Stadium: Court 7 Round: 62 Ground: Hardcourt outdoor
| ITF M25 Monastir | 2022/01/19 10:05 | Constantin Frantzen v Moez Echargui | 2-6,2-6 |
| ITF M25 Monastir | 2022/01/17 11:40 | Zi Hui Chen v Constantin Frantzen | 0-6,2-6 |
| ITF M25 Monastir | 2022/01/16 12:30 | Tobias Brutscher v Constantin Frantzen | 2-6,1-6 |
| ITF M25 Austin | 2021/11/17 20:00 | Eliot Spizzirri v Constantin Frantzen | 6-3,6-3 |
| ITF M25 Austin | 2021/11/16 16:50 | Constantin Frantzen v Miguel Angel Cabrera | 6-2,6-4 |
| ITF M25 Austin | 2021/11/15 18:00 | Nevin Arimilli v Constantin Frantzen | 4-6,4-6 |
| ITF M25 Harlingen | 2021/11/09 15:00 | Noah Schachter v Constantin Frantzen | 7-6,6-2 |
| ITF M25 Fayetteville | 2021/11/02 14:00 | Constantin Frantzen v Mathieu Scaglia | 4-6,5-7 |
| ITF M25 Monastir | 2022/01/20 08:00 | Gleb Sakharov v Dominik Recek | 6-3,4-6,7-6 |
| ITF M25 Monastir | 2022/01/19 08:00 | Dominik Recek v Matas Vasiliauskas | 6-4,6-2 |
| ITF M25 Monastir | 2022/01/17 10:30 | Dominik Recek v Elgin Khoeblal | 6-2,6-2 |
| ITF M25 Monastir | 2022/01/16 12:30 | Dominik Recek v Josh Reid | 6-3,6-0 |
| ITF M15 Ostrava | 2021/11/25 13:30 | Buvaysar Gadamauri v Dominik Recek | 6-3,6-2 |
| ITF M15 Ostrava | 2021/11/23 09:00 | Dominik Recek v Simon Malis | 7-5,6-1 |
| ITF M15 Ostrava | 2021/11/22 09:00 | Dominik Recek v Sizya Ernest Kivanda | 6-4,6-2 |
| ITF M15 Ostrava | 2021/11/21 12:00 | Dominik Recek v Stepan Mruzek | 6-1,6-0 |