Stadium: Court 4 Round: 62 Ground: Clay
| ITF M25 Pardubice | 2021/09/20 10:00 | Bekkhan Atlangeriev v Daniel Paty | 6-4,3-6,10-12 |
| ITF M25 Ricany | 2021/09/01 07:55 | Daniel Paty v Alexander Donski | 3-6,3-6 |
| ITF M25 Ricany | 2021/08/31 08:00 | Daniel Paty v Stepan Baum | 6-1,6-0 |
| ITF M25 Ricany | 2021/08/30 09:00 | Daniel Paty v Martin Benes | 6-4,6-3 |
| ITF M25 Prostejov | 2021/08/18 10:30 | Daniel Paty v Nick Chappell | 4-6,3-6 |
| ITF M25 Prostejov | 2021/08/17 07:55 | Dominik Recek v Daniel Paty | 3-6,7-6,4-6 |
| ITF M25 Prostejov | 2021/08/16 09:35 | Daniel Paty v Samuel Paulovcak | 6-1,4-6,10-5 |
| ITF M25 Wetzlar | 2021/08/03 09:00 | Matthew Romios v Daniel Paty | 6-4,7-5 |
| ITF M25 Pardubice | 2021/09/20 09:00 | Christopher Patzanovsky v Stefanos Sakellaridis | 6-4,1-6,7-10 |
| UTR Pro Tennis Series Ricany | 2021/09/19 07:00 | Lawrence Bataljin v Stefanos Sakellaridis | 0-6,6-6 |
| UTR Pro Tennis Series Ricany | 2021/09/18 10:30 | Stefanos Sakellaridis v Michalis Sakellaridis | 6-2,7-6 |
| UTR Pro Tennis Series Ricany | 2021/09/17 12:00 | Stefanos Sakellaridis v Petr Hajek | 6-7,2-6 |
| UTR Pro Tennis Series Ricany | 2021/09/11 10:30 | Dominik Kellovsky v Stefanos Sakellaridis | 7-5,5-1 |
| UTR Pro Tennis Series Ricany | 2021/09/09 07:30 | Dominik Suc v Stefanos Sakellaridis | 5-7,6-7 |
| UTR Pro Tennis Series Ricany | 2021/09/07 09:00 | Filip Duda v Stefanos Sakellaridis | 4-6,6-4,5-2 |
| ITF M15 Bad Waltersdorf | 2021/08/31 07:00 | Luigi Sorrentino v Stefanos Sakellaridis | 6-0,5-7,10-7 |