Stadium: Ochsenhausen, Germany
| Challenger Series TT | 2023/10/05 11:50 | Daniel Rinderer v Akito Itagaki | W | 3-1 |
| Challenger Series TT | 2023/07/04 08:30 | Akito Itagaki v Daniel Rinderer | W | 2-3 |
| Challenger Series TT | 2023/12/04 11:30 | Daniel Rinderer v Corentin Mazaud | L | 1-3 |
| Challenger Series TT | 2023/12/04 09:30 | Daniel Rinderer v Damian Zech | W | 3-1 |
| Challenger Series TT | 2023/10/31 13:50 | Kirill Fadeev v Daniel Rinderer | W | 1-3 |
| Challenger Series TT | 2023/10/31 13:05 | Mike Hollo v Daniel Rinderer | L | 3-0 |
| Challenger Series TT | 2023/10/31 08:50 | Mike Hollo v Daniel Rinderer | L | 3-1 |
| Challenger Series TT | 2023/10/30 20:50 | Johannes Willeke v Daniel Rinderer | W | 0-3 |
| Challenger Series TT | 2023/10/30 18:50 | Kirill Fadeev v Daniel Rinderer | W | 2-3 |
| Challenger Series TT | 2023/10/30 16:50 | Daniel Rinderer v Alexander Valuch | L | 1-3 |
| 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 |
| Challenger Series TT | 2023/11/21 08:50 | Mike Hollo v Akito Itagaki | L | 3-0 |
| Challenger Series TT | 2023/11/20 20:50 | Abdelbasset Chaichi v Akito Itagaki | W | 0-3 |
| Challenger Series TT | 2023/11/20 18:50 | Jeromy Loffler v Akito Itagaki | L | 3-0 |
| Challenger Series TT | 2023/11/20 16:50 | Akito Itagaki v Norbert Tauler | L | 0-3 |
| Challenger Series TT | 2023/11/20 14:10 | Akito Itagaki v Rafael Turrini | L | 1-3 |
| Challenger Series TT | 2023/11/20 12:10 | Akito Itagaki v Liang Qiu | L | 2-3 |