| Challenger Series TT | 2023/01/30 13:30 | Makoto Nogami v Samuel Amann | L | 3-0 |
| Challenger Series TT | 2022/08/25 17:10 | Makoto Nogami v Samuel Amann | L | 3-0 |
| Challenger Series TT | 2023/08/11 08:30 | Zengyi Wang v Samuel Amann | L | 3-1 |
| Challenger Series TT | 2023/08/11 07:10 | Dauud Cheaib v Samuel Amann | L | 3-0 |
| Challenger Series TT | 2023/08/10 17:10 | Andreas Levenko v Samuel Amann | L | 3-0 |
| Challenger Series TT | 2023/08/10 15:10 | Simon Pfeffer v Samuel Amann | L | 3-0 |
| Challenger Series TT | 2023/08/10 12:30 | Simon Berglund v Samuel Amann | L | 3-0 |
| Challenger Series TT | 2023/08/10 11:10 | Florian Bourrassaud v Samuel Amann | L | 3-0 |
| Challenger Series TT | 2023/08/10 06:30 | Tobias Slanina v Samuel Amann | L | 3-0 |
| Challenger Series TT | 2023/07/11 08:30 | Benjamin Fruchart v Samuel Amann | L | 3-0 |
| Challenger Series TT | 2023/07/14 07:50 | Benjamin Fruchart v Makoto Nogami | W | 2-3 |
| Challenger Series TT | 2023/07/13 19:50 | Dauud Cheaib v Makoto Nogami | L | 3-2 |
| Challenger Series TT | 2023/07/13 17:50 | Michael Engelhardt v Makoto Nogami | L | 3-1 |
| Challenger Series TT | 2023/07/13 15:50 | Makoto Nogami v Antonin Gavlas | L | 1-3 |
| Challenger Series TT | 2023/07/13 13:10 | Makoto Nogami v Johannes Willeke | L | 1-3 |
| 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 |