Stadium: Ochsenhausen, Germany
| Challenger Series TT | 2023/06/06 09:10 | Akito Itagaki v Simon Berglund | W | 0-3 |
| 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 |
| Challenger Series TT | 2023/09/14 07:50 | Simon Berglund v Guillaume Alcayde | L | 2-3 |
| Challenger Series TT | 2023/08/11 13:30 | Simon Berglund v Andreas Levenko | L | 2-3 |
| Challenger Series TT | 2023/08/11 11:25 | Simon Berglund v Simon Pfeffer | W | 3-0 |
| Challenger Series TT | 2023/08/11 10:30 | Simon Berglund v Simon Pfeffer | W | 3-0 |
| Challenger Series TT | 2023/08/11 07:50 | Simon Berglund v Florian Bourrassaud | W | 3-1 |
| Challenger Series TT | 2023/09/14 15:10 | Guillaume Alcayde v Akito Itagaki | L | 3-1 |
| Challenger Series TT | 2023/09/14 12:30 | Marco Stefanidis v Akito Itagaki | L | 3-1 |
| Challenger Series TT | 2023/09/14 11:10 | Dauud Cheaib v Akito Itagaki | L | 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 |