Reader photos: Southern California Moments, Day 77

Jammer awareness: A visiting player from Hawaii lines up for a "jam" at the L.A. Derby Dolls exhibition bout with the San Diego Derby Dolls at the Doll Factory on March 13 in this photo by Susanica Tam, who also skates in the league as "Mia More."

Every day of 2011, we're featuring reader-submitted photos of Southern California Moments. Follow us on Twitter and visit the Southern California Moments homepage for more on this series.