Stadium: Ochsenhausen, Germany
| Challenger Series TT | 2023/07/07 10:30 | Hannes Hoermann v Dauud Cheaib | W | 1-3 |
| Challenger Series TT | 2023/07/07 06:30 | Johannes Willeke v Dauud Cheaib | W | 0-3 |
| Challenger Series TT | 2023/07/06 18:30 | Dauud Cheaib v David Reitspies | L | 0-3 |
| Challenger Series TT | 2023/07/06 15:10 | Dauud Cheaib v Liang Qiu | L | 2-3 |
| Challenger Series TT | 2023/07/06 13:10 | Benjamin Fruchart v Dauud Cheaib | W | 2-3 |
| Challenger Series TT | 2023/07/06 10:30 | Mathias Golab v Dauud Cheaib | W | 1-3 |
| Challenger Series TT | 2023/07/06 07:50 | Dennis Klein v Dauud Cheaib | L | 3-1 |
| Challenger Series TT | 2023/06/30 12:50 | Liang Qiu v Dauud Cheaib | W | 0-3 |
| 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 |
| Challenger Series TT | 2023/06/20 07:50 | Sven Happek v Akito Itagaki | L | 3-0 |