Pickleball is a racket or paddle sport in which two (singles) or four (doubles) players hit a perforated, hollow plastic ball with paddles over a 34-inch-high (0.86 m) net until one side is unable to return the ball or commits an infraction. Pickleball is played indoors and outdoors. It was invented in 1965 as a children's backyard game in the United States, on Bainbridge Island in Washington state. In 2022, pickleball was named the official state sport of Washington.