| ITF Poland F6 | 2018/08/10 10:00 | Pawel Juszczak v Jan Zielinski | 6-2,6-7,1-6 |
| ITF Poland F1 | 2015/08/11 11:50 | Jan Zielinski v Pawel Juszczak | 3-6,6-4,6-3 |
| Polish National Tour | 2020/07/31 08:00 | Kacper Zuk v Pawel Juszczak | 4-6,4-6 |
| Polish National Tour | 2020/07/30 08:15 | Pawel Juszczak v Yann Wojcik | 6-4,6-2 |
| Polish National Tour | 2020/07/29 14:00 | Pawel Juszczak v Szymon Walkow | 4-6,6-1,6-2 |
| Polish National Tour | 2020/07/26 09:10 | Kamil Majchrzak v Pawel Juszczak | 6-3,3-6,6-3 |
| Polish National Tour | 2020/07/25 07:00 | Adam Bronka v Pawel Juszczak | 0-6,0-6 |
| Polish National Tour | 2020/07/08 11:10 | Pawel Juszczak v Daniel Michalski | 4-6,7-6,2-6 |
| Polish National Tour | 2020/07/06 14:00 | Pawel Juszczak v Adam Bronka | 2-1 |
| Polish National Tour | 2020/06/24 08:00 | Kacper Zuk v Pawel Juszczak | 7-6,6-7,6-4 |
| Polish National Tour | 2020/07/30 09:45 | Piotr Grynkowski v Jan Zielinski | 2-6,6-4,2-6 |
| Polish National Tour | 2020/07/25 09:35 | Jasza Szajrych v Jan Zielinski | 2-6,6-2,6-4 |
| Polish National Tour | 2020/07/17 12:45 | Jan Zielinski v Daniel Michalski | 2-6,1-6 |
| Polish National Tour | 2020/07/09 11:00 | Daniel Michalski v Jan Zielinski | 6-3,6-1 |
| Polish National Tour | 2020/07/08 13:00 | Jan Zielinski v Kacper Zuk | 6-4,6-3 |
| Polish National Tour | 2020/06/23 08:00 | Kacper Zuk v Jan Zielinski | 6-2,3-6,6-2 |
| Polish National Tour | 2020/06/22 08:35 | Jan Zielinski v Filip Kolasinski | 6-4,6-3 |
| Marbello Cup Exhibition Series | 2020/06/05 08:20 | Filip Kolasinski v Jan Zielinski | 0-6,7-5,7-10 |