Stadium: Court 5 Round: 44 Ground: Clay
| ITF M15 Gdynia | 2021/08/08 08:00 | Svyatoslav Ilnytskyy v Bartlomiej Andrzejczak | 6-2,6-0 |
| ITF M25 Grodzisk Mazowiecki | 2021/08/01 16:55 | Karol Filar v Bartlomiej Andrzejczak | 6-2,6-2 |
| ITF M25 Poznan | 2020/08/24 11:00 | Piotr Grynkowski v Bartlomiej Andrzejczak | 6-4,3-6,10-5 |
| ITF M25 Poznan | 2019/08/19 08:00 | Bartlomiej Andrzejczak v Mikolaj Szmyrgala | 3-6,7-6,5-10 |
| ITF M25 Bydgoszcz | 2019/08/12 08:00 | Bartlomiej Andrzejczak v Janis Podzus | 3-6,1-6 |
| ITF Poland F8 | 2018/08/18 08:00 | Bartlomiej Andrzejczak v Jan Wajdemajer | 3-6,3-6 |
| ITF Poland F7 | 2018/08/11 08:00 | Bartlomiej Andrzejczak v Michal Mikula | 4-6,1-6 |
| ITF Poland F6 Qual | 2018/08/05 09:30 | Mateusz Piatek v Bartlomiej Andrzejczak | 6-1,6-2 |
| ITF M25 Prostejov | 2021/08/16 07:55 | Mark Havlicek v Jan Jermar | 6-1,6-0 |
| ITF M25 Prostejov | 2021/08/15 10:00 | Patrik Jancovic v Jan Jermar | 6-7,2-6 |
| ITF M15 Gdynia | 2021/08/08 08:00 | Yujiro Onuma v Jan Jermar | 6-4,2-6,10-5 |
| ITF M25 Grodzisk Mazowiecki | 2021/08/02 12:20 | Jan Jermar v Roman Postolka | 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 Francisco Vittar | 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 |