Ground: Hardcourt outdoor
| UTR Pro Urayasu | 2024/10/19 00:00 | Kai Kawano v Haruki Katsushima | 6-0,6-1 |
| UTR Pro Urayasu | 2024/10/18 05:00 | Haruki Katsushima v Christopher Kosei Ono | 6-1,6-3 |
| UTR Pro Urayasu | 2024/10/17 01:00 | Haruki Katsushima v Yusuke Yoshikawa | 6-4,1-6,1-6 |
| UTR Pro Urayasu | 2024/10/16 00:00 | Takeshi Maruta v Haruki Katsushima | 3-6,4-6 |
| UTR Pro Kawaguchi | 2024/06/29 23:30 | Taiyo Kurata v Haruki Katsushima | 6-3,6-1 |
| UTR Pro Kawaguchi | 2024/06/29 03:40 | Tomislav E Papac v Haruki Katsushima | 7-5,6-1 |
| UTR Pro Kawaguchi | 2024/06/27 04:20 | Ryotaro Matsumura v Haruki Katsushima | 6-1,5-1 |
| UTR Pro Kawaguchi | 2024/06/26 02:00 | Kosuke Nakanishi v Haruki Katsushima | 6-3,1-6,6-2 |
| ITF M25 Kalaburagi | 2024/11/20 06:30 | Kazuki Nishiwaki v S D Prajwal Dev | 2-6,3-6 |
| ITF M25 Mumbai | 2024/11/11 05:30 | Kazuki Nishiwaki v Rishi Reddy | 0-6,4-6 |
| ITF M25 Mumbai | 2024/11/10 04:30 | Kazuki Nishiwaki v Atharvaraj Balani | 6-0,6-0 |
| ITF M25 Bhubaneswar | 2024/11/06 03:30 | Nick Chappell v Kazuki Nishiwaki | 7-5,6-4 |
| ITF M15 Yanagawa | 2024/10/30 05:55 | Kazuki Nishiwaki v Kosuke Shibano | 3-6,3-6 |
| ITF M25 Sapporo | 2024/09/04 00:55 | Kazuki Nishiwaki v Shintaro Imai | 4-6,6-3,5-7 |
| ITF M25 Hong Kong | 2024/08/27 08:20 | Kazuki Nishiwaki v Issei Okamura | 2-6,4-6 |
| Challenger Jinan | 2024/08/18 12:35 | Charles Chen v Kazuki Nishiwaki | 5-7,6-3,6-3 |