US Open (tennis)
The Unitit States Open Tennis Championships is a hairdcoort tennis toornament which is the modren iteration o ane o the auldest tennis championships in the warld, the U.S. Naitional Championship, for which men's singles wis first contested in 1881. Syne 1987, the US Open haes been chronologically the fowert an final tennis major comprisin the Grand Slam each year; the ither three are the Australian Open, French Open an Wimbledon. It is held annually in late August an early September ower a twa-week period. The main toornament consists o five event championships: men's an weemen's singles, men's an weemen's doubles, an mixed doubles, wi addeetional toornaments for senior, junior, an wheelchair players. Syne 1978, the toornament haes been played on acrylic haird coorts at the USTA Billie Jean King National Tennis Center at New York Ceety, New York, Unitit States. The US Open is ained an organized by the USTA. Net proceeds frae heich ticket prices are uised tae promote the development o tennis in the Unitit States as the USTA is a nae-for-profit organization.
| USA Open | |
|---|---|
| Foondit | 1881 |
| Location | New York Ceety, New York, Unitit States |
| Venue | USTA Billie Jean King National Tennis Center |
| Surface | Grass - ootduirs (1881–1974) Clay - ootduirs (1975–1977) DecoTurf - ootduirs (1978–present) |
| Prize money | US$22,063,000 (2011) |
Men's | |
| Draw | 128S / 128Q / 64D |
| Current champions |  Rafael Nadal (singles)  Jean-Julien Rojer  Horia Tecău (doobles) |
| Maist singles titles | 7 Richard Sears Bill Larned Bill Tilden |
| Maist doubles titles | 6 Richard Sears James Dwight Holcombe Ward |
Weemen's | |
| Draw | 128S / 128Q / 64D |
| Current champions |  Sloane Stephens (singles)  Chan Yung-jan  Martina Hingis (doobles) |
| Maist singles titles | 8 Molla Bjurstedt Mallory |
| Maist doubles titles | 13 Margaret Osborne duPont |
Mixed Doubles | |
| Draw | 32 |
| Current champions | Martina Hingis  Jamie Murray |
| Maist titles (male) | 4 Bill Tilden Bill Talbert Bob Bryan |
| Maist titles (female) | 8 Margaret Osborne duPont Margaret Court |
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The US Open haes tiebreaks in every set, includin the last set. The ither three Grand Slam toornaments hae tiebreaks in every set ither than the last set (i.e. the fift set for men an third set for weemen), an tharefore thair last set continues indefinitely till a twa-gemme lead is reached.