| ITF - Japan F8 | 2015/06/24 02:55 | Hiroyasu Ehara v Oh-Hee Kwon | 6-1,6-0 |
| ITF - Japan F7 | 2015/06/21 02:00 | Hiroyasu Ehara v Yusuke Watanuki | 7-5,4-6,2-6 |
| ITF - Japan F7 | 2015/06/20 03:05 | Hiroyasu Ehara v Jumpei Yamasaki | 6-2,6-2 |
| ITF - Japan F7 | 2015/06/19 04:45 | Hiroyasu Ehara v Ryota Tanuma | 6-2,6-0 |
| ITF - Japan F7 | 2015/06/18 02:15 | Hiroyasu Ehara v Koichi Sano | 6-1,6-3 |
| ITF - Japan F7 | 2015/06/17 01:30 | Hiroyasu Ehara v Yuichiro Inui | 6-4,6-0 |
| ITF - Korea F1 | 2015/05/22 04:00 | Hiroyasu Ehara v Min Hyeok Cho | 0-6,0-6 |
| ITF - Korea F1 | 2015/05/21 07:45 | Ho-Min Kang v Hiroyasu Ehara | 1-6,7-6,3-6 |
| ITF - Japan F8 | 2015/06/24 01:10 | Katsuki Nagao v Masaki Osafune | 6-3,6-0 |
| ITF - Japan F7 | 2015/06/18 02:00 | Ryota Tanuma v Katsuki Nagao | 6-3,6-1 |
| ITF - Japan F7 | 2015/06/17 01:00 | Shunrou Takeshima v Katsuki Nagao | 6-7,3-6 |
| ITF - Japan F6 | 2015/06/10 01:30 | Yosuke Watanuki v Katsuki Nagao | 7-6,6-7,6-4 |
| ITF - Japan F5 | 2015/06/02 01:00 | Ben Mclachlan v Katsuki Nagao | 6-1,6-2 |
| ITF - Guam F1 | 2015/05/30 02:20 | Takao Suzuki v Katsuki Nagao | 2-6,6-4,6-2 |
| ITF - Guam F1 | 2015/05/29 01:40 | Katsuki Nagao v Brendan Moore | 2-6,6-4,6-2 |
| ITF - Guam F1 | 2015/05/25 01:00 | Katsuki Nagao v Olly Sadler | 6-4,6-4 |