Stadium: Court 2 Round: 54 Ground: Clay
| ITF M25 Prague | 2021/10/03 13:00 | Boris Fassbender v Svyatoslav Ilnytskyy | 7-5,6-4 |
| ITF M15 Forbach | 2021/10/01 10:00 | Boris Fassbender v Luke Johnson | 3-6,5-7 |
| ITF M15 Forbach | 2021/09/30 16:20 | Boris Fassbender v Marlon Vankan | 6-2,6-4 |
| ITF M15 Forbach | 2021/09/29 15:35 | Gauthier Onclin v Boris Fassbender | 4-6,4-6 |
| ITF M25 Angers | 2021/04/18 11:00 | Simon Reveniau v Boris Fassbender | 6-4,4-6,10-6 |
| ITF M15 Poitiers | 2021/03/14 13:20 | Hugo Voljacques v Boris Fassbender | 7-6,7-5 |
| ITF M15 Grenoble | 2021/02/07 08:30 | Pierre Delage v Boris Fassbender | 6-4,6-2 |
| ITF M15 Sarreguemines | 2020/10/25 12:30 | Dominik Boehler v Boris Fassbender | 3-6,6-4,10-4 |
| ITF M25 Prague | 2021/10/03 11:30 | Ying Hou v Dominik Recek | 2-6,2-6 |
| ITF M25 Pardubice | 2021/09/23 07:30 | Dominik Recek v Andrew Paulson | 2-6,6-7 |
| ITF M25 Pardubice | 2021/09/21 10:15 | Filip Duda v Dominik Recek | 4-6,2-6 |
| ITF M25 Pardubice | 2021/09/20 10:00 | Matthias Uwe Kask v Dominik Recek | 0-6,0-6 |
| UTR Pro Tennis Series Ricany | 2021/09/19 07:00 | Yann Wojcik v Dominik Recek | 6-3,6-4 |
| UTR Pro Tennis Series Ricany | 2021/09/18 07:30 | Dominik Kellovsky v Dominik Recek | 4-6,6-6 |
| UTR Pro Tennis Series Ricany | 2021/09/17 12:00 | Dominik Recek v Matyas Cerny | 6-2,0-6,3-5 |
| UTR Pro Tennis Series Ricany | 2021/09/15 12:00 | Dominik Recek v Petr Hajek | 7-6,5-3 |