Stadium: MTA 07 Round: 62 Ground: Clay
| ITF M15 Troisdorf | 2021/05/11 10:15 | John Sperle v Aliaksandr Bulitski | 6-2,4-6,5-10 |
| ITF M15 Troisdorf | 2021/05/10 09:30 | John Sperle v Tim Riedel | 5-7,6-1,10-6 |
| 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 | 2021/04/11 10:00 | Jip Van Assendelft v Piotr Matuszewski | 5-7,4-6 |
| ITF M15 Monastir | 2021/04/05 09:00 | Jip Van Assendelft v Romain Faucon | 3-6,6-1,7-10 |
| ITF M15 Monastir | 2021/04/04 10:30 | Justin Roberts v Jip Van Assendelft | 1-6,3-6 |
| ITF M25 Trimbach | 2021/03/08 13:35 | Patrik Hartmeier v Jip Van Assendelft | 7-5,7-5 |
| ITF M15 Monastir | 2021/02/21 10:00 | Facundo Yunis v Jip Van Assendelft | 6-2,6-4 |
| ITF M15 Monastir | 2021/02/07 13:30 | Jip Van Assendelft v Pierre Faivre | 5-7,2-6 |
| ITF M15 Monastir | 2021/02/01 08:30 | Valentin Lapalu v Jip Van Assendelft | 0-6,6-4,10-3 |
| ITF M15 Monastir | 2021/01/31 11:00 | Jip Van Assendelft v Mhamed Affes | 6-0,6-3 |