| Challenger Series TT | 2023/05/01 11:50 | Dennis Klein v Nico Longhino | W | 3-0 |
| Challenger Series TT | 2023/05/01 09:10 | Dennis Klein v Kirill Fadeev | W | 3-0 |
| Challenger Series TT | 2023/05/01 06:30 | Dennis Klein v Michael Engelhardt | W | 3-0 |
| Challenger Series TT | 2023/04/07 12:50 | Yannick Vostes v Dennis Klein | W | 1-3 |
| Challenger Series TT | 2023/04/07 12:05 | Florian Bourrassaud v Dennis Klein | L | 3-0 |
| Challenger Series TT | 2023/04/07 09:10 | Dennis Klein v Yannick Vostes | W | 3-0 |
| Challenger Series TT | 2023/04/06 19:50 | Dennis Klein v Florian Bourrassaud | L | 2-3 |
| Challenger Series TT | 2023/04/06 17:10 | Dennis Klein v Makoto Nogami | W | 3-1 |
| Challenger Series TT | 2023/05/01 13:50 | Alexander Sverdlik v Benjamin Fruchart | L | 0-3 |
| Challenger Series TT | 2023/05/01 10:30 | Alexander Sverdlik v Snehit Suravajjula | L | 0-3 |
| Challenger Series TT | 2023/05/01 08:30 | Alexander Sverdlik v George Downing | W | 3-0 |