Flyball is a dog sport in which teams of dogs race against each other over a line of hurdles to a ramp/box that releases a tennis ball when the dog presses the spring loaded pad, then back to their handlers while carrying the ball.
Disc Dog (also called Frisbee Dog) is a dog sport in which dogs and their people compete in events such as distance catching ("toss and fetch") and choreographed catching set to music ("freestyle").