Stadium: Ochsenhausen, Germany
| Challenger Series TT | 2023/01/13 08:10 | Dillon Chambers v Makoto Nogami | W | 1-3 |
| Challenger Series TT | 2023/03/14 09:30 | Peter Hribar v Makoto Nogami | W | 0-3 |
| Challenger Series TT | 2023/03/14 08:10 | Ahmed El-Mahdy v Makoto Nogami | L | 3-1 |
| Challenger Series TT | 2023/03/13 18:10 | Sven Happek v Makoto Nogami | L | 3-2 |
| Challenger Series TT | 2023/03/13 16:10 | Dauud Cheaib v Makoto Nogami | L | 3-2 |
| Challenger Series TT | 2023/03/13 13:30 | Felix Kohler v Makoto Nogami | L | 3-2 |
| Challenger Series TT | 2023/03/13 12:10 | Anton Limonov v Makoto Nogami | L | 3-0 |
| Challenger Series TT | 2023/03/13 07:30 | Michael Engelhardt v Makoto Nogami | L | 3-0 |
| Challenger Series TT | 2023/02/10 10:50 | Makoto Nogami v Bohdan Sinkevych | W | 3-1 |
| Challenger Series TT | 2023/03/10 11:30 | Karl Zimmermann v Dillon Chambers | W | 1-3 |
| Challenger Series TT | 2023/03/10 07:30 | Kirill Fadeev v Dillon Chambers | L | 3-0 |
| Challenger Series TT | 2023/03/09 19:30 | Dillon Chambers v Dimitrije Levajac | W | 3-0 |
| Challenger Series TT | 2023/03/09 16:10 | Dillon Chambers v Samuel Amann | W | 3-2 |
| Challenger Series TT | 2023/03/09 14:10 | Guilherme Teodoro v Dillon Chambers | L | 3-2 |
| Challenger Series TT | 2023/03/09 11:30 | Thibault Poret v Dillon Chambers | L | 3-1 |
| Challenger Series TT | 2023/03/09 08:50 | Damian Zech v Dillon Chambers | W | 1-3 |
| Challenger Series TT | 2023/03/03 10:10 | Albert Vilardell v Dillon Chambers | L | 3-0 |