| ITF M15筑波 男双 | 03/27 07:10 | 26 | Jea Moon Lee/Minkyu Song v Hikaru Shiraishi/田岛尚辉 | 6-2,6-1 | |
| ITF M25高崎 男双 | 09/21 06:25 | 27 | Hikaru Shiraishi/田岛尚辉 v 越智真/田沼谅太 | 6-4,4-6,4-10 | |
| ITF M15轻井泽 男双 | 06/04 02:00 | 28 | Hikaru Shiraishi/田岛尚辉 v Sora Fukuda/渡边圣太 | 4-6,2-6 | |
| ITF M15轻井泽 男双 | 05/31 07:40 | 26 | Yuichiro Inui/铃木高 v Hikaru Shiraishi/田岛尚辉 | 4-6,1-6 |