The Penn Jersey She Devils are the first league to bring roller derby back to the Philadelphia region in almost 30 years. Founded in 2005 by Ken Sikes and Greg Spencer, the She Devils started out with just a handful of girls and a vision of restoring one of America's most popular sports to some of its former glory. Today, PJSD is a skater-owned and operated co-ed league more than fifty skaters strong and growing.

To help us skaters get the most out of every stride are two ex-professional skaters, Judy "The Polish Ace" Sowinski and Arnold “Skip” Schoen. We also have our champion speed skating advisor, known as "Big John" on the rink. Judy skated for the LA T-Birds, the Eastern Warriors, and NY Bombers between the late 50’s and the early 80’s. She was Rookie of the Year in 1972 and was inducted into the Roller Derby Hall of Fame in 2004. She kicks our ass at every practice, demands 110 percent, and pushes each and every one of us to be the toughest skaters we can out on the rink. Skip also skated with the Eastern Warriors in the 1970’s and can still give our best jammers a run for their money. Every practice he’s skating right along side us, teaching us the proper ways to block, whip, turn, and fall... so we’re still in one piece after a hard game!

Currently, PJSD skates flat track derby, as do most of the hundred plus leagues around the world. However, one of PJSD’s main goals is to have its own venue and a banked track. In the interest of keeping today's version of derby as close to banked-track rules as possible, the She Devils helped found the Old School Derby Association in 2007. OSDA rules are designed specifically to keep derby real, rough, defensive, and unpredictable.