Round: 27 Ground: Clay
| 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 |
| Challenger Kobe - MP | 2016/11/10 05:00 | Masur/Pavic v Watanuki/Watanuki | 2-6,6-3,10-5 |
| Challenger Kobe - MP | 2016/11/07 06:10 | Watanuki/Watanuki v Peng/Uchiyama | 2-6,6-3,11-9 |
| ITF Japan F7 MD | 2016/06/11 06:30 | Watanuki/Watanuki v Moritani/Okamura | 6-3,6-4 |
| ITF Japan F7 MD | 2016/06/10 05:40 | Watanuki/Watanuki v Han/Uesugi | 3-6,7-6,10-6 |
| ITF Japan F5 MD | 2017/04/03 05:50 | Kikuchi/Takeshima v Katayama/Kono | 2-6,4-6 |
| ITF Japan F4 MD | 2017/03/30 05:10 | Imai/Uesugi v Kikuchi/Takeshima | 6-4,6-1 |
| ITF Japan F4 MD | 2017/03/28 06:10 | Tanaka/Yamasaki v Kikuchi/Takeshima | 6-4,4-6,4-10 |
| ITF Japan F3 MD | 2017/03/20 05:25 | Kikuchi/Takeshima v Purcell/Tokuda | 6-7,1-6 |
| ITF Japan F2 MD | 2017/03/18 02:00 | Niki/Uesugi v Kikuchi/Takeshima | 7-6,6-7,10-3 |
| ITF Japan F2 MD | 2017/03/17 05:30 | Hoang Ly/Okamura v Kikuchi/Takeshima | 4-6,4-6 |
| ITF Japan F2 MD | 2017/03/16 06:00 | Kikuchi/Takeshima v Imai/Takahashi | 6-3,6-2 |
| ITF Japan F2 MD | 2017/03/13 07:20 | Kikuchi/Takeshima v Purcell/Tokuda | 3-6,6-3,10-5 |