Round: 26 Ground: Hardcourt outdoor
| ITF Japan F3 MD | 2018/03/22 09:45 | Imai S / Niki T v Seol J-M / Song M-K | 3-6,3-6 |
| ITF Japan F3 MD | 2018/03/19 06:40 | Imai S / Niki T v Sasai M / Sekiguchi S | 6-4,6-3 |
| ITF Japan F2 MD | 2018/03/17 06:00 | Imai S / Niki T v Lee E / Lim E | 7-5,6-3 |
| ITF Japan F2 MD | 2018/03/16 06:00 | Imai S / Niki T v Ito T / Uesugi K | 6-2,4-6,10-1 |
| ITF Japan F2 MD | 2018/03/15 04:35 | Imai S / Niki T v Koga D / Yasugami T | 7-5,6-3 |
| ITF Japan F2 MD | 2018/03/12 07:45 | Imai S / Niki T v Hong H-H / Yu M-H | 6-3,6-1 |
| ITF Japan F1 MD | 2018/03/10 05:15 | Imai S / Niki T v Katayama S / Moritani S | 6-1,6-4 |
| ITF Japan F1 MD | 2018/03/09 05:00 | Imai S / Niki T v Kibi Y / Onozawa A | 7-5,7-5 |