Stadium: Court 1 Round: 62 Ground: Clay
| ITF M25 Jablonec Nad Nisou | 2021/05/16 10:00 | Krystof Zapsky v Filip Duda | 6-4,3-6,9-11 |
| ITF M25 Praha | 2021/05/09 11:00 | Krystof Zapsky v Peter Goldsteiner | 3-6,4-6 |
| ITF M15 Monastir | 2019/12/15 08:00 | Mohamed Ali Abibsi v Krystof Zapsky | 3-6,4-6 |
| ITF M15 Monastir | 2019/12/01 10:00 | Krystof Zapsky v Julien De Cuyper | 4-6,3-6 |
| ITF M15 Liberec | 2019/10/21 08:00 | Krystof Zapsky v Tim Van Der Horst | 2-6,4-6 |
| ITF M15 Olomouc | 2019/10/14 13:00 | Christian Samuelsson v Krystof Zapsky | 6-1,6-3 |
| ITF M25 Říčany | 2019/09/22 10:30 | Krystof Zapsky v Domagoj Biljesko | 2-6,4-6 |
| ITF M25 Most | 2019/05/29 12:10 | Julian Lenz v Krystof Zapsky | 6-2,6-2 |
| ITF M25 Jablonec Nad Nisou | 2021/05/19 08:00 | Vitaliy Sachko v Daniel Siniakov | 4-6,6-3,6-4 |
| ITF M25 Praha | 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 |
| ITF M15 - Antalya | 2021/04/19 07:00 | Daniel Siniakov v Cheong-Eui Kim | 6-4,3-6,11-9 |
| ITF M15 - Antalya | 2021/04/18 07:00 | Daniel Siniakov v Leon Benedict | 6-2,6-1 |
| ITF M15 - Antalya | 2021/04/11 07:00 | Daniel Siniakov v Taiyo Yamanaka | 1-6,2-6 |