Round: 25 Ground: Hardcourt outdoor
| ITF Japan F2 | 2016/03/13 01:00 | Nagao, Katsuki v 오노다, 켄 | 6-3,5-7,6-4 |
| ITF Japan F1 | 2016/03/10 02:45 | Nagao, Katsuki v 와타누키, 유스케 | 1-6,6-2,1-6 |
| ITF Japan F1 | 2016/03/07 01:00 | Nagao, Katsuki v 모리타니, 소이치로 | 6-4,7-6 |
| ITF Japan F1 | 2016/03/05 01:00 | Nagao, Katsuki v 코바야시, 마사야 | 6-2,2-6,6-3 |
| ITF Japan F8 | 2015/06/27 01:00 | 우치야마, 야스타카 v Nagao, Katsuki | 7-6,6-3 |
| ITF Japan F8 | 2015/06/25 04:25 | 에하라, 히로야스 v Nagao, Katsuki | 4-6,3-6 |
| ITF Japan F8 | 2015/06/24 01:10 | Nagao, Katsuki v Osafune, Masaki | 6-3,6-0 |
| ITF Japan F7 | 2015/06/18 02:00 | 타누마, 리요타 v Nagao, Katsuki | 6-3,6-1 |
| ITF Thailand F9 | 2015/08/11 05:25 | Kondo, Hiroki v 카우수토, 차야논 | 6-3,6-7,2-6 |
| ITF Thailand F9 | 2015/08/04 03:00 | 첸, 티 v Kondo, Hiroki | 2-6,7-6,7-6 |
| ITF China F11 | 2015/07/20 04:10 | Kondo, Hiroki v 김, 영석 | 6-7,1-6 |
| ITF China F10 | 2015/07/14 02:00 | Wachiramanowong, Kittiphong v Kondo, Hiroki | 6-7,6-2,6-1 |
| ITF Thailand F9 | 2015/06/25 04:50 | Wachiramanowong, Kittiphong v Kondo, Hiroki | 6-4,6-3 |
| ITF Thailand F9 | 2015/06/24 04:30 | 오카무라, 이세이 v Kondo, Hiroki | 1-6,2-6 |
| ITF Thailand F9 | 2015/06/18 03:00 | Takeuchi, Kento (1987) v Kondo, Hiroki | 6-0,7-6 |
| ITF Japan F6 | 2015/06/09 07:00 | Kondo, Hiroki v 타카하시, 유스케 | 3-6,3-6 |