Many changes in the Grand Slam tennis tournaments have affected the number of titles won by various players during its history. These changes have included the opening of the French national championships to international players in 1925, the elimination of the challenge round in 1922, and the admission of professional players in 1968 (the start of the Open Era). All of these tournaments have been listed based on the modern definition of a tennis major, rather than when they were officially recognized by the ILTF. The Grand Slam tournaments are the annual four major tennis events played in the Open Era, which began in 1968, superseding the Amateur Era. The Australian and U.S. tournaments were officially recognized by the ILTF in 1924, and the French Championships followed a year later in 1925 when it became open to all international players. The United States Lawn Tennis Association (USLTA) had several grievances with the ILTF and refused to join when it was formed in 1913. From 1913 to 1923, there were three official championships recognized by the ILTF: World Grass Court Championships – Wimbledon. World Hard Court Championships, held in Paris on clay courts. World Covered Court Championships, held in Europe on an indoor wood surface. During that same time period the USLTA recognized the U.S. National Championships U.S. National Championships, held in New York on grass. == Champions by year == == Champions list == Tournament record and active players indicated in bold. Only players with four or more Grand Slam titles are included in the list. 153 champions in 491 events as of the 2025 US Open. Amateur Era – 98 champions in 261 events. Open Era – 58 champions in 230 events. Australians Ken Rosewall, Rod Laver and John Newcombe are the only players to have become champions in both the Amateur Era and in the Open Era. Youngest and oldest champions Michael Chang – 17 years, 3 months, at 1989 French Open. Arthur Gore – 41 years, 6 months, at 1909 Wimbledon. (One match) Ken Rosewall – 37 years, 2 months, at 1972 Australian Open. (Open Era) == Grand Slam achievements == These are players who achieved some form of a tennis Grand Slam. They include a Grand Slam, non-calendar year Grand Slam, Career Grand Slam, Career Golden Slam, and Career Super Slam. No male player has won a single season Golden Slam. The tennis Open Era began in 1968, after the Australian Open and before the French Open. === Grand Slam === Players who won all four major titles in a calendar year. === Non-calendar year Grand Slam === Players who won all four major titles consecutively (not in a calendar year). The event at which the non-calendar year Grand Slam was completed indicated in bold. === Career Grand Slam === Players who won all four major titles over the course of their careers. The event at which the Career Grand Slam was completed indicated in bold. === Career Golden Slam === Players who won all four major titles and the Olympic gold medal over the course of their careers. The event at which the Career Golden Slam was completed indicated in bold. === Career Super Slam === Players who won all four major titles, the Olympic gold medal and the Tour Finals over the course of their careers. The event at which the Career Super Slam was completed indicated in bold. === Career Surface Slam === Players who won Grand Slam titles on clay, grass and hard courts over the course of their careers. The event at which the Career Surface Slam was completed indicated in bold == Multiple titles in a season == === Three titles === === Two titles === == Tournament statistics == == Consecutive titles == == Grand Slam titles by decade == as of 2025 US Open. Note: Ken Rosewall, Novak Djokovic, and Rafael Nadal are the only male players to win Grand Slam singles titles in three different decades. Nadal is the only player to win multiple titles in all three decades, winning at least 3 titles in all three decades. == Grand Slam titles by country == === All-time === as of 2025 US Open. === Open Era === as of 2025 US Open. == See also == == References ==