| ITF M15 Jakarta MD | 06/28 07:30 | 26 | Susanto A / Susanto D A v Okamura I / Sumizawa D | 7-6,7-6 | |
| Wuhan, Doubles M-ITF-CHN-05A | 05/08 06:40 | 26 | Okamura I / Sumizawa D v Noguchi R / Tanuma R | 6-7,4-6 | |
| ITF - M15 Kashiwa - Doubles Hommes | 04/02 09:05 | 26 | Shiraishi H / Watanabe S v Okamura I / Sumizawa D | 6-4,6-7,10-6 | |
| ITF M15 Anning MD | 01/03 07:20 | 27 | Fukuda S / Ichikawa T v Okamura I / Sumizawa D | 6-4,6-4 | |
| ITF M15 Anning MD | 01/01 08:55 | 26 | Okamura I / Sumizawa D v Inui Y / Moritani S | 6-3,6-2 |