| ITF Japan F8 MD | 2017/06/17 04:00 | Sakai/Tanaka v Noguchi/Shimizu | 6-3,6-2 |
| ITF Japan F8 MD | 2017/06/16 03:35 | Sakai/Tanaka v Kobayashi/Mochizuki | 7-6,6-3 |
| ITF Japan F8 MD | 2017/06/15 04:50 | Sakai/Tanaka v Ito/Onoda | 6-4,5-7,10-8 |
| ITF Japan F8 MD | 2017/06/14 06:40 | Nagao/Oku v Sakai/Tanaka | 4-6,2-6 |