Stadium: Court 17 Round: 14 Ground: Clay
| Challenger Mouilleron le Captif | 2021/10/03 12:30 | Karol Drzewiecki v Szymon Walkow | 3-6,6-7 |
| Challenger Szczecin | 2021/09/12 14:45 | Karol Drzewiecki v Bogdan Bobrov | 2-6,4-6 |
| Challenger Cherbourg | 2021/02/07 09:30 | Vladyslav Orlov v Karol Drzewiecki | 6-3,6-2 |
| Polish National Tour | 2020/07/24 09:00 | Karol Drzewiecki v Filip Kolasinski | 1-6,1-6 |
| Polish National Tour | 2020/06/17 13:57 | Pawel Juszczak v Karol Drzewiecki | 0-0 |
| Polish National Tour | 2020/06/17 07:00 | Karol Drzewiecki v Piotr Galus | 6-1,7-5 |
| ITF M25 Palm Coast | 2020/02/03 18:00 | Jaume Pla Malfeito v Karol Drzewiecki | 6-4,6-3 |
| ITF M25 Weston | 2020/01/28 14:00 | Alejandro Gomez v Karol Drzewiecki | 7-5,6-3 |
| Challenger Tampere | 2022/07/19 16:05 | Patrik Niklas-Salminen v Lorenzo Giustino | 2-6,3-6 |
| ITF M15 Bytom | 2022/06/08 12:15 | Paul Woerner v Patrik Niklas-Salminen | 6-4,6-3 |
| Challenger Poznan | 2022/05/29 10:35 | Oleksii Krutykh v Patrik Niklas-Salminen | 2-6,7-5,6-3 |
| ITF M15 Kouvola | 2022/05/20 07:55 | Patrik Niklas-Salminen v Aleksi Lofman | 5-7,4-6 |
| ITF M15 Kouvola | 2022/05/19 07:00 | Patrik Niklas-Salminen v Peetu Pohjola | 7-6,6-1 |
| ITF M15 Kouvola | 2022/05/18 09:40 | Patrik Niklas-Salminen v Oskari Eerola | 6-0,6-4 |
| ITF M25 Nottingham | 2022/05/10 09:00 | Alastair Gray v Patrik Niklas-Salminen | 6-1,6-1 |
| ITF M25 Nottingham | 2022/05/02 11:30 | Patrik Niklas-Salminen v Billy Blaydes | 3-6,4-6 |