The alleys of a tennis court are the long rectangles to the very left and right of your court.
This picture will give you an idea of what I mean by the very long rectangles on the left and right:
http://upload.wikimedia.org/wikipedia/commons/thumb/f/f7/Tennis_court_imperial.svg/292px-Tennis_court_imperial.svg.png
They run along the long side of the court.
They are only used when playing doubles, that is 2 players versus 2 players. This is to allow more court room for more players to hit the ball.
During singles, 1 vs. 1, the alleys are ignored and any balls that land in the alley are considered out.
A sideline of a tennis court is called an alley.
From baseline to baseline and from alley to alley, a tennis court measures 78 feet by 36 feet. This does not include the extra area beyond the lines where the players run. For more specific measurements, check this link for a detailed tennis court diagram: http://www.prosportsofficialteamsites.com/Tennis_Nova_Sports_Court_novasports.gif
An alley in tennis is the area between the single's line and double's line.
Tennis is taken part on a tennis court in areas all around the world.
The difference in widths between a singles court and a doubles court is 9 feet or 2.74 meters. This accounts for the added doubles alleys, making each alley 4 feet 6 inches.
The portions of the court on each side that is in play in doubles and out of play in singles are known as the doubles alleys.
the tennis court at Falkland palace royale tennis club in Scotland is the oldest tennis court
what is the lenght of a tennis court
A tennis Court.:S
"Tennis court" in English is court de tennis in French.
You say "a lit tennis court." ex. Tennis courts are lit at night.
The area of a tennis court is 350cm2