Stadium: Court 5 Round: 54 Ground: Hardcourt indoor
| ITF M15 Tokyo | 2024/07/01 03:30 | Naoki Tajima v Kohshi Ishibashi | 6-2,6-7,7-10 |
| ITF M15 Hong Kong | 2024/06/19 06:40 | Kasidit Samrej v Naoki Tajima | 6-0,6-3 |
| ITF M15 Anseong | 2024/06/13 01:00 | Naoki Tajima v Chase Ferguson | 0-6,2-6 |
| ITF M15 Anseong | 2024/06/12 01:00 | Woohyuk Chang v Naoki Tajima | 1-6,2-6 |
| ITF M15 Harmon | 2024/06/07 00:00 | Sora Fukuda v Naoki Tajima | 6-2,6-1 |
| ITF M15 Harmon | 2024/06/06 00:00 | Naoki Tajima v Shinji Hazawa | 7-6,6-4 |
| ITF M15 Harmon | 2024/06/05 04:30 | Issei Okamura v Naoki Tajima | 6-3,3-6,3-6 |
| ITF M15 Karuizawa | 2024/05/29 02:00 | Kokoro Isomura v Naoki Tajima | 6-2,6-1 |
| UTR Pro Kawaguchi | 2024/06/29 07:30 | Elijah Cham v Seiya Nakanishi | 1-6,6-4,6-4 |
| UTR Pro Kawaguchi | 2024/06/29 01:00 | Kosuke Nakanishi v Seiya Nakanishi | 6-4,1-6,4-6 |
| UTR Pro Kawaguchi | 2024/06/27 03:27 | Tomislav E Papac v Seiya Nakanishi | 3-6,1-6 |
| UTR Pro Kawaguchi | 2024/06/25 01:30 | Ryotaro Matsumura v Seiya Nakanishi | 6-1,6-0 |
| UTR Pro Kawaguchi | 2024/06/24 05:39 | Seiya Nakanishi v Haruki Katsushima | 6-1,6-3 |
| UTR Pro Kawaguchi | 2024/06/22 05:39 | Seiya Nakanishi v Kosuke Nakanishi | 0-6,5-7 |
| UTR Pro Kawaguchi | 2024/06/22 01:00 | Christopher Kosei Ono v Seiya Nakanishi | 7-6,3-6,3-6 |
| UTR Pro Kawaguchi | 2024/06/20 01:30 | Hikaru Shiraishi v Seiya Nakanishi | 6-4,4-6,7-5 |