National Pickleball Day is observed worldwide on August 8 in the United States and on the second Saturday of August in Canada. This day celebrates pickleball, a sport that combines elements of badminton, tennis, and table tennis, using paddles to hit a plastic ball over a net. The game was invented in 1965 by Joel Pritchard, Bill Bell, and their children, who created it out of boredom while looking for a game to play. It has since grown to become the fastest-growing sport in North America, with significant popularity in public parks, community centers, and retirement communities. National Pickleball Day was established by American instructor Deirdre Morris to encourage people to learn the sport, and it is promoted by organizations like Pickleball Central. Typical customs for celebrating include playing matches, hosting tournaments, and teaching newcomers the basics of the game.