I have two... Podracing and Kohlii.
You probably know what podracing is, but Kohlii needs a bit more explanation. It's from "Bionicle" and is almost like a cross between soccer, hockey, and lacross. Two to six teams (yes, the number of teams can vary) fight over a single ball, which they try to knock into each other's goals; they may do so by kicking, head-butting, or smacking/throwing it with their double-sided staff (tipped with a hammer and scoop on either end). Goalies also have shields to help block incoming goals.