Gaelic handball
Gaelic handball (known in Ireland simply as handball;Irish: liathróid láimhe) is a sport played in Ireland where players hit a ball with a hand or fist against a wall in such a way as to make a shot the opposition cannot return, and that may be played with two (singles) or four players (doubles). The sport is similar to American handball (a related and almost identical game), Basque pelota, racquetball and squash. It is one of the four Gaelic games organised by the Gaelic Athletic Association (GAA). In 2009, Irish Handball was rebranded as GAA Handball.
Rules
Handball is played in a court, or "alley". Originally, an alley measuring 60 feet by 30 feet was used with a front wall of 30 feet, off which the ball must be struck.
A smaller alley was also introduced, measuring 40 feet by 20 feet with a front wall 20 ft high. The first alley of this size was built in Ireland in 1969. This smaller size is now the standard in the international version of the game, but both alleys are still used in the Gaelic game, with two separate championships run by the GAA in the two codes.