- The US Open has been played on 3 different surfaces: it was originally played on grass until Forest Hills switched to Har-Tru clay courts in 1975. In 1978, the event moved from Forest Hills to its current home at Flushing Meadows, and the surface changed again, to the current DecoTurf.
Jimmy Connors is the only player to have won the US Open on all three surfaces.
- The main court is located at the 24,000-seat Arthur Ashe Stadium, named after Arthur Ashe, the African American tennis player who won the inaugural men’s final of the US Open in 1968.
Court Number 2 is Louis Armstrong Stadium, which stood as the main stadium until the completion of Ashe stadium. Court Number 3 is the Grandstand Stadium, which is attached to the Louis Armstrong Stadium.
-In 1970, the US Open was the first Grand Slam tournament to use the tie breaker. At the time, it was a 9 point playoff with the first player to 5 winning. The US Open is still the only Grand Slam tournament to use tie breakers in the third set for women and the fifth set for men.
-In 1975, the US Open became the first Grand Slam tournament to hold matches at night. Fewer than 5,000 fans turned out to watch the very first night match
- Tracy Austin is the youngest singles champion. She was 16 years 8 months and 28 days when she won in 1979. Besides Austin, Maureen Connolly and Martina Hingis also won the women’s singles title before their 17th birthdays.
- Pete Sampras is the male youngest singles champion. He was 19 years and 28 days when he beat Andre Agassi in 1990.
- The longest match on record in the history of the U.S. Championships came on Sept. 12, 1992, when Stefan Edberg and Michael Chang played for five hours and 26 minutes in the men’s singles semifinals, before Edberg won 6-7(3), 7-5, 7-6(3), 5-7, 6-4.
- In 2006, the US Open became the first Grand Slam tournament to implement instant replay reviews of calls, using Hawk-Eye.
- In 2007, Roger Federer became the first men’s singles player to win 4 consecutive US Open.
