Stadium: Ochsenhausen, Germany
| Challenger Series TT | 2023/05/29 13:10 | Peter Hribar v Karl Zimmermann | W | 3-0 |
| Challenger Series TT | 2023/05/29 11:10 | Peter Hribar v Bohdan Sinkevych | W | 3-0 |
| Challenger Series TT | 2023/05/29 08:30 | Dauud Cheaib v Peter Hribar | W | 2-3 |
| Challenger Series TT | 2023/05/19 12:50 | Peter Hribar v Florian Bluhm | L | 2-3 |
| Challenger Series TT | 2023/05/19 11:25 | Antonin Gavlas v Peter Hribar | L | 3-2 |
| Challenger Series TT | 2023/05/19 09:10 | Marius Henninger v Peter Hribar | W | 0-3 |
| Challenger Series TT | 2023/05/19 07:10 | Peter Hribar v Pekka Pelz | L | 2-3 |
| Challenger Series TT | 2023/05/18 19:10 | Florian Bluhm v Peter Hribar | L | 3-1 |
| Challenger Series TT | 2023/05/29 13:50 | Dauud Cheaib v Ryoichi Yoshiyama | W | 0-3 |
| Challenger Series TT | 2023/05/29 09:50 | Carlo Rossi v Ryoichi Yoshiyama | L | 3-0 |
| Challenger Series TT | 2023/05/29 07:10 | Simon Berglund v Ryoichi Yoshiyama | L | 3-2 |
| Japan - T League | 2023/02/18 03:30 | Kakeru Sone v Ryoichi Yoshiyama | W | 2-3 |
| WTT Contender Amman - Kval 2023 | 2023/02/08 09:30 | Cheng-Jui Kao v Ryoichi Yoshiyama | L | 3-2 |
| WTT Contender Amman - Kval 2023 | 2023/02/07 14:20 | Ryoichi Yoshiyama v Tingyu Wang | W | 3-1 |
| WTT Contender Amman - Kval 2023 | 2023/02/06 15:10 | David Serdaroglu v Ryoichi Yoshiyama | W | 1-3 |
| Japan - T League | 2022/12/16 11:20 | Ryoichi Yoshiyama v Hiroto Shinozuka | L | 1-3 |