| ITF Japan F7 MD | 2017/06/08 06:15 | Nagao K / Oku H v Watanuki Y / Watanuki Y | 7-6,4-6,8-10 |
| ITF Japan F7 MD | 2017/06/06 09:10 | Nagao K / Oku H v Sekiguchi S / Suzuki T | 6-3,6-4 |
| ITF Japan F6 MD | 2017/05/30 07:40 | Fukuda S / Onozawa A v Nagao K / Oku H | 6-2,7-5 |
| ITF Singapore F1 MD | 2017/05/27 11:05 | Ehara H / Katayama S v Nagao K / Oku H | 7-6,6-2 |
| ITF Singapore F1 MD | 2017/05/27 07:50 | Moritani S / Takeuchi K v Nagao K / Oku H | 6-7,6-1,8-10 |
| ITF Singapore F1 MD | 2017/05/23 06:25 | Hung J-C / Yu C-Y v Nagao K / Oku H | 4-6,3-6 |
| ITF Japan F5 MD | 2017/04/08 12:40 | Imai S / Niki T v Nagao K / Oku H | 6-4,6-4 |
| ITF Japan F5 MD | 2017/04/07 07:50 | Uesugi K / Watanuki Y v Nagao K / Oku H | 3-6,6-2,5-10 |