Stadium: MTA 05 Round: 62 Ground: Clay
| ITF - M15 Antalya | 2023/12/05 13:20 | Jan Jermar v Joao Eduardo Schiessl | 2-6,4-6 |
| Mulhouse, Singles M-ITF-FRA-16A | 2023/10/30 10:00 | Simon Reveniau v Jan Jermar | 6-2,6-2 |
| Mulhouse, Singles M-ITF-FRA-16A | 2023/10/29 11:20 | Jan Jermar v Dong, Bohua | 6-3,6-2 |
| ITF M25 Pardubice | 2023/09/17 08:00 | Jan Jermar v Vojtech Mares | 3-6,4-6 |
| UTR - Pro Olomouc | 2023/09/16 09:00 | Jan Jermar v Mikolaj Lis | 3-6,3-5 |
| UTR - Pro Olomouc | 2023/09/15 06:00 | Zubac, Dimitrije v Jan Jermar | 5-7,2-6 |
| UTR - Pro Olomouc | 2023/09/14 11:46 | Lukas Rosol v Jan Jermar | 7-6,6-3 |
| UTR - Pro Olomouc | 2023/09/12 06:00 | Nejedly, Pavel v Jan Jermar | 6-2,5-1 |
| ITF M25 Astana | 2023/07/31 05:40 | Seita Watanabe v Vitaliy Zatsepin | 6-2,6-2 |
| Challenger Astana | 2023/07/23 09:45 | Vitaliy Zatsepin v Egor Gerasimov | 3-6,2-6 |
| ITF - M15 Aktobe | 2023/03/06 08:20 | Aliaksandr Liaonenka v Vitaliy Zatsepin | 6-3,6-2 |
| ITF - M15 Aktobe | 2023/02/27 07:45 | Shohei Chikami v Vitaliy Zatsepin | 6-1,4-6,10-5 |
| ITF - M15 Shymkent | 2021/04/12 04:00 | Vitaliy Zatsepin v Ivan Denisov | 2-6,2-6 |