stadio: Court 7 Round: 27 Ground: Hardcourt outdoor
| Challenger Yokohama | 2022/10/30 05:55 | Yuki Mochizuki v Takuya Kumasaka | 6-3,6-0 |
| ITF M25 Daegu | 2023/06/08 00:55 | Yuki Mochizuki v Jae Hwan Kim | 7-6,6-3 |
| ITF M25 Daegu | 2023/06/06 06:05 | Yuki Mochizuki v Min Seong Kim | 6-4,6-4 |
| ITF M25 Giacarta | 2023/05/30 06:15 | Yuki Mochizuki v Kokoro Isomura | 6-2,5-7,4-6 |
| 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 Seul | 2023/04/23 03:40 | Tristan Schoolkate v Yuki Mochizuki | 6-7,6-2,6-2 |
| ITF M25 Daegu | 2023/06/06 00:50 | Takuya Kumasaka v Makoto Ochi | 6-3,6-1 |
| ITF M15 Karuizawa | 2023/06/01 02:40 | Jumpei Yamasaki v Takuya Kumasaka | 6-3,6-2 |
| ITF M15 Antalya | 2023/04/26 09:15 | Takuya Kumasaka v Marlon Vankan | 4-6,0-6 |
| ITF M15 Antalya | 2023/04/18 09:10 | Takuya Kumasaka v Konstantin Zhzhenov | 3-6,6-4,7-10 |
| ITF M15 Antalya | 2023/04/17 10:20 | Takuya Kumasaka v Gino Romano | 6-3,6-1 |
| ITF M15 Antalya | 2023/04/16 07:00 | Takuya Kumasaka v Dragos N Cazacu | 6-1,6-1 |
| ITF M15 Antalya | 2023/04/12 07:00 | Juan Pablo Paz v Takuya Kumasaka | 6-1,6-1 |
| ITF M15 Antalya | 2023/04/11 12:45 | Jonathan Mridha v Takuya Kumasaka | 5-7,4-6 |