Stadium: Ochsenhausen, Germany
| Challenger Series TT | 2023/07/04 10:30 | Tobias Slanina v David Reitspies | L | 0-3 |
| Challenger Series TT | 2023/07/04 07:50 | Tobias Slanina v Benjamin Fruchart | L | 1-3 |
| Challenger Series TT | 2023/07/03 19:10 | Tobias Slanina v Mathias Golab | W | 3-2 |
| Challenger Series TT | 2023/07/03 14:30 | Tobias Slanina v Dennis Klein | L | 1-3 |
| Challenger Series TT | 2023/07/03 12:30 | Tobias Slanina v Daniel Rinderer | L | 1-3 |
| Challenger Series TT | 2023/07/03 09:10 | Kirill Fadeev v Tobias Slanina | L | 3-1 |
| Challenger Series TT | 2023/07/03 07:10 | Tobias Slanina v Akito Itagaki | W | 3-0 |
| Challenger Series TT | 2023/06/23 09:50 | Tobias Slanina v Samuel Amann | W | 3-0 |
| Challenger Series TT | 2023/06/27 10:30 | Makoto Nogami v Benjamin Fruchart | L | 0-3 |
| Challenger Series TT | 2023/06/27 07:50 | Makoto Nogami v Antonin Gavlas | L | 0-3 |
| Challenger Series TT | 2023/06/26 19:10 | Makoto Nogami v Carlo Rossi | L | 1-3 |
| Challenger Series TT | 2023/06/26 14:30 | Makoto Nogami v Damian Zech | W | 3-0 |
| Challenger Series TT | 2023/06/26 12:30 | Makoto Nogami v Liang Qiu | L | 1-3 |
| Challenger Series TT | 2023/06/26 09:10 | Marius Henninger v Makoto Nogami | L | 3-0 |
| Challenger Series TT | 2023/06/26 07:10 | Makoto Nogami v Sven Happek | W | 3-1 |
| Challenger Series TT | 2023/05/05 09:50 | Makoto Nogami v Bohdan Sinkevych | L | 2-3 |