Stadium: Court 3 Round: 44 Ground: Clay
| ITF M15 Novomoskovsk | 2020/09/05 07:00 | Oleksii Krutykh v Marek, Wojciech | 6-3,6-2 |
| ITF M15 Novomoskovsk | 2020/09/04 07:00 | Eric Vanshelboim v Marek, Wojciech | 3-6,6-3,5-7 |
| ITF M15 Novomoskovsk | 2020/09/03 07:00 | Marek, Wojciech v Vladyslav Orlov | 1-6,6-2,6-3 |
| ITF M15 Novomoskovsk | 2020/09/02 07:00 | Arvid Nordquist v Marek, Wojciech | 6-4,3-6,0-6 |
| ITF M25 Poznan | 2020/08/27 12:25 | Marek, Wojciech v Manuel Guinard | 4-6,3-6 |
| ITF M25 Poznan | 2020/08/26 13:15 | Marek, Wojciech v Adrian Oetzbach | 0-6,6-4,6-3 |
| Vogau, Singles Qualifying M-ITF-AUT-04A | 2020/08/16 08:00 | Gonzalo Lama v Marek, Wojciech | 6-3,6-3 |
| Polish National Tour | 2020/07/17 14:55 | Marek, Wojciech v Kamil Majchrzak | 1-6,3-6 |
| Milovice, Singles M-ITF-CZE-10A | 2019/11/12 12:25 | Daniel Siniakov v Aichhorn, Jakob | 6-7,0-6 |
| ITF M15 Prague | 2019/11/07 10:55 | Daniel Siniakov v Oleksii Krutykh | 6-7,2-6 |
| ITF M15 Prague | 2019/11/06 15:15 | Boehler, Dominik v Daniel Siniakov | 6-3,5-7,6-7 |
| ITF M15 Prague | 2019/11/05 10:15 | Daniel Siniakov v Federico Arnaboldi | 6-4,6-1 |
| ITF M15 Prague | 2019/11/04 09:00 | Khomentovskiy, Matvey v Daniel Siniakov | 1-6,2-6 |
| ITF M15 Opava | 2019/10/30 16:35 | Stepanek, Antonin v Daniel Siniakov | 7-6,6-3 |
| Prostejov, Czech Republic | 2019/06/02 14:50 | Wang, Tak Khunn v Daniel Siniakov | 6-4,6-1 |