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racquetball,sport played indoors by two or four players, combining elements of court handballhandball, court,
indoor or outdoor game played by striking a ball against a wall or walls with the palm of the hand. Play may be for singles or doubles (four players) on a court with one, three, or four walls. The court is typically 20 ft (6.1 m) by 34 ft (10.
..... Click the link for more information. and such racket games as squash racquetssquash racquets
game played on a four-walled court, 16 ft (4.88 m) high by 18 1-2 ft (5.64 m) wide by 32 ft (9.75 m) long. The back wall, shorter than the front wall, usually measures 9 ft (2.74 m). A horizontal service line 6 1-2 ft (1.
..... Click the link for more information. . It is played on a standard handball court 40 ft (12.2 m) long, 20 ft (6.1 m) wide, and 20 ft high, with a back wall at least 12 ft (3.6 m) high. The fiber-strung racket is attached to the player's wrist with a thong, and the ball is slightly larger and lighter than that used in handball. Racquetball was developed in the early 1950s and enjoyed a boom in popularity throughout the United States in the 1970s. The United States Racquetball Association holds annual singles and doubles championships.