Results
| UTR Pro Kawaguchi | 04/26 05:35 | 28 | Masaki Tonaka v Koyu Yanagi | 4-6,3-6 | |
| UTR Pro Kawaguchi | 04/25 03:00 | - | Seiya Nakanishi v Masaki Tonaka | 6-7,6-3,7-5 | |
| UTR Pro Kawaguchi | 04/24 09:30 | - | Ko Nagashima v Masaki Tonaka | 6-3,5-7,2-6 | |
| UTR Pro Kawaguchi | 04/24 02:40 | - | Hikaru Takahashi v Masaki Tonaka | 3-6,0-6 | |
| UTR Pro Kawaguchi | 04/21 01:00 | - | Ryota Tanuma v Masaki Tonaka | 7-6,6-2 | |
| UTR Pro Yokohama | 03/14 01:00 | 29 |
Masaki Tonaka v
Atomeromu
|
6-7,3-6 | |
| UTR Pro Yokohama | 03/13 01:00 | 28 | Goki Niinomi v Masaki Tonaka | 4-6,4-6 | |
| UTR Pro Yokohama | 03/11 03:45 | - | Kai Kawano v Masaki Tonaka | Walkover | |
| UTR Pro Yokohama | 03/10 05:20 | - | Ryotaro Matsumura v Masaki Tonaka | 6-4,6-3 | |
| UTR Pro Yokohama | 03/10 01:35 | - | Christopher Kosei Ono v Masaki Tonaka | 2-6,6-3,3-6 |
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