Estadio: Ochsenhausen, Germany
| Challenger Series TT | 2023/03/27 14:30 | Makoto Nogami v Dennis Klein | W | 0-3 |
| Challenger Series TT | 2023/03/27 11:50 | Kirill Fadeev v Dennis Klein | W | 0-3 |
| Challenger Series TT | 2023/03/27 09:50 | Dennis Klein v Dillon Chambers | L | 2-3 |
| Challenger Series TT | 2023/03/27 07:50 | Dennis Klein v Bohdan Sinkevych | W | 3-0 |
| Challenger Series TT | 2023/03/07 14:30 | Dennis Klein v Dauud Cheaib | W | 3-2 |
| Challenger Series TT | 2023/03/07 12:25 | Dennis Klein v Peter Hribar | W | 3-1 |
| Challenger Series TT | 2023/03/07 10:50 | Aljaz Godec v Dennis Klein | W | 1-3 |
| Challenger Series TT | 2023/03/07 09:30 | Dennis Klein v Peter Hribar | L | 2-3 |
| Challenger Series TT | 2023/03/27 15:10 | Bohdan Sinkevych v Jeromy Loffler | L | 3-0 |
| Challenger Series TT | 2023/03/27 12:30 | Makoto Nogami v Jeromy Loffler | W | 1-3 |
| Challenger Series TT | 2023/03/27 11:10 | Marius Henninger v Jeromy Loffler | W | 0-3 |
| Challenger Series TT | 2023/03/27 06:30 | Kirill Fadeev v Jeromy Loffler | W | 1-3 |
| Challenger Series TT | 2023/03/21 10:50 | Jeromy Loffler v Amirreza Abbasi | L | 0-3 |
| Challenger Series TT | 2023/03/21 07:30 | Jeromy Loffler v Rafael Turrini | L | 0-3 |
| Challenger Series TT | 2023/03/20 18:50 | Jeromy Loffler v Siddharta Almeida | W | 3-1 |
| Challenger Series TT | 2023/03/20 17:30 | Jeromy Loffler v Laszlo Magyar | W | 3-1 |