Ground: Hardcourt indoor
| ITF M25 Baotou | 2025/05/07 03:00 | Mukund Sasikumar v Yuichiro Inui | 6-0,0-0 |
| ITF M25 Anning | 2025/05/02 04:00 | Yuichiro Inui v Woobin Shin | 4-6,4-6 |
| ITF M25 Anning | 2025/05/01 02:30 | Akira Santillan v Yuichiro Inui | 3-6,2-6 |
| ITF M25 Anning | 2025/04/30 03:00 | Zekai Li v Yuichiro Inui | 6-4,5-7,4-6 |
| ITF M15 Osaka | 2025/04/23 02:00 | Yuichiro Inui v Sora Fukuda | 4-6,6-3,5-7 |
| ITF M15 Osaka | 2025/04/21 03:30 | Yuichiro Inui v Shu Muto | 6-3,6-3 |
| ITF M15 Osaka | 2025/04/16 08:01 | Tsung-Hao Huang v Yuichiro Inui | 6-2,6-3 |
| ITF M15 Osaka | 2025/04/15 01:00 | Yuichiro Inui v Riku Takahata | 6-3,3-6,0-1 |
| UTR Pro Kawaguchi | 2025/04/27 03:55 | Koyu Yanagi v Noritaka Koizumi | 7-5,6-0 |
| UTR Pro Kawaguchi | 2025/04/26 02:30 | Yuya Ando v Noritaka Koizumi | 5-7,6-2,1-6 |
| UTR Pro Kawaguchi | 2025/04/25 05:50 | Christopher Kosei Ono v Noritaka Koizumi | 3-6,0-6 |
| UTR Pro Kawaguchi | 2025/04/24 07:50 | Jared Horwood v Noritaka Koizumi | 1-6,1-6 |
| UTR Pro Kawaguchi | 2025/04/24 01:30 | Alexey Shtengelov v Noritaka Koizumi | 4-6,6-0,2-6 |
| UTR Pro Kawaguchi | 2025/04/21 03:10 | Yuga Tashiro v Noritaka Koizumi | 6-4,6-3 |
| ITF M25 Takasaki | 2024/09/16 01:00 | Ryota Tanuma v Noritaka Koizumi | 6-2,6-7,10-4 |
| ITF M25 Takasaki | 2024/09/15 01:00 | Seiya Nakanishi v Noritaka Koizumi | 5-7,4-6 |