It turns out those quad-skating fiends in the Bay Area Derby Girls aren't just fearsome roller chicks — they've also got a knack for getting down and dirty in the wrestling pit. Tonight, the ladies of the Richmond Wrecking Belles, Oakland Outlaws, and the SF ShEvil Dead duke it out in the mud, waging sloppy smackdowns to raise funds for their league. With Derby girls Annie Agony and Nancy Drew Blood on the team roster, expect just as many raucous moments and unsportsmanlike maneuvers as you might encounter at a typical B.A.D. Girls bout.