Stadium: Court 6 Round: 62 Ground: Hardcourt outdoor
| 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 | 2021/03/15 08:00 | Kai Lemstra v John Sperle | 6-3,6-3 |
| ITF M15 Troisdorf | 2021/05/10 11:00 | Aliaksandr Bulitski v Osman Torski | 6-0,6-3 |
| ITF M15 Troisdorf | 2021/05/09 10:00 | Aliaksandr Bulitski v Jannik Rother | 6-4,1-6,10-7 |
| Daily Premier Tour | 2020/03/21 23:28 | Aliaksandr Bulitski v Artsiom Bardzin | 7-6,6-2 |
| Daily Premier Tour | 2020/03/21 07:50 | Alexander Golinko v Aliaksandr Bulitski | 4-6,6-3,3-6,4-6 |
| Challenger Nur-Sultan | 2020/03/10 05:00 | Nino Serdarusic v Aliaksandr Bulitski | 6-2,6-2 |
| ITF M25 Aktobe | 2020/02/18 06:50 | Ivan Liutarevich v Aliaksandr Bulitski | 6-3,4-6,11-9 |
| ITF M25 Aktobe | 2020/02/17 05:00 | Klim Kozyrev v Aliaksandr Bulitski | 5-7,3-6 |
| ITF M25 Aktobe | 2020/02/13 07:25 | Aliaksandr Bulitski v Denis Yevseyev | 5-7,4-6 |