FeBRUISEary Roller Derby Bout Sat., Feb. 20, The Slayground, 4033 35th St. N., St. Petersburg 6:30 p.m. first whistle at 7. $10 adv./$12 at the door. Skaters' warm-up at 5:30 p.m. deadlyrivalrollerderby.com. Some fringe-athletics trends come and go, but roller derby is, apparently, forever. Not that we’re complaining — working out while working out one’s […]