Stadium: Main Court Round: 44 Ground: Clay
| ITF M25 Lodz | 2023/08/09 08:00 | Maciej Kos v Juan Bautista Torres | 2-6,2-6 |
| ITF M25 Lodz | 2023/08/08 09:00 | Maciej Kos v Daniel Orlita | 6-1,6-4 |
| ITF M25 Lodz | 2023/08/07 13:30 | Peter Goldsteiner v Maciej Kos | 6-3,4-6,6-10 |
| ITF M25 Lodz | 2023/08/07 07:30 | Maciej Kos v Marcel Politowicz | 6-1,7-6 |
| ITF M15 Lodz | 2021/08/15 08:00 | Maciej Kos v Dmitrii Vasilev | 6-4,3-6,9-11 |
| ITF M15 Gdynia | 2021/08/08 08:00 | Juliusz Bienkiewicz v Maciej Kos | 6-4,6-3 |
| Polish National Tour | 2020/08/20 12:00 | Daniel Michalski v Maciej Kos | 6-2,6-0 |
| Polish National Tour | 2020/06/17 08:30 | Kamil Gajewski v Maciej Kos | 4-6,6-0,6-2 |
| ITF M25 Lodz | 2023/08/08 11:05 | Piotr Grynkowski v Piotr Siekanowicz | 6-4,6-1 |
| ITF M25 Lodz | 2023/08/08 07:30 | Piotr Siekanowicz v Gabriel Matuszewski | 1-6,7-6,10-6 |
| ITF M25 Lodz | 2023/08/07 10:30 | Piotr Siekanowicz v Jakub Solarski | 6-0,6-2 |