Do you long for the days when roller derbies ruled? Then check out these area leagues:

* Philly Roller Girls - a flat-track league, including the all-star Liberty Belles. Tryouts for next season are Sunday at Millennium Skate World, in Camden. www.phillyrollergirls.com.

* Penn Jersey Roller Derby - a co-ed league that rolls on banked and flat tracks. They practice in North Philly at 18th Street and Indiana Avenue. pennjerseyrollerderby.com

For information on tomorrow's hall of fame events, go to www.rollerderbyhalloffame.com