2021 Western & Southern Open – Women's singles

Women's singles
2021 Western & Southern Open
Champion	Ashleigh Barty
Runner-up	Jil Teichmann
Score	6–3, 6–1
Draw	56 (8 Q / 5 WC )
Seeds	16

Ashleigh Barty defeated Jil Teichmann in the final, 6–3, 6–1 to win the women's singles tennis title at the 2021 Cincinnati Masters. Barty did not drop a set en route to her first Cincinnati Masters title.^[1] It was her fifth and last title of the season, her third WTA 1000 title, and her 13th career WTA Tour singles title.^[2]

Victoria Azarenka was the defending champion, but lost in the third round to Barty.^[3]

Angelique Kerber contested her 1000th match in her professional career in the quarterfinals against Petra Kvitová; she won the match after Kvitová retired.

This was the final tournament in which former world No. 4 and British No. 1 Johanna Konta competed before her retirement. She was defeated in the first round by Karolína Muchová.

The top eight seeds received a bye into the second round.

Click on the seed number of a player to go to their draw section.

	Quarterfinals							Semifinals							Final
	1	Ashleigh Barty	6	6
	9	Barbora Krejčíková	2	4
								1	Ashleigh Barty	6	7
									Angelique Kerber	2	5
		Angelique Kerber	6	3
	11	Petra Kvitová	4	3r
															1	Ashleigh Barty	6	6
															WC	Jil Teichmann	3	1
	5	Karolína Plíšková	7	2
		Paula Badosa	5	0r
								5	Karolína Plíšková	2	4
								WC	Jil Teichmann	6	6
	10	Belinda Bencic	3	2
	WC	Jil Teichmann	6	6

	First round							Second round							Third round							Quarterfinals
								1	A Barty	6	77
	Q	A Sasnovich	2	6	1			Q	H Watson	4	63
	Q	H Watson	6	3	6										1	A Barty	6	6
		A Riske	6	6											14	V Azarenka	0	2
	Q	L Fernandez	2	2					A Riske	2	5
	Q	L Samsonova	2	3				14	V Azarenka	6	7
	14	V Azarenka	6	6																		1	A Barty	6	6
	9	B Krejčíková	6	6																		9	B Krejčíková	2	4
		D Kasatkina	3	2				9	B Krejčíková	6	77
	WC	C McNally	63	61					D Yastremska	1	65
		D Yastremska	77	77											9	B Krejčíková	6	65	6
	Q	C Garcia	79	4	6										8	G Muguruza	1	77	2
	WC	S Stephens	67	6	4			Q	C Garcia	4	3
								8	G Muguruza	6	6

	First round							Second round							Third round							Quarterfinals
								4	E Svitolina	5	6	4
		M Sakkari	2	2					A Kerber	7	2	6
		A Kerber	6	6												A Kerber	4	6	7
		J Ostapenko	7	6												J Ostapenko	6	2	5
		T Zidanšek	5	1					J Ostapenko	62	5
		E Alexandrova	3	63				13	J Brady	77	4r
	13	J Brady	6	77																			A Kerber	6	3
	11	P Kvitová	7	6																		11	P Kvitová	4	3r
		M Keys	5	4				11	P Kvitová	6	6
		V Kudermetova	6	6					V Kudermetova	2	4
	Q	J Paolini	3	2											11	P Kvitová	6	6
		O Jabeur	6	4	7											O Jabeur	1	2
		A Kontaveit	2	6	5				O Jabeur	6	6
								6	I Świątek	3	3

	First round							Second round							Third round							Quarterfinals
								5	Ka Plíšková	6	6
		Y Putintseva	6	6					Y Putintseva	3	2
	Q	S Zhang	2	0											5	Ka Plíšková	6	77
		J Pegula	6	6												J Pegula	4	65
	SE	C Giorgi	2	2					J Pegula	w/o
		M Linette	4	6	1			12	S Halep
	12	S Halep	6	3	6																	5	Ka Plíšková	7	2
	15	E Mertens	6	6																			P Badosa	5	0r
		N Podoroska	3	4				15	E Mertens	3	2
	WC	S Stosur	3	3					E Rybakina	6	6
		E Rybakina	6	6												E Rybakina	2	65
		P Badosa	4	6	711											P Badosa	6	77
		P Martić	6	4	69				P Badosa	5	6	77
								3	A Sabalenka	7	2	64

	First round							Second round							Third round							Quarterfinals
								7	B Andreescu	4	2
		K Muchová	3	77	6				K Muchová	6	6
		J Konta	6	65	2											K Muchová	5	1r
		D Collins	4	1r											10	B Bencic	7	2
		S Rogers	6	2					S Rogers	61	1
		M Vondroušová	3	5				10	B Bencic	77	6
	10	B Bencic	6	7																		10	B Bencic	3	2
	LL	R Peterson	4	1																		WC	J Teichmann	6	6
	WC	B Pera	6	6				WC	B Pera	1	4
	WC	J Teichmann	6	6				WC	J Teichmann	6	6
		S Cîrstea	2	0											WC	J Teichmann	3	6	6
	Q	S-w Hsieh	1	2											2	N Osaka	6	3	3
		C Gauff	6	6					C Gauff	6	3	4
								2	N Osaka	4	6	6

	First round							Qualifying competition
	1	Viktorija Golubic	2	6	0
		Fiona Ferro	6	2	6
									Fiona Ferro	6	3	0
								9	Caroline Garcia	3	6	6
	WC	Alycia Parks	3	6	3
	9	Caroline Garcia	6	1	6

	First round							Qualifying competition
	2	Zhang Shuai	6	6
	PR	Yaroslava Shvedova	2	4
								2	Zhang Shuai	7	4	6
								15	Marie Bouzková	5	6	0
		Polona Hercog	6	2	3
	15	Marie Bouzková	4	6	6

	First round							Qualifying competition
	3	Liudmila Samsonova	6	7
		Vera Zvonareva	2	5
								3	Liudmila Samsonova	7	77
									Anna Blinkova	5	61
		Anna Blinkova	6	6
	16	Camila Osorio	3	0

	First round							Qualifying competition
	4	Rebecca Peterson	7	6
		Astra Sharma	5	3
								4	Rebecca Peterson	4	6	3
								11	Heather Watson	6	4	6
	WC	Katie Volynets	7	2	2
	11	Heather Watson	5	6	6

	First round							Qualifying competition
	Alt	Kristie Ahn	6	2	2
		Lauren Davis	4	6	6
									Lauren Davis	0	4
								14	Hsieh Su-wei	6	6
	WC	Peyton Stearns	63	4
	14	Hsieh Su-wei	77	6

	First round							Qualifying competition
	6	Donna Vekić	6	6
		Christina McHale	4	1
								6	Donna Vekić	62	2
									Jasmine Paolini	77	6
		Jasmine Paolini	6	2
	10	Anastasija Sevastova	1	1r

	First round							Qualifying competition
	7	Kristina Mladenovic	4	5
		Aliaksandra Sasnovich	6	7
									Aliaksandra Sasnovich	7	6
								12	Andrea Petkovic	5	2
	WC	Emma Navarro	63	4
	12	Andrea Petkovic	77	6

	First round							Qualifying competition
	8	Tereza Martincová	3	5
		Elena-Gabriela Ruse	6	7
									Elena-Gabriela Ruse	2	0
								13	Leylah Annie Fernandez	6	6
		Irina-Camelia Begu	3	3
	13	Leylah Annie Fernandez	6	6

• Main draw
• Qualifying draw