I'll second that. Was there for a couple hours but we weren't prepared for the foggy Presidio and left earlier than we would have otherwise. (Their party sat nite was fun too!)
These guys are the real deal -- unlike a lot of other gay sporting events (softball, gay rodeo) where it seems to be a requirement that gayness and camp be shoehorned into every crevice, this was simply a rugby tournment organized by guys who love rugby who happen to be gay. Best T-shirt: the Houston Roughnecks', which said "Maul Me. Ruck Me. Make Me Scrum."