Stadium: COURT 1 Round: 62 Ground: Clay
| Polish National Tour | 2020/08/23 12:30 | Daniel Michalski v Kamil Gajewski | 6-7,7-6,7-6 |
| Polish National Tour | 2020/08/23 08:00 | Kamil Gajewski v Jasza Szajrych | 6-4,6-1 |
| Polish National Tour | 2020/08/21 11:55 | Kamil Gajewski v Piotr Matuszewski | 7-6,6-4 |
| Polish National Tour | 2020/08/15 16:00 | Kamil Gajewski v Mikolaj Borkowski | 6-4,6-3 |
| Polish National Tour | 2020/08/15 07:30 | Kamil Gajewski v Mikolaj Szmyrgala | 6-3,6-2 |
| Polish National Tour | 2020/07/29 14:50 | Kamil Gajewski v Filip Kolasinski | 7-5,6-7,4-6 |
| Polish National Tour | 2020/07/24 08:00 | Kamil Gajewski v Gabriel Matuszewski | 6-4,1-6,2-6 |
| Polish National Tour | 2020/07/16 08:30 | Kacper Zuk v Kamil Gajewski | 6-2,6-3 |
| Challenger Prostejov | 2021/06/15 08:30 | Daniel Siniakov v Sebastian Baez | 1-6,0-6 |
| ITF M25 Most | 2021/05/24 08:00 | Adan Freire Da Silva v Daniel Siniakov | 6-3,7-6 |
| ITF M25 Most | 2021/05/23 14:00 | Krystof Zapsky v Daniel Siniakov | 4-6,3-6 |
| ITF M25 Jablonec Nad Nisou | 2021/05/19 08:00 | Vitaliy Sachko v Daniel Siniakov | 4-6,6-3,6-4 |
| ITF M25 Prague | 2021/05/09 08:30 | Daniel Siniakov v Jakub Beran | 5-7,4-6 |
| ITF M15 Antalya | 2021/04/25 07:00 | Daniel Siniakov v Dan Alexandru Tomescu | 1-6,1-6 |
| ITF M15 Antalya | 2021/04/21 08:45 | Paul Woerner v Daniel Siniakov | 6-4,6-3 |
| ITF M15 Antalya | 2021/04/20 07:00 | Michel Vernier v Daniel Siniakov | 0-6,7-6,4-10 |