This popped up on the 'zone this morning:

http://worldpaddleassociation.com/wp-content/uploads/2010/12/2012-WPA-SUP-RACING-RULEBOOK.pdf

draft-legal rules, draft-not-allowed rules, board classes & age classes defined, misconduct, penalties etc etc etc

It's all a bit "ruley" but I suppose it's inevitable as numbers, profile and stakes approach critical mass...

...IMO we're all too polite to need a rule book here

Those WPA rules are a guideline for affiliated events to choose which categories suit the local event organisers and participants. You won't necessarily see Over 50s at all events in the US.

The Victorian State Titles does not include an Over 50s division because the event is uniform with the Surfing Australia National Titles and the ISA World Titles. I agree there is a place for Veterans divisions in SUP events, both racing and surfing, but it's debatable whether this should be a division for local club events rather than world, national and state titles. Nevertheless, I think we will include an Over 50s category for men in next summer's Victorian Flat Water Championship Series.