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court 
Enclosed space whose surfaces make up the playing area; it is 12.2 m long, 6.1 m wide and 6.1 m high.
referee
Official responsible for applying the rules; the referee ensures that the match runs smoothly and rules on contentious points.
line judge
The two officials who, at the request of the referee or a player, confirm or reverse the referee’s decision.
door
Glass-covered opening used to access the racquetball court.
backcourt
Zone between the short line and the back wall.
floor
Horizontal surface that is usually made of wooden slats; the ball may only bounce once on it.
receiving line
Line that the receiver stands behind; the receiver may not step over the receiving line until the serve crosses it.
center court
Part of the court behind the short line and between the sidewalls; it is a strategic zone that players attempt to control.
service line
Line marking the front of the service zone.
service zone
Zone where a player stands to serve; the ball must bounce once in this zone before it is served.
service box
In doubles play, the server’s partner must stay inside this area until the ball crosses the short line.
service box line
Line drawn 46 cm from the sidewall that marks the service box at both ends of the service zone.
short line
Line dividing the court in half; the serve must cross the short line after bouncing off the front wall.
frontcourt
Area between the front wall and the short line.
back wall
Wall marking the back of the court behind the players; the back wall has an out-of-bounds line 3.66 m above the ground.
sidewall
Wall marking the sides of the court.
front wall
Wall facing the players; the service is made onto it.
ceiling
Horizontal surface making up the upper part of the court; the ceiling is part of the playing area.
