Estadio: Court 1 Round: 44 Ground: Clay
| ITF M15 Koszalin | 2023/09/04 12:00 | Mikolaj Lis v William Rejchtman Vinciguerra | 4-6,6-3,10-5 |
| ITF M15 Szczawno | 2023/08/28 10:00 | Mikolaj Lis v Maciej Matuszczyk | 6-4,3-6,8-10 |
| ITF M25 Bielsko-Biala | 2023/08/16 12:40 | Mikolaj Lis v Stephanos Schinas | 6-3,4-6,6-7 |
| ITF M25 Bielsko-Biala | 2023/08/14 16:15 | Mikolaj Lis v Norbert Marosik | 6-2,7-6 |
| ITF M25 Bielsko-Biala | 2023/08/14 10:30 | Mikolaj Lis v Martins Rocens | 6-7,6-4,11-9 |
| ITF M25 Lódz | 2023/08/07 13:30 | Maciej Matuszczyk v Mikolaj Lis | 6-1,7-6 |
| ITF M25 Lódz | 2023/08/07 07:30 | Edoardo Cherie Ligniere v Mikolaj Lis | 1-6,3-6 |
| ITF M15 Wroclaw | 2023/06/26 09:00 | Mikolaj Lis v Marc Antoine Gaillard | 3-6,1-6 |
| ITF M25 Poznan | 2023/08/21 11:30 | Michal Matuszewski v Siim Troost | 6-7,1-6 |
| ITF M25 Poznan | 2023/08/20 12:00 | Michal Matuszewski v Maciej Matuszczyk | 6-3,7-5 |
| ITF M25 Lódz | 2023/08/08 07:30 | Michal Matuszewski v Tomas Vaise | 6-3,1-6,5-10 |
| ITF M25 Poznan | 2022/08/24 10:00 | Olaf Pieczkowski v Michal Matuszewski | 6-1,6-1 |
| ITF M25 Poznan | 2022/08/22 18:15 | Jamie Krattiger v Michal Matuszewski | 4-6,3-6 |
| ITF M25 Poznan | 2022/08/22 12:00 | Michal Matuszewski v Bartlomiej Andrzejczak | 7-5,6-3 |
| ITF M25 Poznan | 2022/08/21 17:30 | Peter Samosi v Michal Matuszewski | 0-6,4-6 |
| ITF M25 Wroclaw | 2022/06/26 10:30 | Dennis Dragomirov v Michal Matuszewski | 4-6,6-4,10-3 |