Grand Slam tournaments are not operated by the Association of Tennis Professionals (ATP) or the Women's Tennis Association (WTA), which were formally founded in 1972 and 1973 respectively, though the ATP and WTA do award ranking points based on a player's performance at a major.
The term Grand Slam, without qualification, and also originally, refers to the achievement of winning all four major championships within a single calendar year within one of the five events: men's and women's singles; men's, women's, and mixed doubles. In doubles, one team may accomplish a Grand Slam playing together or one player may achieve it with different partners.
Winning the four majors in consecutive tournaments but not in the same year is known as a Non-Calendar Year Grand Slam, while winning all four majors at any point during the course of a career is known as a Career Grand Slam. Winning the gold medal at the Summer Olympic Games in addition to the four majors in one calendar year is known as a "Golden Grand Slam" or more commonly the "Golden Slam". Also, winning the Year-End Championship (known as ATP Finals for men's singles and doubles disciplines, and WTA Finals for both women's disciplines) in the same period is known as a "Super Slam". Together, all four Majors in all three disciplines (singles, doubles, and mixed doubles) are called a "boxed set" of Grand Slam titles. No male or female player has won all twelve events in one calendar year, although a "career boxed set" has been achieved by three female players.
The term slam for winning all of the tricks in the whist family card games (see also whist terms) is attested from early in the 17th century. Grand slam for all of the tricks, in contrast to small slam or little slam for all but one, dates from early in the 19th century. This use was inherited by contract bridge, a modern development of whist defined in 1925 that became very popular in Britain and America by 1930.
Grand slam has been used in golf since 1930, when Bobby Jones won the four major championships, two British and two American tournaments. Although John F. Kieran of The New York Times is widely credited with first applying the term "grand slam" to tennis to describe the winning of all four major tennis tournaments in a calendar year, sports columnist Alan Gould had used the term in that connection almost two months before Kieran.