| Challenger Series TT | 01/03 09:30 | - | Pylyp Koloidenko v Dominik Keller | L | 3-0 | |
| Challenger Series TT | 01/02 18:00 | - | Erik Huzsvar v Dominik Keller | L | 3-0 | |
| Challenger Series TT | 01/02 16:30 | - | Dominik Keller v Herman Debizhansky | L | 0-3 | |
| Challenger Series TT | 01/02 14:00 | - | Dominik Keller v Melih Ozdemir | W | 3-2 | |
| Challenger Series TT | 01/02 12:30 | - | Jaime Lama v Dominik Keller | L | 3-0 | |
| Challenger Series TT | 01/02 10:30 | - | Kestutis Zeimys v Dominik Keller | L | 3-0 | |
| Challenger Series TT | 01/02 08:30 | - | Damian Zech v Dominik Keller | L | 3-0 |