Riders face danger and difficulty in a contest of strength, balance and endurance; a qualified ride is eight seconds, and each ride is worth up to 100 points.
Florida won two of its three matchups at Anaheim to move into first place in the standings, holding a points lead over defending champion Austin and Arizona.
Florida won all three matchups at Greensboro to move into a solo lead at 18-5, leading Arizona by one win, while defending champion Austin is in third.