Rebecca Ninburg is Skating into Sports History

The cofounder of the Los Angeles Derby Dolls, a volunteer-run Roller Derby league, is redefining femininity

Her lightbulb moment: I worked in a male-dominated field as a sculptor in the movie industry, but the thought of that work being my legacy made me sad. I had seen Roller Derby on television as a child and thought it was the coolest thing—women could be aggressive and strong and still attractive—so when I found out a female coworker wanted to start a league, I said that’s what we are going to do.

Her elevator pitch: We push people to explore their power physically and mentally. You have to deal with defeat. You have to deal with success. The Derby Dolls offers women and young girls the space to learn what leadership is.

Her greatest challenge: We struggle to get recognized as a true sport.