| WTT - Contender - Zagrebe - Qualificação | 2023/06/27 18:40 | Ganghyeon Park v Ryoichi Yoshiyama | W | 1-3 |
| WTT - Contender - Zagrebe - Qualificação | 2023/06/26 18:20 | Bastian Rembert v Ryoichi Yoshiyama | W | 1-3 |
| Challenger Series TT | 2023/05/30 12:10 | Simon Berglund v Ryoichi Yoshiyama | W | 2-3 |
| Challenger Series TT | 2023/05/30 10:45 | Ryoichi Yoshiyama v Carlo Rossi | W | 3-1 |
| Challenger Series TT | 2023/05/30 08:30 | Anton Limonov v Ryoichi Yoshiyama | W | 1-3 |
| Challenger Series TT | 2023/05/29 17:10 | Karl Zimmermann v Ryoichi Yoshiyama | W | 2-3 |
| Challenger Series TT | 2023/05/29 15:10 | Peter Hribar v Ryoichi Yoshiyama | W | 1-3 |
| Challenger Series TT | 2023/05/29 13:50 | Dauud Cheaib v Ryoichi Yoshiyama | W | 0-3 |
| WTT - Contender - Zagrebe - Qualificação | 2023/06/27 19:05 | Chien-An Chen v Dongsoo Kang | W | 0-3 |
| WTT - Contender - Zagrebe - Qualificação | 2023/06/26 19:10 | Balazs Lei v Dongsoo Kang | W | 1-3 |
| WTT - Contender - Tunes | 2023/06/22 10:10 | Yanning Liang v Dongsoo Kang | L | 3-0 |
| WTT - Contender - Lagos | 2023/06/15 10:10 | Jonathan Groth v Dongsoo Kang | L | 3-1 |
| WTT - Star Contender - Banguecoque | 2023/04/26 06:40 | Anton Kallberg v Dongsoo Kang | L | 3-0 |
| WTT - Star Contender - Banguecoque | 2023/04/25 07:00 | Dongsoo Kang v Joao Geraldo | W | 3-2 |
| WTT - Star Contender - Banguecoque - Qualificação | 2023/04/24 11:15 | Hon Ming Li v Dongsoo Kang | W | 0-3 |
| WTT - Star Contender - Banguecoque - Qualificação | 2023/04/24 05:00 | Yan-Cheng Huang v Dongsoo Kang | W | 1-3 |