Stadium: Court 1 Round: 54 Ground: Clay
| ITF Poland F8 | 2017/08/01 12:15 | Gajewski, Kamil v Maciej Rajski | 4-6,4-6 |
| ITF Poland F3 Qual | 2015/08/24 09:50 | Maciej Rajski v Gajewski, Kamil | 6-1,6-2 |
| Bydgoszcz, Singles Qualifying M-ITF-POL-04A | 2019/08/14 08:00 | Dougaz, Aziz v Maciej Rajski | 6-4,7-5 |
| ITF M15 Novi Sad | 2019/08/08 08:00 | Paroulek, Tadeas v Maciej Rajski | 3-6,6-3,6-2 |
| ITF M15 Novi Sad | 2019/08/06 11:30 | Jirousek, Tomas v Maciej Rajski | 4-6,3-6 |
| ITF M15 Novi Sad | 2019/08/02 10:05 | Celebic, Ljubomir v Maciej Rajski | 6-3,6-3 |
| ITF M15 Novi Sad | 2019/08/01 08:00 | Kranic, Karlo v Maciej Rajski | 3-6,2-6 |
| ITF M15 Novi Sad | 2019/07/31 08:00 | Milan Drinic v Maciej Rajski | 2-6,6-2,2-6 |
| ITF M15 Wroclaw | 2019/07/05 10:00 | Alexey Zakharov v Maciej Rajski | 7-6,1-6,6-1 |
| ITF M15 Wroclaw | 2019/07/04 11:25 | Maciej Rajski v Michael Vrbensky | 3-6,6-2,7-5 |
| ITF M25 Poznan | 2019/08/19 08:00 | Gajewski, Kamil v Prehn, Noah | 6-1,6-7,10-6 |
| Koszalin, Singles Qualifying M-ITF-POL-02A | 2019/08/06 12:00 | Gajewski, Kamil v Aliaksandr Liaonenka | 6-7,2-6 |
| ITF - M15 Sharm El Sheikh | 2019/04/08 09:00 | Gajewski, Kamil v Bachmaier, Philip | 3-6,2-6 |
| ITF M15 Loule | 2019/03/05 14:30 | Juan Bautista Otegui v Gajewski, Kamil | 6-2,7-5 |
| ITF Poland F6 | 2018/08/07 08:00 | Matuszewski, Piotr v Gajewski, Kamil | 6-3,4-6,6-4 |
| Challenger Sopot Qual | 2018/07/28 10:40 | Haerteis, Johannes v Gajewski, Kamil | 6-3,6-2 |
| ITF Poland F4 | 2018/05/21 07:00 | Gajewski, Kamil v Lahky, Nikolas | 6-3,6-7,1-6 |
| ITF Poland F1 | 2018/04/28 10:30 | Andrzejczak, Bartlomiej v Gajewski, Kamil | 3-6,1-6 |