1970 US Open – Women's singles

Defending champion Margaret Court defeated Rosie Casals in the final, 6–2, 2–6, 6–1 to win the women's singles tennis title at the 1970 US Open. With the win, Court completed the Grand Slam, becoming the first woman in the Open Era to do so. It was her record-breaking 20th major singles title, surpassing Helen Wills Moody's all-time tally.

Women's singles
1970 US Open
Final
ChampionAustralia Margaret Court
Runner-upUnited States Rosie Casals
Score6–2, 2–6, 6–1
Details
Draw64
Seeds8
Events
Singles men women boys girls
Doubles men women mixed boys girls
WC Singles men women quad
WC Doubles men women quad
Legends men women mixed
← 1969 · US Open · 1971 →

Seeds

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  1.   Margaret Court (champion)
  2.   Rosie Casals (final)
  3.   Nancy Richey (semifinals)
  4.   Françoise Dürr (quarterfinals)
  5.   Virginia Wade (semifinals)
  6.   Kerry Melville (quarterfinals)
  7.   Karen Krantzcke (withdrew before the tournament began)
  8.   Judy Dalton (third round)

Draw

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Finals

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Quarterfinals Semifinals Final
               
1   Margaret Court 6 6
    Helen Gourlay 2 2
1   Margaret Court 6 6
3   Nancy Richey 1 3
3   Nancy Richey 6 6
    Lesley Hunt 4 4
1   Margaret Court 6 2 6
2   Rosie Casals 2 6 1
5   Virginia Wade 5 6 6
4   Françoise Dürr 7 4 0
5   Virginia Wade 2 7 2
2   Rosie Casals 6 6 6
6   Kerry Melville 4 6 4
2   Rosie Casals 6 4 6

Top half

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Section 1

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First round Second round Third round Quarterfinals
1   M Court 6 6
  P Austin 1 0 1   M Court 6 6
  P Hogan 7 3 6   P Hogan 1 1
  J Newberry 5 6 1 1   M Court 6 6
  T Faulkner 6 5 6   T Faulkner 0 2
  C Murakami 2 7 4   T Faulkner 6 6
  P Stewart 6 2 0   M Gengler 3 4
  M Gengler 3 6 6 1   M Court 6 6
  M Cooper 4 2   H Gourlay 2 2
  H Gourlay 6 6   H Gourlay 6 7
  C Graebner 6 6   C Graebner 3 5
  L Tenney 2 3   H Gourlay 6 6
  B-A Hansen 5 4 8   J Dalton 4 2
  K Pigeon 7 6   K Pigeon 6 6 4
  P Reese 1 2 8   J Dalton 7 0 6
8   J Dalton 6 6

Section 2

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First round Second round Third round Quarterfinals
3   N Richey 6 6
  L duPont 2 3 3   N Richey 6 6
  G Chanfreau 6 3 6   G Chanfreau 3 3
  D Carter 3 6 3 3   N Richey 7 2 6
  S Holdsworth 1 5   O Morozova 5 6 2
  S Johnson 6 7   S Johnson 1 3
  L Liem 7 4 1   O Morozova 6 6
  O Morozova 5 6 6 3   N Richey 6 6
  M Rodríguez   L Hunt 4 4
  C Sandberg w / o   C Sandberg 6 6
  ME Guzmán   C Capozzi 2 2
  C Capozzi w / o   C Sandberg 4 3
  L Hunt 6 6   L Hunt 6 6
  K Kemmer 3 1   L Hunt 6 6
  P Farmer   P Cody 1 3
  P Cody w / o

Bottom half

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Section 3

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First round Second round Third round Quarterfinals
5   V Wade 6 6
  T O'Shaughnessy 1 1 5   V Wade 7 6
  I Bentzer 2 2   P Bartkowicz 6 1
  P Bartkowicz 6 6 5   V Wade 6 6 6
  D Hard 3 6 6   S Walsh 3 7 1
  V Ziegenfuss 6 4 4   D Hard 6 1 5
  S Walsh 6 4 6   S Walsh 3 6 7
  E Emmanuel 1 6 2 5   V Wade 5 6 6
  M Struthers 4 6 2 4   Dürr 7 4 0
  F Footman 6 4 6   F Footman 6 6
  J O'Hara 6 6 6   J O'Hara 7 7
  L Kaligis 7 2 3   J O'Hara 1 1
  N Truman 6 6 4   Dürr 6 6
  S Vinton 2 0   N Truman 1 0
  M-A Curtis 5 0 4   Dürr 6 6
4   Dürr 7 6

Section 4

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First round Second round Third round Quarterfinals
6   K Melville 6 6
  B Vest 2 2 6   K Melville 6 7
  S Stap 6 6   S Stap 4 5
  S Barman 0 1 6   K Melville 7 7
  L Tuero 5 6 5   P Walkden 6 5
  P Walkden 7 3 7   P Walkden 6 6
  E Pande 6 6   E Pande 4 1
  C Molesworth 4 3 6   K Melville 4 6 4
  P Teeguarden 6 6 2   R Casals 6 4 6
  K Harris 1 2   P Teeguarden 6 6
  G Hansen 5 4   K Harter 1 4
  K Harter 7 6   P Teeguarden 5 4
  M Kroschina 3 4 2   R Casals 7 6
  C Martinez 6 6   C Martinez 0 3
  C Spinoza 3 0 2   R Casals 6 6
2   R Casals 6 6
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Preceded by Grand Slam women's singles Succeeded by