Stadium: Ochsenhausen, Germany
| Challenger Series TT | 2023/12/04 16:50 | Damian Zech v Akito Itagaki | L | 1-3 |
| Challenger Series TT | 2023/05/05 07:50 | Damian Zech v Akito Itagaki | L | 0-3 |
| Challenger Series TT | 2023/12/18 08:50 | Damian Zech v Benjamin Fruchart | L | 0-3 |
| Challenger Series TT | 2023/12/05 08:50 | Alexander Valuch v Damian Zech | L | 3-0 |
| Challenger Series TT | 2023/12/04 20:50 | Dauud Cheaib v Damian Zech | L | 3-1 |
| Challenger Series TT | 2023/12/04 18:50 | Carlo Rossi v Damian Zech | L | 3-0 |
| Challenger Series TT | 2023/12/04 16:50 | Damian Zech v Akito Itagaki | L | 1-3 |
| Challenger Series TT | 2023/12/04 14:10 | Damian Zech v Corentin Mazaud | L | 0-3 |
| Challenger Series TT | 2023/12/04 12:10 | Damian Zech v Rafael Turrini | L | 0-3 |
| Challenger Series TT | 2023/12/04 09:30 | Daniel Rinderer v Damian Zech | L | 3-1 |
| Challenger Series TT | 2023/12/18 08:10 | Liang Qiu v Akito Itagaki | L | 3-1 |
| Challenger Series TT | 2023/12/05 10:50 | Carlo Rossi v Akito Itagaki | L | 3-0 |
| Challenger Series TT | 2023/12/05 09:30 | Akito Itagaki v Rafael Turrini | L | 0-3 |
| Challenger Series TT | 2023/12/04 19:30 | Corentin Mazaud v Akito Itagaki | L | 3-1 |
| Challenger Series TT | 2023/12/04 16:50 | Damian Zech v Akito Itagaki | W | 1-3 |
| Challenger Series TT | 2023/12/04 14:50 | Daniel Rinderer v Akito Itagaki | L | 3-1 |
| Challenger Series TT | 2023/12/04 10:50 | Dauud Cheaib v Akito Itagaki | L | 3-0 |
| Challenger Series TT | 2023/12/04 08:10 | Alexander Valuch v Akito Itagaki | L | 3-1 |