| Challenger Series TT | 05/30 08:30 | - | Anton Limonov v Ryoichi Yoshiyama | W | 1-3 | |
| Challenger Series TT | 05/30 08:30 | - | Ryoichi Yoshiyama v Bohdan Sinkevych | - | Cancelled | |
| Challenger Series TT | 05/29 17:10 | - | Karl Zimmermann v Ryoichi Yoshiyama | W | 2-3 | |
| Challenger Series TT | 05/29 15:10 | - | Peter Hribar v Ryoichi Yoshiyama | W | 1-3 | |
| Challenger Series TT | 05/29 13:50 | - | Dauud Cheaib v Ryoichi Yoshiyama | W | 0-3 | |
| Challenger Series TT | 05/29 09:50 | - | Carlo Rossi v Ryoichi Yoshiyama | L | 3-0 | |
| Challenger Series TT | 05/29 07:10 | - | Simon Berglund v Ryoichi Yoshiyama | L | 3-2 | |
| Japan T League | 02/18 03:30 | - | Kakeru Sone v Ryoichi Yoshiyama | W | 2-3 | |
| WTT Contender Amman Quals 2023 | 02/08 09:30 | - | Cheng-Jui Kao v Ryoichi Yoshiyama | L | 3-2 | |
| WTT Contender Amman Quals 2023 | 02/07 14:20 | - | Ryoichi Yoshiyama v Tingyu Wang | W | 3-1 | |
| WTT Contender Amman Quals 2023 | 02/06 15:10 | - | David Serdaroglu v Ryoichi Yoshiyama | W | 1-3 | |
| Japan T League | 12/16 11:20 | - | Ryoichi Yoshiyama v Hiroto Shinozuka | L | 1-3 | |
| WTT Feeder Olomouc | 08/25 17:10 | - | Ryoichi Yoshiyama v Mihai Bobocica | L | 2-3 | |
| WTT Contender Lima | 06/18 16:45 | - | Dang Qiu v Ryoichi Yoshiyama | L | 3-0 | |
| WTT Contender Lima | 06/18 00:15 | - | Jonathan Groth v Ryoichi Yoshiyama | W | 2-3 | |
| WTT Contender Lima | 06/16 20:40 | 5 | Ryoichi Yoshiyama v Liam Pitchford | W | 3-1 | |
| WTT Contender Lima Quals | 06/15 22:00 | - | Ryoichi Yoshiyama v Yi-Hsin Feng | W | 3-1 | |
| WTT Contender Lima Quals | 06/15 15:30 | - | Satoshi Aida v Ryoichi Yoshiyama | W | 2-3 | |
| WTT Contender Lima Quals | 06/14 20:00 | - | Angel Naranjo v Ryoichi Yoshiyama | W | 0-3 | |
| Others | 12/03 19:29 | - | Taehyun Kim v Ryoichi Yoshiyama | W | 1-3 | |
| Japan T League | 02/21 03:30 | - | Mizuki Oikawa v Ryoichi Yoshiyama | L | 3-0 |