Intro to Flat-track Roller Derby


4.1 ( 1691 ratings )
Sport Referens
Utvecklare: Germaine Koh
Gratis

An introduction to the fast-moving sport of flat-track roller derby, including a video demo, explanations of rules and referee hand signals, a FAQ, and a new strategy section. Updated with 2013 rule and hand signal changes. This app was designed and written by an active rollergirl.