Round: 28 Ground: Hardcourt outdoor
| ITF Japan F7 MD | 2017/06/08 06:15 | Nagao/Oku v Watanuki/Watanuki | 7-6,4-6,8-10 |
| ITF Japan F7 MD | 2017/06/06 09:15 | Han/Kai v Watanuki/Watanuki | 5-7,6-3,4-10 |
| ITF Japan F6 MD | 2017/06/01 03:55 | Matsui/Rungkat v Watanuki/Watanuki | 6-4,6-2 |
| ITF Japan F6 MD | 2017/05/31 05:30 | Watanuki/Watanuki v Kikuchi/Takeshima | 6-4,6-7,10-6 |
| ITF Japan F6 MD | 2017/05/30 08:05 | Okamura/Takeuchi v Watanuki/Watanuki | 4-6,3-6 |
| ITF Japan F3 MD | 2017/03/23 05:30 | Watanuki/Watanuki v Ehara/Niki | 6-7,6-7 |
| ITF Japan F3 MD | 2017/03/20 07:20 | Watanuki/Watanuki v Moritani/Shiga | 6-3,6-3 |
| Challenger Toyota MD | 2016/11/14 05:30 | Watanuki/Watanuki v Ratiwatana/Yi | 3-6,4-6 |
| ITF Japan F7 MD | 2017/06/08 07:00 | Imai/Onozawa v Kishi/Numajiri | 6-7,6-3,10-8 |
| ITF Japan F7 MD | 2017/06/06 06:30 | Imai/Onozawa v Ehara/Shimabukuro | 6-4,6-2 |
| ITF Vietnam F8 MD | 2016/08/05 09:30 | Hoang LY/Nguyen Hoang v Imai/Onozawa | 2-6,6-4,5-10 |
| ITF Vietnam F8 MD | 2016/08/04 06:50 | Kikuchi/Takeshima v Imai/Onozawa | 3-6,1-6 |
| ITF Hong Kong F3 MD | 2016/06/21 22:00 | Imai/Onozawa v Rastogi/Wong | 6-4,6-2 |
| ITF Japan F2 MD | 2016/03/14 06:35 | Onishi/Tanuma v Imai/Onozawa | 6-3,6-4 |
| ITF Japan F1 MD | 2016/03/11 04:15 | Imai/Onozawa v Kibi/Matsui | 3-6,2-6 |
| ITF Japan F1 MD | 2016/03/08 05:10 | Kato/Yoshida v Imai/Onozawa | 1-6,4-6 |