Stadium: Ochsenhausen, Germany
| Challenger Series TT | 2023/06/08 08:30 | Antonin Gavlas v Akito Itagaki | W | 3-0 |
| Challenger Series TT | 2023/06/05 19:50 | Akito Itagaki v Antonin Gavlas | W | 0-3 |
| Challenger Series TT | 2023/09/14 17:50 | Marco Stefanidis v Antonin Gavlas | W | 0-3 |
| Challenger Series TT | 2023/09/14 15:50 | Jin Ueda v Antonin Gavlas | L | 3-0 |
| Challenger Series TT | 2023/09/14 13:50 | Antonin Gavlas v Kirill Fadeev | W | 3-0 |
| Challenger Series TT | 2023/09/14 10:30 | Antonin Gavlas v Guillaume Alcayde | W | 3-2 |
| Challenger Series TT | 2023/09/14 08:30 | Antonin Gavlas v Dauud Cheaib | W | 3-2 |
| Challenger Series TT | 2023/09/12 13:30 | Antonin Gavlas v Amirreza Abbasi | L | 1-3 |
| Challenger Series TT | 2023/09/12 11:25 | Antonin Gavlas v Jeromy Loffler | W | 3-1 |
| Challenger Series TT | 2023/09/12 09:10 | Guillaume Alcayde v Antonin Gavlas | W | 0-3 |
| Challenger Series TT | 2023/09/14 16:30 | Simon Berglund v Akito Itagaki | L | 3-0 |
| 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 |