Stadium: Ochsenhausen, Germany
| Challenger Series TT | 2023/07/13 11:10 | Makoto Nogami v Kirill Fadeev | L | 2-3 |
| Challenger Series TT | 2023/07/13 08:30 | Tobias Slanina v Makoto Nogami | L | 3-1 |
| 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 | 2023/07/13 10:30 | Tobias Slanina v Johannes Willeke | L | 3-1 |
| Challenger Series TT | 2023/07/13 07:50 | Dauud Cheaib v Johannes Willeke | L | 3-1 |
| Challenger Series TT | 2023/07/11 09:50 | Johannes Willeke v Benjamin Fruchart | L | 0-3 |
| Challenger Series TT | 2023/07/11 06:30 | Johannes Willeke v Akos Kishegyi | L | 2-3 |
| Challenger Series TT | 2023/07/10 17:50 | Johannes Willeke v Kestutis Zeimys | L | 2-3 |
| Challenger Series TT | 2023/07/10 16:30 | Johannes Willeke v Armin Alicic | L | 0-3 |
| Challenger Series TT | 2023/07/10 11:50 | Johannes Willeke v Dennis Klein | L | 1-3 |
| Challenger Series TT | 2023/07/10 09:10 | Johannes Willeke v Damian Zech | L | 1-3 |