These are considered the world's 9 biggest tennis events. They encompass Grand Slams, national (Davis and Fed) Cups, and end of season championships. Also included is a Look Inside link to "The Open Book", a celebration of 40 years of the U.S. Open.
- Australian Open - First of the 4 "Grand Slam" events held in Melbourne Australia in January. Founded in 1905, it is the youngest of the Slam events.
- French Open - The second Slam event on the calendar, it is held in Paris France in the Spring. Founded in 1891, it is the third oldest Slam.
- Wimbledon - Third on the calendar, it is the oldest, and some would say most prestigious title in tennis. Founded in 1877, it is held in London England in June.
- U.S. Open - The fourth and final Slam event on the calendar, it is the second oldest Slam event and was founded in 1881. It is held in September in NYC.
- ATP Masters Series - Held at the end of the year as a round-robin event of the World's top 8 players.
- ATP Tour Championship - Cincinnati Ohio event held just before the U.S. Open.
- WTA Finals - Season ending women's championship event held in Singapore.
- Davis Cup - Founded in 1900, a round-robin tournament to determine the best men's national team in the World.
- Fed Cup - Founded in 1963, a round-robin tournament to determine the best women's national team in the World.