what is flyball?

Flyball is a dog sport in which teams of dogs race against each other from the start to the finish line, over a line of hurdles, to a box that releases a tennis ball to be caught when the dog presses the spring-loaded pad, then back to their handlers while carrying the ball.

Flyball is run in teams of four dogs, as a relay. The course consists of four hurdles placed 10 feet apart from each other, with the starting line six feet from the first hurdle, and the flyball box 15 feet after the last one, making for a 51-foot length.