Stadium: I Round: 27 Ground: Hardcourt outdoor
| ITF Japan F1 MD | 2018/03/06 06:30 | Imai/Niki v Sakai/Tanaka | 7-6,6-2 |
| Challenger Yokohama Qual MD | 2018/02/25 04:00 | Imai/Niki v Kai/Nakamura | 4-6,3-5 |
| ITF Hong Kong F6 MD | 2018/01/05 05:50 | Imai/Niki v Sakai/Tanaka | 6-2,3-6,4-10 |
| ITF Hong Kong F6 MD | 2018/01/04 07:15 | Imai/Niki v Bessire/Viola | 6-2,6-3 |
| ITF Hong Kong F6 MD | 2018/01/03 05:50 | Imai/Niki v Lim/Noguchi | 4-6,6-0,11-9 |
| ITF Hong Kong F6 MD | 2018/01/01 06:25 | Imai/Niki v Saito/Yamasaki | 6-3,6-2 |
| Challenger Toyota MD | 2017/11/15 08:10 | Imai/Niki v Matsui/Yi | 7-6,4-6,4-10 |
| Challenger Toyota MD | 2017/11/13 05:15 | Imai/Niki v Kimoto/Watanuki | 7-6,6-7,10-8 |
| ITF Japan F1 MD | 2018/03/06 06:00 | Kato/Yoshida v Okamura/Yu | 5-7,6-3,10-8 |
| ITF Japan F1 MD | 2017/03/08 04:15 | Kato/Yoshida v Noh/Yamasaki | 6-7,1-6 |
| ITF Japan F6 MD | 2016/06/01 04:20 | Katayama/Onozawa v Kato/Yoshida | 6-3,6-2 |
| ITF Japan F1 MD | 2016/03/08 05:10 | Kato/Yoshida v Imai/Onozawa | 1-6,4-6 |