Stadium: Court 1 Round: 27 Ground: Hardcourt outdoor
| Challenger Busan | 2023/05/11 06:40 | Yunseong Chung v Gabriel Diallo | 6-7,6-7 |
| Challenger Busan | 2023/05/09 06:15 | Yunseong Chung v Tung-Lin Wu | 7-5,6-2 |
| Challenger Gwangju | 2023/05/05 04:45 | Yunseong Chung v Jason Jung | 6-3,3-6,4-6 |
| Challenger Gwangju | 2023/05/02 06:40 | Yunseong Chung v Kaichi Uchida | 7-6,6-3 |
| Challenger Seoul | 2023/04/29 06:00 | Yunseong Chung v Aleksandar Vukic | 6-7,1-6 |
| Challenger Seoul | 2023/04/28 04:00 | Rinky Hijikata v Yunseong Chung | 2-6,3-6 |
| Challenger Seoul | 2023/04/27 04:00 | Yunseong Chung v Jordan Thompson | 6-4,6-3 |
| Challenger Seoul | 2023/04/26 02:00 | Yunseong Chung v Peter Gojowczyk | 6-2,6-3 |
| UTR Pro Tennis Series Dallas | 2022/12/24 15:00 | Steven Forman v Shunsuke Mitsui | 6-4,4-6,3-6 |
| UTR Pro Tennis Series Dallas | 2022/12/23 21:00 | Christopher Bulus v Shunsuke Mitsui | 4-6,2-6 |
| UTR Pro Tennis Series Dallas | 2022/12/22 21:30 | Shunsuke Mitsui v Stefan Peter Hampe | 6-1,0-0 |
| UTR Pro Tennis Series Dallas | 2022/12/20 20:00 | Shunsuke Mitsui v Lui Maxted | 6-4,5-4 |
| UTR Pro Tennis Series Dallas | 2022/12/19 22:17 | Shunsuke Mitsui v Matthis Ross | 7-6,5-1 |
| UTR Pro Tennis Series Dallas | 2022/12/18 19:00 | Josh Sheehy v Shunsuke Mitsui | 6-3,2-6,2-5 |
| ITF M15 Santo Domingo | 2022/11/22 17:00 | Shunsuke Mitsui v Jesse Flores | 6-7,6-1,2-6 |
| ITF M15 Ithaca | 2022/11/06 14:30 | Menelaos Efstathiou v Shunsuke Mitsui | 4-6,2-6 |