| ITF - M15 Kashiwa - Doubles Hommes | 04/04 07:45 | 27 | Shiraishi H / Watanabe S v Kim H D / Nam J S | 6-7,6-2,7-10 | |
| 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 Tsukuba - Doubles Hommes | 03/26 04:35 | 26 | Mochizuki Y / Tanaka Y v Shiraishi H / Watanabe S | 6-3,6-4 |