Ground: Carpet indoor
| ITF M25 Sion | 2023/08/30 08:00 | Stepan Pecak v Jan Jermar | 5-7,7-6,6-3 |
| ITF M25 Sion | 2023/08/28 17:35 | Luca Parenti v Jan Jermar | 3-6,6-3,6-10 |
| ITF M25 Sion | 2023/08/27 11:05 | Mathieu Bornet v Jan Jermar | 3-6,1-6 |
| ITF M15 Caslano | 2023/08/20 12:25 | Giacomo Crisostomo v Jan Jermar | 6-2,6-0 |
| ITF M25 Telfs | 2023/07/19 12:20 | Jan Jermar v Gerard Campana Lee | 6-4,2-6,2-6 |
| ITF M25 Telfs | 2023/07/16 13:00 | Igor Dudun v Jan Jermar | 6-4,3-6,6-10 |
| ITF M25 Telfs | 2023/07/16 07:00 | Jan Jermar v Nicolas Affolter | 6-2,6-4 |
| UTR Pro Olomouc | 2023/07/09 07:30 | Jakub Novak v Jan Jermar | 6-7,7-6,0-6 |
| ITF M15 Vienna | 2023/08/28 08:00 | Daniel Orlita v Jakub Ostajewski | 6-2,2-6,4-10 |
| ITF M25 Lodz | 2023/08/08 09:00 | Maciej Kos v Daniel Orlita | 6-1,6-4 |
| ITF M25 Lodz | 2023/08/07 13:30 | Jakub Novak v Daniel Orlita | 4-6,1-6 |
| ITF M15 Uslar | 2023/07/17 10:30 | John H Lithen v Daniel Orlita | 6-2,6-2 |
| ITF M15 Uslar | 2023/07/17 08:00 | Jason J Hildebrandt v Daniel Orlita | 4-6,7-5,8-10 |
| ITF M15 Kamen | 2023/06/26 15:00 | Hynek Barton v Daniel Orlita | 6-4,7-5 |
| ITF M15 Kamen | 2023/06/26 08:00 | Karim Al-Amin v Daniel Orlita | 6-7,7-6,3-10 |
| ITF M15 Antalya | 2022/10/30 07:00 | Daniel Orlita v Rik Muller | 1-6,1-6 |