Stadium: Court 2 Round: 25 Ground: Clay
| Challenger Istanbul | 2021/09/12 09:20 | Nick Chappell v Danylo Kalenichenko | 7-6,6-4 |
| Challenger Kyjev | 2021/09/06 08:00 | Danylo Kalenichenko v Ivan Gakhov | 4-6,2-6 |
| Challenger Kyjev | 2021/09/05 09:25 | Otto Virtanen v Danylo Kalenichenko | 6-3,2-6,4-6 |
| ITF M15 Bratislava | 2021/08/29 08:00 | Mate Valkusz v Danylo Kalenichenko | 6-0,6-2 |
| ITF M15 Bratislava | 2021/08/28 09:00 | Pavel Nejedly v Danylo Kalenichenko | 4-6,2-6 |
| ITF M15 Bratislava | 2021/08/27 09:50 | Stefan Palosi v Danylo Kalenichenko | 4-6,5-7 |
| ITF M15 Bratislava | 2021/08/26 08:00 | Gorazd Srbljak v Danylo Kalenichenko | 6-7,0-6 |
| ITF M15 Bratislava | 2021/08/25 08:00 | Lukas Palovic v Danylo Kalenichenko | 2-6,2-6 |
| ITF M25 Praha | 2021/10/04 11:15 | Daniel Paty v Lukas Velik | 6-3,6-4 |
| ITF M25 Praha | 2021/10/03 11:30 | Noah Thurner v Daniel Paty | 3-6,4-6 |
| ITF M25 Pardubice | 2021/09/21 08:00 | Daniel Paty v Stefanos Sakellaridis | 3-6,3-6 |
| ITF M25 Pardubice | 2021/09/20 10:00 | Bekkhan Atlangeriev v Daniel Paty | 6-4,3-6,10-12 |
| ITF M25 Říčany | 2021/09/01 07:55 | Daniel Paty v Alexander Donski | 3-6,3-6 |
| ITF M25 Říčany | 2021/08/31 08:00 | Daniel Paty v Stepan Baum | 6-1,6-0 |
| ITF M25 Říčany | 2021/08/30 09:00 | Daniel Paty v Martin Benes | 6-4,6-3 |
| ITF M25 Prostějov | 2021/08/18 10:30 | Daniel Paty v Nick Chappell | 4-6,3-6 |