Stadium: Ochsenhausen, Germany
| Challenger Series TT | 2023/09/14 08:30 | Antonin Gavlas v Dauud Cheaib | L | 3-2 |
| Challenger Series TT | 2023/09/08 12:50 | Dennis Klein v Dauud Cheaib | L | 3-0 |
| Challenger Series TT | 2023/09/08 12:05 | Dauud Cheaib v Kirill Fadeev | L | 1-3 |
| Challenger Series TT | 2023/09/08 09:10 | Rafael Turrini v Dauud Cheaib | W | 0-3 |
| Challenger Series TT | 2023/09/08 07:10 | Dauud Cheaib v Kirill Fadeev | L | 1-3 |
| Challenger Series TT | 2023/09/07 19:10 | Tobias Slanina v Dauud Cheaib | W | 2-3 |
| Challenger Series TT | 2023/09/07 16:30 | Dennis Klein v Dauud Cheaib | L | 3-1 |
| Challenger Series TT | 2023/09/07 13:50 | Dauud Cheaib v Miguel Nunez | W | 3-1 |
| Challenger Series TT | 2023/09/14 06:30 | Jin Ueda v Akito Itagaki | L | 3-1 |
| Challenger Series TT | 2023/07/04 09:50 | Kirill Fadeev v Akito Itagaki | L | 3-0 |
| Challenger Series TT | 2023/07/04 08:30 | Akito Itagaki v Daniel Rinderer | L | 2-3 |
| Challenger Series TT | 2023/07/03 18:30 | David Reitspies v Akito Itagaki | L | 3-2 |
| Challenger Series TT | 2023/07/03 15:50 | Benjamin Fruchart v Akito Itagaki | L | 3-1 |
| Challenger Series TT | 2023/07/03 13:50 | Mathias Golab v Akito Itagaki | W | 1-3 |
| Challenger Series TT | 2023/07/03 09:50 | Dennis Klein v Akito Itagaki | L | 3-0 |
| Challenger Series TT | 2023/07/03 07:10 | Tobias Slanina v Akito Itagaki | L | 3-0 |