Stadium: I Round: 27 Ground: Hardcourt outdoor
| ITF Japan F1 MD | 2018/03/06 06:00 | Nakagawa/Yamasaki v Hazawa/Shimizu | 2-6,6-7 |
| ITF China F1 MD | 2018/01/12 06:50 | Hazawa/Shimizu v Te/Wang | 5-7,6-7 |
| ITF China F1 MD | 2018/01/11 05:45 | Li/Tanuma v Hazawa/Shimizu | 4-6,3-6 |
| ITF China F1 MD | 2018/01/10 06:00 | Lu/Okamura v Hazawa/Shimizu | 6-4,3-6,5-10 |
| ITF China F1 MD | 2018/01/08 04:45 | Hazawa/Shimizu v Hu/Tang | 6-4,6-2 |
| Challenger Kobe MD | 2017/11/07 06:20 | Kibi/Onishi v Hazawa/Shimizu | 6-4,6-4 |
| ITF Japan F1 MD | 2018/03/06 06:30 | Oku/Sasai v Katayama/Moritani | 6-7,6-2,9-11 |