Stadium: Center Court Round: 14 Ground: Clay
| Challenger Segovia | 2021/07/25 09:00 | Dalibor Svrcina v Skander Mansouri | 6-0,3-6,6-2 |
| Challenger Pozoblanco | 2021/07/19 17:55 | Skander Mansouri v Altug Celikbilek | 7-6,1-6,6-7 |
| Challenger Todi | 2021/07/12 16:30 | Skander Mansouri v Thiago Agustin Tirante | 3-6,2-6 |
| ITF M25 Belgrade | 2021/07/02 09:00 | Skander Mansouri v Nick Hardt | 3-6,0-6 |
| ITF M25 Belgrade | 2021/07/01 10:45 | Skander Mansouri v Mirko Martinez | 6-2,5-7,6-2 |
| ITF M25 Belgrade | 2021/06/29 10:40 | Skander Mansouri v Veljko Krstic | 7-6,7-5 |
| Challenger Prostejov | 2021/06/15 11:20 | Skander Mansouri v Tobias Kamke | 0-6,6-3,2-6 |
| Challenger Prostejov | 2021/06/14 10:15 | Jelle Sels v Skander Mansouri | 6-7,4-6 |
| Polish National Tour | 2021/07/11 13:00 | Jan Zielinski v Filip Peliwo | 5-7,2-6 |
| ITF M25 Poznan | 2020/08/26 07:55 | Jan Zielinski v Vit Kopriva | 4-6,2-6 |
| Polish National Tour | 2020/08/18 07:30 | Pawel Juszczak v Jan Zielinski | 6-2,6-0 |
| Polish National Tour | 2020/08/16 14:00 | Piotr Galus v Jan Zielinski | 3-6,3-6 |
| Polish National Tour | 2020/08/01 09:00 | Pawel Juszczak v Jan Zielinski | 3-6,6-3,7-5 |
| 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 |