SAN BRUNO — Ann Calvello, the original "Roller Derby Queen" known for intimidating rivals and even teammates while skating well into her 60s, has died of liver cancer. She was 76. The roller derby ...
Don't know the difference between flat-track (the most widely played style of the 2000s derby revival) and banked-track (popularized in the '60s and '70s) roller derby? There's a... Facts Matter.