| UTR Pro Tennis Series Mulheim | 2021/07/29 10:00 | Hendrik Jebens v Vasile Antonescu | 4-6,7-6,6-2 |
| UTR Pro Tennis Series Mulheim | 2021/07/28 12:30 | Marvin Schaber v Hendrik Jebens | 6-2,7-5 |
| UTR Pro Tennis Series Mulheim | 2021/07/28 07:00 | Tim Gennes v Hendrik Jebens | 1-6,3-5 |
| ITF M25 Ajaccio | 2021/07/07 19:05 | Petros Tsitsipas v Hendrik Jebens | 3-6,6-0,6-1 |
| ITF M25 Bakio | 2021/06/29 08:55 | Hendrik Jebens v Inaki Montes-De La Torre | 6-7,3-6 |
| ITF M25 Klosters | 2021/06/20 08:45 | Tomas Papik v Hendrik Jebens | 6-3,7-6 |
| ITF M25 Angers | 2021/04/19 09:00 | Louis Dussin v Hendrik Jebens | 6-3,7-5 |
| ITF M25 Angers | 2021/04/18 09:00 | Kalomm Panzo v Hendrik Jebens | 0-6,1-6 |
| UTR Pro Tennis Series Mulheim | 2021/07/29 08:30 | Marvin Schaber v John Sperle | 2-6,2-6 |
| UTR Pro Tennis Series Mulheim | 2021/07/28 12:00 | Tim Gennes v John Sperle | 1-6,3-6 |
| UTR Pro Tennis Series Mulheim | 2021/07/26 12:30 | Vasile Antonescu v John Sperle | 6-3,5-2 |
| ITF M15 Antalya | 2021/05/31 08:30 | Daniel Antonio Nunez v John Sperle | 6-4,7-5 |
| ITF M15 Antalya | 2021/05/23 07:00 | John Sperle v Jip Van Assendelft | 5-7,7-5,4-10 |
| 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 |