In terms of actual *competitions*, there aren't that many, or at least, not formal ones. More common are meet-ups, which can be every bit as much fun. I believe there was some jamming in York yesterday, and there'll be quite a few at Bath
in a few weeks.
We're still waiting for the date and details of this year's British Open to be confirmed. Last I heard they were rumoured to be happening in Exeter, in late April or early May. I hope we'll be hearing confirmation of those soon.
In terms of local scenes, as mentioned in the FAQ
, make stuff happen! Get a friend or two into kendama, meetup regularly, take it from there...