Round: 54 Ground: Hardcourt outdoor
| ITF - Japan F1 | 2016/03/10 02:45 | Katsuki Nagao v Yusuke Watanuki | 1-6,6-2,1-6 |
| ITF - Japan F1 | 2016/03/07 01:00 | Katsuki Nagao v Soichiro Moritani | 6-4,7-6 |
| ITF - Japan F1 | 2016/03/05 01:00 | Katsuki Nagao v Masaya Kobayashi | 6-2,2-6,6-3 |
| ITF - Japan F8 | 2015/06/27 01:00 | Yasutaka Uchiyama v Katsuki Nagao | 7-6,6-3 |
| ITF - Japan F8 | 2015/06/25 04:25 | Hiroyasu Ehara v Katsuki Nagao | 4-6,3-6 |
| 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 F1 | 2016/03/06 03:00 | Ken Onoda v Tung-Lin Wu | 3-6,4-6 |
| ITF - Japan F1 | 2016/03/05 03:00 | Ken Onoda v Kousuke Ogura | 7-6,7-5 |
| ITF - Türkei F6 | 2016/02/11 16:45 | Ken Onoda v Alexander Bublik | 1-6,6-7 |
| ITF - Türkei F6 | 2016/02/09 08:00 | Ken Onoda v Anton Desyatnik | 6-1,6-1 |
| ITF - Türkei F4 | 2016/01/24 09:30 | Milan Drinic v Ken Onoda | 6-4,0-6,6-4 |
| ITF - China F12 - Qualifikation | 2015/08/02 07:30 | Ken Onoda v YiShuo Fan | 6-1,6-1 |
| ITF - Hong Kong F3 | 2015/06/26 02:00 | Ken Onoda v Jui-Chen Hung | 0-6,1-6 |
| ITF - Hong Kong F3 | 2015/06/25 07:55 | Ken Onoda v Aaron Addison | 3-6,6-2,6-1 |