The generic usage is "a year""There are four major tennis tournaments a year.
Australian Open, French Open, Wimbledon, U.S. Open
Four major tennis tournaments... the US open, the Austrailian open, the French open, and Wimbledon.
1. Wimbledon 2. US Open 3. Australian Open 4. French Open
The four major tennis tournaments are played on different surfaces. The US Open is played on a Hard Court, French Open is on Clay, Wimbledon is played on grass, and the Australian Open is played also played on a hard court.
The four major tennis tournaments; the US Open, the Open Championships(wimbledon), Roland Garros (French Open), and the Australian Open are known as the Grand Slam of tennis. Hitting a grand slam in baseball scores four runs and is the greatest accomplishment a baseball player can achieve during one at bat. Likewise, winning the Grand Slam of tennis involves winning four tournaments and is considered the greatest accomplishment in tennis. Because "tournament which makes up part of the Grand Slam of tennis" is so long it is usually shortened to "Slam".
Paris, New York, London, and Melbourne, Australia
These four tournaments are also known as the grand slams. They are the:French open - Held in Roland Garros, France.The US open - Held in Flushing Meadows, NY, US.The Australian open - Australia, Melbourne.Wimbledon - Wimbledon, London, England.
The four most important tennis tournaments of the world are called Grand Slam tournaments. They are: the Australian Open, the French Open, Wimbledon and the US Open. Any player who wins these four tournaments in a row is said to have won the Grand Slam.