Stadium: Court 5 Round: 25 Ground: Hardcourt outdoor
| Challenger Busan | 2023/05/09 08:00 | Max Purcell v Yuki Mochizuki | 6-3,6-3 |
| Challenger Busan | 2023/05/08 03:40 | Yuki Mochizuki v Tatsuma Ito | 6-4,4-6,6-2 |
| Challenger Busan | 2023/05/07 02:30 | Edan Leshem v Yuki Mochizuki | 7-5,3-6,1-6 |
| Challenger Gwangju | 2023/04/30 03:50 | Yuki Mochizuki v Hiroki Moriya | 5-7,2-6 |
| Challenger Seoul | 2023/04/23 03:40 | Tristan Schoolkate v Yuki Mochizuki | 6-7,6-2,6-2 |
| ITF M25 Jakarta | 2023/04/19 02:30 | Yuki Mochizuki v Tomohiro Masabayashi | 6-2,2-6,4-6 |
| ITF M25 Jakarta | 2023/04/13 02:30 | Tristan Schoolkate v Yuki Mochizuki | 4-6,6-2,6-1 |
| ITF M25 Jakarta | 2023/04/11 06:20 | Matthew Dellavedova v Yuki Mochizuki | 2-6,2-6 |
| ITF M15 Monastir | 2023/05/10 08:30 | Kokoro Isomura v Gage Brymer | 6-2,3-6,1-6 |
| ITF M15 Monastir | 2023/05/02 12:50 | Kokoro Isomura v Pawel Juszczak | 6-7,4-6 |
| ITF M15 Monastir | 2023/04/25 12:30 | Kokoro Isomura v Andrea Guerrieri | 6-1,3-6,3-6 |
| ITF M15 Monastir | 2023/04/19 08:30 | Arthur Bouquier v Kokoro Isomura | 7-5,4-6,6-1 |
| ITF M15 Monastir | 2023/04/13 08:30 | Li Tu v Kokoro Isomura | 6-1,6-3 |
| ITF M15 Monastir | 2023/04/11 08:30 | Kokoro Isomura v Louis Dussin | 4-6,6-4,7-6 |
| ITF M25 Tsukuba | 2023/03/30 03:05 | Kokoro Isomura v Sho Shimabukuro | 3-6,4-6 |
| ITF M25 Tsukuba | 2023/03/28 06:00 | Kokoro Isomura v Zhe Li | 6-3,6-7,6-3 |