2021/03/28 10:30 | John Sperle v Anas Fattar | 7-5,4-6,9-11 |
| ITF - M15 Monastir | 2021/03/22 10:00 | Kazuma Kawachi v John Sperle | 6-4,7-5 |
| ITF - M15 Monastir | 2021/03/21 17:00 | John Sperle v Lisandru Rodriguez | 7-6,6-2 |
| ITF - M15 Monastir | 2021/03/15 08:00 | Kai Lemstra v John Sperle | 6-3,6-3 |
| ITF M15 - Troisdorf | 2021/05/09 10:00 | Jim Walder v Tim Riedel | 5-7,1-6 |
| 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 - Benicarló | 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 |