Stadium: Ochsenhausen, Germany
| Challenger Series TT | 2025/04/10 16:00 | Boris Brnovic v Matthias Danzer | L | 0-3 |
| Challenger Series TT | 2025/04/10 12:30 | Boris Brnovic v Tom Colvin | L | 1-3 |
| Challenger Series TT | 2025/04/10 11:00 | Boris Brnovic v Viktor Yefimov | L | 0-3 |
| Challenger Series TT | 2025/04/10 08:30 | Pylyp Koloidenko v Boris Brnovic | L | 3-0 |
| Challenger Series TT | 2025/04/10 07:00 | Boris Brnovic v Dennis Klein | L | 0-3 |
| Challenger Series TT | 2025/01/17 09:00 | Johannes Willeke v Boris Brnovic | L | 3-2 |
| Challenger Series TT | 2025/01/17 08:00 | Boris Brnovic v Jeromy Loffler | L | 0-3 |
| Challenger Series TT | 2025/01/16 16:30 | Damian Zech v Boris Brnovic | W | 2-3 |
| Challenger Series TT | 2025/05/01 13:30 | Bennet Robben v Dennis Klein | L | 0-3 |
| Challenger Series TT | 2025/05/01 11:30 | Bennet Robben v Dhairya Parmar | L | 2-3 |
| Challenger Series TT | 2025/05/01 10:00 | Bennet Robben v Guilherme Teodoro | L | 0-3 |
| Challenger Series TT | 2025/05/01 08:00 | Liang Qiu v Bennet Robben | L | 3-0 |