Grand Slam (tennis) Grand Slam (tennis) The Grand Slam tournaments, also called majors, are the four most important annual tennis events. They offer the most ranking points, prize money, public and media attention, the greatest strength and size of field, and greater number of "best of" sets for men. The Grand Slam itinerary consists of the Australian Open in mid January, the French Open around late May through early June, Wimbledon in June-July, and the US Open in August-September. Each tournament is played over a period of two weeks. The Australian and United States tournaments are played on hard courts, the French on
Open Era tennis records – men's singles ATP Rankings began in August 1973. These weekly rankings determine tournament eligibility and seedings. At the end of each year they also become the official ATP season rankings. Total weeks with currently-ranked players in boldface Year-end totals through 2018 Note the following: Youngest and oldest title winners Instances of winning titles on 3 surfaces across consecutive events played Open Era tennis records – men's singles The Open Era is the current era of professional tennis. It began in 1968 when the Grand Slam tournaments allowed professional players to compete with amateurs, ending the division that had persisted since the dawn