Stadium: Court 3 Round: 54 Ground: Clay
| ITF M15 Antalya | 2021/05/09 07:00 | Sandro Kopp v Sebastian Buehler | 6-0,6-3 |
| ITF Germany F12 | 2018/08/12 08:00 | Sebastian Buehler v Dominique Graf | 2-6,1-6 |
| ITF Germany F12 | 2017/08/21 08:00 | Gabriel Schmidt v Sebastian Buehler | 6-1,6-1 |
| ITF Germany F11 | 2017/08/13 08:00 | Ralph Regus v Sebastian Buehler | 6-1,6-0 |
| ITF Germany F11 | 2017/08/13 08:00 | Luc Sciboz v Sebastian Buehler | 0-6,1-6 |
| ITF Morocco F1 | 2017/07/15 14:00 | Sebastian Buehler v Nathan Lavanchy | 4-6,6-1,6-3 |
| ITF Austria F1 | 2017/07/01 07:00 | Sebastian Buehler v Dominik Hruncak | 4-6,1-6 |
| ITF Netherlands F2 Qual | 2017/06/25 09:00 | Simon Carr v Sebastian Buehler | 6-0,6-0 |
| ITF M25 Wetzlar | 2021/08/03 15:30 | John Sperle v Osman Torski | 3-6,3-6 |
| UTR Pro Tennis Series Mulheim | 2021/07/30 13:30 | Hazem Naw v John Sperle | 6-4,6-2 |
| UTR Pro Tennis Series Mulheim | 2021/07/30 07:00 | Hendrik Jebens v John Sperle | 4-6,6-7 |
| 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 |