Ground: Synthetic outdoor
| ITF Thailand F9 | 2015/04/20 04:00 | Nagao, Katsuki v 타케시마, 순로우 | 4-6,5-7 |
| ITF Japan F4 | 2014/04/02 01:00 | 타케시마, 순로우 v Nagao, Katsuki | 6-4,6-4 |
| ITF Japan F6 | 2015/06/09 05:00 | 타케시마, 순로우 v 타누마, 리요타 | 3-6,1-6 |
| ITF Japan F5 | 2015/06/04 01:00 | 사이토, 타카시 v 타케시마, 순로우 | 7-5,6-1 |
| ITF Japan F5 | 2015/06/02 01:00 | 타케시마, 순로우 v 키쿠치, 겐고 | 7-5,6-4 |
| ITF Thailand F9 | 2015/04/25 06:30 | Kaewwongwattana, Soravich v 타케시마, 순로우 | 1-6,2-6 |
| ITF Thailand F9 | 2015/04/23 04:00 | 타케시마, 순로우 v 와타나쿨, 폴 | 1-6,4-6 |
| ITF Thailand F9 | 2015/04/22 04:50 | Rungkat, Christopher v 타케시마, 순로우 | 2-6,1-6 |
| ITF Thailand F9 | 2015/04/20 04:00 | Nagao, Katsuki v 타케시마, 순로우 | 4-6,5-7 |
| ITF Thailand F9 | 2015/04/19 04:00 | 타케시마, 순로우 v 스테벤슨, 켈세이 | 6-2,6-2 |
| ITF Japan F6 | 2015/06/10 01:30 | 와타누키, 요스케 v Nagao, Katsuki | 7-6,6-7,6-4 |
| ITF Japan F5 | 2015/06/02 01:00 | Mclachlan, Ben v Nagao, Katsuki | 6-1,6-2 |
| ITF Guam F1 | 2015/05/30 02:20 | Suzuki, Takao v Nagao, Katsuki | 2-6,6-4,6-2 |
| ITF Guam F1 | 2015/05/29 01:40 | Nagao, Katsuki v Moore, B. | 2-6,6-4,6-2 |
| ITF Guam F1 | 2015/05/25 01:00 | Nagao, Katsuki v Sadler, Olly | 6-4,6-4 |
| ITF Thailand F9 | 2015/04/25 04:00 | Nagao, Katsuki v Itzstein, Zach | 5-7,3-6 |
| ITF Thailand F9 | 2015/04/20 04:00 | Nagao, Katsuki v 타케시마, 순로우 | 4-6,5-7 |
| ITF Thailand F9 | 2015/04/19 03:00 | Nagao, Katsuki v 라티와타나, 손채트 | 6-3,6-3 |