Stadium: Court 4 Round: 54 Ground: Hardcourt outdoor
| ITF M25 Tsukuba | 2023/03/29 00:30 | Koki Matsuda v Ryotaro Taguchi | 6-3,2-6,2-6 |
| ITF M15 Nishi-Tokyo | 2024/03/23 01:40 | Ryotaro Taguchi v Hikaru Shiraishi | 2-6,6-4,4-6 |
| ITF M15 Nishi-Tokyo | 2024/03/22 00:45 | Yan Bai v Ryotaro Taguchi | 3-6,5-7 |
| ITF M15 Nishi-Tokyo | 2024/03/21 01:00 | Ryotaro Taguchi v Jeamoon Lee | 6-3,5-7,6-3 |
| ITF M15 Nishi-Tokyo | 2024/03/20 00:50 | Ryotaro Taguchi v Tomohiro Masabayashi | 6-3,6-3 |
| ITF M15 Nishi-Tokyo | 2024/03/18 01:00 | Ryotaro Taguchi v Julien De Cuyper | 6-2,6-4 |
| ITF M15 Hinode | 2024/03/16 01:25 | Yan Bai v Ryotaro Taguchi | 6-3,6-2 |
| ITF M15 Hinode | 2024/03/15 01:00 | Yi Zhou v Ryotaro Taguchi | 3-6,3-6 |
| ITF M15 Hinode | 2024/03/14 01:00 | Ryotaro Taguchi v Duckhee Lee | 2-6,6-0,6-3 |
| ITF M15 Tsukuba | 2024/03/24 01:00 | Seon Yong Han v Koki Matsuda | 4-6,4-6 |
| ITF M15 Nishi-Tokyo | 2024/03/20 06:50 | Koki Matsuda v Stefanos Sakellaridis | 7-5,6-7,4-6 |
| ITF M15 Nishi-Tokyo | 2024/03/18 01:00 | Nico Hornitschek v Koki Matsuda | 2-6,3-6 |
| ITF M15 Hinode | 2024/03/13 02:00 | Linang Xiao v Koki Matsuda | 6-3,6-7,7-6 |
| ITF M15 Hinode | 2024/03/11 04:30 | Koki Matsuda v Issei Okamura | 6-4,6-3 |
| UTR Pro Kawaguchi | 2024/03/03 02:00 | Koki Matsuda v Tomohiro Masabayashi | 6-1,1-6,3-6 |
| ITF M15 Yanagawa | 2023/12/27 02:15 | Koki Matsuda v Sora Fukuda | 2-6,6-1,2-6 |
| ITF M15 Yanagawa | 2023/12/21 08:45 | Koki Matsuda v Jumpei Yamasaki | 1-6,6-1,3-6 |