The 37th Zamami Ocean Race is to be held July 5th 2014.
第３７回座間味ヨットレース
The start line is just in front of Ginowan Marina. The Goal is Zamami which is a distance of around 22 Nautical Miles.
Contact the organisers on 098-987-2320
They have set up a home page in Japanese.
http://www.vill.zamami.okinawa.jp/event/2014/04/post-65.html