Stadium: Court 1 Round: 54 Ground: Clay
| Sibenik, Singles M-ITF-CRO-05A | 2021/04/18 10:00 | Mehdi Sadaoui v Jancovic, Patrik | 7-5,6-1 |
| ITF M15 Bratislava | 2021/03/08 09:00 | Jancovic, Patrik v Minarik, Kristof | 2-6,1-6 |
| ITF M15 Bratislava | 2020/11/23 14:00 | Kai Lemstra v Jancovic, Patrik | 6-2,6-2 |
| ITF Slovakia F3 | 2018/08/06 08:00 | Jancovic, Patrik v Smith, Barnaby | 1-6,4-6 |
| ITF Slovakia F2 | 2018/07/29 09:00 | Jancovic, Patrik v Rabas, Daniel | 4-6,2-6 |
| ITF Slovakia F1 | 2018/07/22 08:00 | Jancovic, Patrik v Jiri Jenicek | 2-6,0-6 |
| Czech Republic F6, Singles Qualifying | 2018/07/07 07:30 | Jancovic, Patrik v Brna, David Damian | 4-6,2-6 |
| ITF Czech Republic F4 Qual | 2018/06/23 08:00 | Jancovic, Patrik v Samuel Puskar | 7-5,5-7,2-6 |
| ITF M15 Gdynia | 2021/08/08 08:00 | Onuma, Yujiro v Jan Jermar | 6-4,2-6,10-5 |
| ITF M25 Grodzisk Mazowiecki | 2021/08/02 12:20 | Jan Jermar v Postolka, Roman | 2-6,0-6 |
| ITF M25 Grodzisk Mazowiecki | 2021/08/01 16:05 | Sebastian Usiadek v Jan Jermar | 3-6,3-6 |
| ITF M25 Kottingbrunn | 2021/07/19 13:45 | Jan Jermar v Vittar, Francisco | 4-6,5-7 |
| ITF M25 Kottingbrunn | 2021/07/18 07:30 | Laurin Aerne v Jan Jermar | 1-6,2-6 |
| ITF M25 Telfs | 2021/07/12 07:50 | Neil Oberleitner v Jan Jermar | 6-3,6-0 |
| ITF M15 Poprad | 2021/07/07 10:10 | Luca Castelnuovo v Jan Jermar | 7-6,6-2 |
| ITF M25 Most | 2021/05/24 08:00 | Beran, Jakub v Jan Jermar | 6-4,6-7,10-3 |