Stadium: Court 1 Round: 26
| ITF Japan F1 MD | 2018/03/06 06:30 | Imai/Niki v Sakai/Tanaka | 7-6,6-2 |
| 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 | Murray/Zhu v Sakai/Tanaka | 6-2,4-6,5-10 |
| ITF Hong Kong F6 MD | 2018/01/03 05:50 | Sakai/Tanaka v Fukuda/Moritani | 6-4,7-6 |
| ITF Hong Kong F6 MD | 2018/01/01 03:25 | Sakai/Tanaka v Heliovaara/Kwong | 7-5,6-1 |
| 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 |