Pickleball is a racket or paddle sport in which two players or four players hit a perforated, hollow plastic ball with paddles over a 34-inch-high net until one side is unable to return the ball or commits a rule infraction. Pickleball is played indoors and outdoors.

Tennis is a racket sport that is played either individually against a single opponent or between two teams of two players each. Each player uses a tennis racket that is strung with cord to strike a hollow rubber ball covered with felt over or around a net and into the opponent's court.

Skiing is the use of skis to glide on snow. Variations of purpose include basic transport, a recreational activity, or a competitive winter sport.

Snowboarding is a recreational and competitive activity that involves descending a snow-covered surface while standing on a snowboard that is almost always attached to a rider's feet. It features in the Winter Olympic Games and Winter Paralympic Games.