The ATLANTA ROLLERGIRLS kick off their hard-hitting, free-wheelin' 2010 season. Following a sold-out 2009 season, Atlanta is once again ready for the derby girls to let it all hang out as they lace up their skates for the return of flat-track domination. First up, the all-star game pins Atlanta's own Dirty South Derby Girls against St. Louis, Mo.'s Arch Rival Rollergirls. After clearing the blood, sweat and tears from the track, the home-team bout revs up with the Apocalypstix and Sake Tuyas duking it out for hometown bragging rights. $15-$25. Bout 1, 5 p.m.; bout 2, 7:30 p.m. Yaarab Shrine Center, 400 Ponce de Leon Ave. 404-872-5818. www.atlantarollergirls.com.