Billie Jean King defeated Rosemary Casals in the final, 6–4, 7–6(5–2) to win the women's singles tennis title at the 1971 US Open. It was her second US Open singles title and sixth major singles title overall. For the second time in her career, King did not lose a set during the tournament.
Margaret Court was the two-time reigning champion, but did not participate this year.
This tournament marked the first major in which future world No. 1 and 18-time major singles champion Chris Evert competed in the main draw; she lost to King in the semifinals. Evert was 16 years, 8 months and 19 days old at the time and competed in 19 consecutive US Opens until her retirement in 1989. She would make at least the semifinals in her first 16 US Opens, before being knocked out of the 1987 quarterfinals. Evert would make a seventeenth semifinal in 1988 and ending her career with only her second quarterfinal loss in 1989.
Seeds
The seeded players are listed below. Billie Jean King is the champion; others show the round in which they were eliminated.
- Billie Jean King (champion)
- Rosemary Casals (final)
- Virginia Wade (withdrew before the tournament began)
- Kerry Melville (semifinalist)
- Françoise Dürr (third round)
- Judy Tegart-Dalton (quarterfinalist)
- Nancy Richey (third round)
- Julie Heldman (third round)
Draw
Key
Final eight
Earlier rounds
Section 1
Section 2
Section 3
Section 4
External links
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| Grand Slam events | |
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| Virginia Slims Circuit |
- San Francisco (S, D)
- Long Beach (S, D)
- Milwaukee (S, D)
- Fort Lauderdale (S, D)
- Oklahoma City (S, D)
- Washington (S, D)
- Birmingham (S, D)
- Dallas (S, D)
- Philadelphia (S, D)
- San Juan (S, D)
- St. Petersburg (S, D)
- Tucson (S, D)
- Indianapolis 1 (S, D)
- Columbus (S, D)
- Denver (S, D)
- Newport (S, D)
- Oakland (S, D)
- Phoenix (S, D)
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| Grand Prix Circuit |
- Johannesburg (S, D)
- Rome (S, D)
- Bournemouth (S, D)
- Hamburg (S, D)
- Cincinnati (S, D)
- Indianapolis 2 (S, D)
- Toronto (S, D)
- New York (S, D)
- Atlanta (S, D)
- Tokyo 1 (S, D)
- Palm Harbor (S, D)
- Atlanta (S, D)
- Phoenix (S, D)
- Melbourne (S, D)
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| Non-tour events |
- Sydney (S, D)
- Auckland (S, D)
- Kitzbühel (S, D)
- London (S, D)
- Beckenham (S, D)
- Tokyo 2 (S, D)
- Tokyo 3 (S, D)
- Billingham (S, D)
- Edinburgh (S, D)
- Aberavon (S, D)
- Torquay (S, D)
- Nottingham (S, D)
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| Team events | |
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- Virginia Slims Championships (S, D)
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