Stadium: Ochsenhausen, Germany
| Challenger Series TT | 2023/09/14 16:30 | Simon Berglund v Akito Itagaki | L | 3-0 |
| Challenger Series TT | 2023/06/06 09:10 | Akito Itagaki v Simon Berglund | L | 0-3 |
| Challenger Series TT | 2023/10/16 07:50 | Akito Itagaki v Jong-Eon Yeon | W | 3-2 |
| Challenger Series TT | 2023/10/06 09:10 | Akito Itagaki v Sushmit Sriram | L | 0-3 |
| Challenger Series TT | 2023/10/05 19:50 | Akito Itagaki v Miguel Nunez | L | 0-3 |
| Challenger Series TT | 2023/10/05 17:10 | Akito Itagaki v Hannes Hormann | W | 3-1 |
| Challenger Series TT | 2023/10/05 14:30 | Sven Happek v Akito Itagaki | W | 2-3 |
| Challenger Series TT | 2023/10/05 11:50 | Daniel Rinderer v Akito Itagaki | L | 3-1 |
| Challenger Series TT | 2023/10/05 09:50 | Akito Itagaki v Alexander Valuch | L | 0-3 |
| Challenger Series TT | 2023/10/05 07:50 | Akito Itagaki v Guillaume Alcayde | L | 1-3 |
| Challenger Series TT | 2023/10/16 07:10 | Dauud Cheaib v Simon Berglund | W | 1-3 |
| Challenger Series TT | 2023/09/15 12:50 | Jin Ueda v Simon Berglund | L | 3-0 |
| Challenger Series TT | 2023/09/15 11:25 | Simon Berglund v Antonin Gavlas | W | 3-1 |
| Challenger Series TT | 2023/09/15 08:30 | Simon Berglund v Antonin Gavlas | W | 3-2 |
| Challenger Series TT | 2023/09/14 16:30 | Simon Berglund v Akito Itagaki | W | 3-0 |
| Challenger Series TT | 2023/09/14 14:30 | Marco Stefanidis v Simon Berglund | W | 0-3 |
| Challenger Series TT | 2023/09/14 11:50 | Jin Ueda v Simon Berglund | L | 3-1 |
| Challenger Series TT | 2023/09/14 09:50 | Simon Berglund v Kirill Fadeev | W | 3-0 |