| WTT Contender Zagreb Quals | 2023/06/26 09:15 | Jordy Piccolin v Jan Valenta | L | 3-0 |
| TT Star Series | 2023/05/06 13:40 | Jan Valenta v Oleksandr Tymofieiev | L | 0-3 |
| TT Star Series | 2023/05/06 12:26 | Jiri Martinko v Jan Valenta | L | 3-1 |
| TT Star Series | 2023/05/06 11:45 | Jan Valenta v Michal Bankosz | L | 1-3 |
| TT Star Series | 2023/05/06 08:45 | Jan Valenta v Jiri Martinko | L | 0-3 |
| TT Star Series | 2023/05/06 06:35 | Jan Valenta v Oleksandr Tymofieiev | L | 2-3 |
| TT Star Series | 2023/05/05 12:45 | Jan Valenta v Filip Cipin | W | 3-2 |
| TT Star Series | 2023/05/05 10:15 | Jan Valenta v Jakub Kleprlik | W | 3-2 |
| WTT Contender Tunis Quals | 2023/06/21 16:55 | Cedric Meissner v Joe Seyfried | L | 3-2 |
| WTT Contender Tunis Quals | 2023/06/21 11:55 | Joe Seyfried v Abdullah Yigenler | W | 3-0 |
| WTT Contender Tunis Quals | 2023/06/20 12:20 | Joe Seyfried v Hugo Deschamps | W | 3-2 |
| WTT Contender Lagos Quals | 2023/06/13 11:10 | Joe Seyfried v Harmeet Desai | L | 0-3 |
| WTT Contender Lagos Quals | 2023/06/12 11:10 | Joe Seyfried v Dimitrije Levajac | W | 3-0 |
| WTT Feeder Antalya | 2023/03/29 14:45 | Lilian Bardet v Joe Seyfried | L | 3-2 |
| WTT Feeder Amman | 2023/02/02 16:00 | Joe Seyfried v Youzheng Huang | L | 1-3 |
| WTT Feeder Amman | 2023/02/02 09:30 | Joe Seyfried v Ali Alkhadrawi | W | 3-1 |