There's at least a couple of different runs, relay and hurdles are examples of variations on pure running. And if you squint, ice skating in a lot of ways is j

There's at least a couple of different runs, relay and hurdles are examples of variations on pure running. And if you squint, ice skating in a lot of ways is just a different style of running (with blades on the feet). Though you might then argue that rowing is a type of swimming with oars and a boat :)