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, the first woman in the Open Era to do so in singles. It was her fourth US singles title and record 20th major singles title, surpassing Helen Wills' all-time tally.

Women's singles
1970 US Open
Champion	Margaret Court
Runner-up	Rosie Casals
Score	6–2, 2–6, 6–1
Draw	64
Seeds	8

Main article: 1970 US Open (tennis)

Seeds

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

Key

• Q = Qualifier
• WC = Wild card
• LL = Lucky loser
• Alt = Alternate
• ITF = ITF entry
• PR = Protected ranking
• SR = Special ranking
• SE = Special exempt
• JE = Junior exempt
• JR = Junior Accelerator Programme entrant
• CO = College Accelerator Programme entrant
• NG = Next Gen Accelerator Program entrant
• w/o = Walkover
• r = Retired
• d = Defaulted

Finals

	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

Section 1

	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

	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

Section 3

	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

	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

External links

• 1970 US Open – Women's draws and results at the International Tennis Federation

Preceded by 1970 Wimbledon Championships – Women's singles

Grand Slam women's singles

Succeeded by 1971 Australian Open – Women's singles