Stadium: Court 8 Round: 26 Ground: Hardcourt outdoor
| ITF M25 Anseong | 2023/06/22 04:00 | Daisuke Sumizawa v Takuya Kumasaka | 7-5,7-6 |
| ITF M25 Anseong | 2023/06/21 02:00 | Takuya Kumasaka v Daiki Yoshimura | 6-2,6-0 |
| ITF M25 Daegu | 2023/06/10 00:55 | Uisung Park v Takuya Kumasaka | 6-4,6-0 |
| ITF M25 Daegu | 2023/06/09 01:00 | Yuki Mochizuki v Takuya Kumasaka | 7-6,4-6,2-6 |
| 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 M25 Anseong | 2023/06/21 03:50 | Gerard Campana Lee v Kokoro Isomura | 6-4,6-3 |
| ITF M15 Jakarta | 2023/06/14 07:35 | Kokoro Isomura v Yurii Dzhavakian | 1-6,5-7 |
| ITF M25 Jakarta | 2023/06/09 02:30 | Kokoro Isomura v Omar Jasika | 2-6,3-6 |
| ITF M25 Jakarta | 2023/06/08 03:45 | Kokoro Isomura v Corban Crowther | 6-3,3-6,6-0 |
| ITF M25 Jakarta | 2023/06/06 05:30 | Fitriadi M Rifqi v Kokoro Isomura | 3-6,3-6 |
| ITF M25 Jakarta | 2023/06/02 03:00 | Kokoro Isomura v Dominik Palan | 1-6,4-6 |
| ITF M25 Jakarta | 2023/06/01 02:30 | Kokoro Isomura v Tomislav E Papac | 6-2,6-1 |
| ITF M25 Jakarta | 2023/05/30 06:15 | Yuki Mochizuki v Kokoro Isomura | 6-2,5-7,4-6 |