Stadium: Court 1 Round: 25 Ground: Hardcourt outdoor
| ITF M15 Yanagawa | 2023/12/20 03:00 | Kazuma Kawachi v Yuto Oki | 6-2,6-4 |
| ITF M15 Yanagawa | 2023/12/18 03:00 | Yuto Oki v Changli Zhang | 4-6,6-0,10-8 |
| Challenger Matsuyama | 2023/11/05 03:35 | Naoki Nakagawa v Yuto Oki | 6-4,6-2 |
| UTR Pro Miki | 2023/04/16 02:00 | Shinde Yuzuki v Yuto Oki | 4-6,6-0,5-7 |
| UTR Pro Miki | 2023/04/15 08:48 | Wakamatsu Taichi v Yuto Oki | 6-4,3-6,6-6 |
| UTR Pro Miki | 2023/04/14 02:00 | Ren Nakamura v Yuto Oki | 6-3,6-0 |
| UTR Pro Miki | 2023/04/13 00:30 | Umeoka, Yudai v Yuto Oki | 2-6,0-6 |
| UTR Pro Miki | 2023/04/12 05:09 | Brody Nejedly v Yuto Oki | 3-6,0-6 |
| ITF M15 Yanagawa | 2023/12/21 07:30 | Taisei Ichikawa v Kawahashi, Yuta | 6-1,6-2 |
| ITF M15 Yanagawa | 2023/12/20 09:15 | Woobin Shin v Kawahashi, Yuta | 2-6,4-6 |
| ITF M15 Kuala Lumpur | 2023/12/02 02:00 | Kawahashi, Yuta v Alexey Zakharov | 3-6,3-6 |
| ITF M15 Kuala Lumpur | 2023/12/01 01:55 | Andrea Bacaloni v Kawahashi, Yuta | 3-6,0-6 |
| ITF M15 Kuala Lumpur | 2023/11/28 05:40 | Shohei Chikami v Kawahashi, Yuta | 2-6,2-6 |
| ITF M15 Ipoh Perak | 2023/11/23 04:30 | Ryota Tanuma v Kawahashi, Yuta | 6-0,6-4 |
| ITF M15 Ipoh Perak | 2023/11/22 01:30 | Kokoro Isomura v Kawahashi, Yuta | 3-6,6-1,0-6 |
| Kuching, Singles Main, M-ITF-MAS-03A | 2023/11/17 02:00 | Andre Ilagan v Kawahashi, Yuta | 6-3,6-4 |