How many tournaments make up tennis's Grand Slam? Four tournaments make up tennis's Grand Slam: the Australian Open, French Open, Wimbledon, and US Open.
These four annual events are also called the major championships or simply the majors. They are played in that order across the season, beginning with the Australian Open in January and ending with the US Open in late summer. Each major uses a different setting and surface tradition: hard courts in Australia and the United States, clay in France, and grass at Wimbledon.
The tournaments developed from national championships held in Australia, France, Britain, and the United States. By the early 20th century, they had become tennis's four most prestigious events. The phrase “Grand Slam” originally came from contract bridge, where it meant winning every possible trick, and was later adopted by sports writers.
A common mix-up is confusing the four Grand Slam tournaments with winning a Grand Slam. The latter means winning all four majors in the same calendar year; winning them across a career is called a Career Grand Slam.