| ITF Japan F5 MD | 04/06 04:55 | 28 | Imai S / Niki T v Hatakeyama N / Itsusaki K | 6-4,6-4 | |
| ITF Japan F5 MD | 04/05 05:30 | 27 | Hatakeyama N / Itsusaki K v Matsuo Y / Sumizawa D | 6-2,6-4 | |
| ITF Japan F5 MD | 04/04 06:50 | 26 | Okamura I / Wu T-L v Hatakeyama N / Itsusaki K | 3-6,4-6 | |
| ITF Japan F3 MD | 03/23 04:00 | 27 | Ito Y / Yamasaki J v Hatakeyama N / Itsusaki K | 6-4,6-1 | |
| ITF Japan F3 MD | 03/22 06:00 | 26 | Hatakeyama N / Itsusaki K v Matsuo Y / Sumizawa D | 6-1,6-3 | |
| Challenger Yokohama MD | 02/27 03:00 | 26 | Gong M-X / Zhang Z v Hatakeyama N / Itsusaki K | 6-1,6-3 |