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The Yamato Cup
The Yamato Cup is a ball hockey tournament in Tokyo that takes place every October. Or, at least, that's the plan. The first one was held in 2008, and was a huge success, so we're going ahead and doing it again in 2009.
The Yamato Cup was formed by members of the TSHA, or the JSHBF. Nobody knows who runs anything around here.
You can get complete information on the Yamato Cup website , including how to register for the next one.
Yamato Cup 2008
The official TSHA report on the 2008 Yamato Cup.