Stadium: Court 2 Round: 26 Ground: Clay
| ITF M25 Prague | 2021/10/05 11:05 | Danylo Kalenichenko v Daniel Paty | 6-4,6-1 |
| Challenger Istanbul | 2021/09/12 09:20 | Nick Chappell v Danylo Kalenichenko | 7-6,6-4 |
| Challenger Kyiv | 2021/09/06 08:00 | Danylo Kalenichenko v Ivan Gakhov | 4-6,2-6 |
| Challenger Kyiv | 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 M25 Prague | 2021/10/06 08:55 | Stepan Pecak v Uladzimir Ignatik | 3-6,3-6 |
| Challenger Sibiu | 2021/09/26 07:30 | Uladzimir Ignatik v Oleg Prihodko | 3-6,3-6 |
| Challenger Bucharest | 2021/09/20 08:00 | Ivan Gakhov v Uladzimir Ignatik | 0-6,6-2,6-3 |
| Challenger Bucharest | 2021/09/19 09:45 | David Poljak v Uladzimir Ignatik | 4-6,1-6 |
| Challenger Tulln | 2021/09/07 15:35 | Dennis Novak v Uladzimir Ignatik | 1-6,6-4,6-2 |
| Challenger Tulln | 2021/09/06 10:25 | Uladzimir Ignatik v Tobias Simon | 6-4,4-6,7-5 |
| Challenger Tulln | 2021/09/05 12:25 | Uladzimir Ignatik v David Pichler | 6-2,6-3 |
| ITF M25 Ricany | 2021/09/02 08:00 | Uladzimir Ignatik v Mateus Alves | 2-6,6-4,4-6 |