Stadium: Court 2 Round: 54 Ground: Clay
| ITF - M15 Monastir | 2021/03/28 09:00 | Aleksandr Kalinin v Jakub Kroslak | 7-5,7-6 |
| ITF - M15 Monastir | 2021/03/22 10:00 | Jakub Kroslak v Aristotelis Thanos | 4-6,2-6 |
| ITF - M15 Monastir | 2021/03/21 16:00 | Jakub Kroslak v Tushar Sharma | 6-1,6-1 |
| ITF M15 - Bratislava | 2021/03/09 09:00 | Jakub Kroslak v Luca Van Assche | 2-6,1-6 |
| ITF M15 - Bratislava | 2021/03/08 15:00 | Jakub Kroslak v Radovan Michalik | 6-1,1-6,10-7 |
| ITF M25 - Wrocław | 2021/06/29 08:00 | Szymon Kielan v Mateusz Terczynski | 6-3,6-2 |
| ITF M25 - Wrocław | 2021/06/28 11:00 | Mateusz Terczynski v Lukas Palovic | 6-3,6-1 |
| ITF M25 - Wrocław | 2021/06/27 14:00 | Dominik Langmajer v Mateusz Terczynski | 1-6,3-6 |
| ITF - M25 Poznan | 2020/08/23 11:00 | Nikolas Lahky v Mateusz Terczynski | 6-4,2-6,10-6 |
| Polish National Tour | 2020/07/16 13:05 | Mateusz Terczynski v Kamil Majchrzak | 1-6,1-6 |
| Polish National Tour | 2020/07/07 10:30 | Mateusz Terczynski v Maciej Rajski | 0-6,0-6 |
| Marbello Cup Exhibition Series | 2020/06/05 07:00 | Mateusz Terczynski v Michal Dembek | 0-6,1-6 |
| Marbello Cup Exhibition Series | 2020/06/04 10:35 | Mateusz Terczynski v Michal Dembek | 2-6,0-6 |