2011 Rogers Cup – Women's singles

Serena Williams defeated Samantha Stosur in the final, 6–4, 6–2 to win the women's singles tennis title at the 2011 Canadian Open.^[1] It was her second Canadian Open title.

Caroline Wozniacki was the defending champion, but lost to Roberta Vinci in the second round.

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

	Quarterfinals							Semifinals							Final
		Roberta Vinci	4	1
	10	Samantha Stosur	6	6
								10	Samantha Stosur	6	5	6
								13	Agnieszka Radwańska	2	7	2
	13	Agnieszka Radwańska	6	6
	11	Andrea Petkovic	4	3
															10	Samantha Stosur	4	2
																Serena Williams	6	6
	Q	Galina Voskoboeva	1	2
	4	Victoria Azarenka	6	6
								4	Victoria Azarenka	3	3
									Serena Williams	6	6
		Lucie Šafářová	6	3	2
		Serena Williams	4	6	6

	First round							Second round							Third round							Quarterfinals
								1	C Wozniacki	4	5
		Y Wickmayer	4	2					R Vinci	6	7
		R Vinci	6	6												R Vinci	77	6
	Q	S Zhang	1	1												A Ivanovic	63	2
		A Ivanovic	6	6					A Ivanovic	6	6
	Q	I Benešová	7	4	1			Q	I Benešová	3	2
	16	D Cibulková	5	6	3r																		R Vinci	4	1
	10	S Stosur	4	6	6																	10	S Stosur	6	6
		A Morita	6	2	3			10	S Stosur	6	6
	WC	A Wozniak	6	6				WC	A Wozniak	3	4
		S Pe'er	1	0											10	S Stosur	6	6
		S Peng	6	7											6	N Li	2	4
	LL	L Domínguez Lino	1	5					S Peng
								6	N Li	w/o

	First round							Second round							Third round							Quarterfinals
								3	V Zvonareva	7	6
		J Gajdošová	1	2					N Petrova	5	4
		N Petrova	6	6											3	V Zvonareva	4	64
	Q	P Martić	1	6	6										13	A Radwańska	6	77
		L Hradecká	6	4	4			Q	P Martić	3	3
		E Vesnina	4	1				13	A Radwańska	6	6
	13	A Radwańska	6	6																		13	A Radwańska	6	6
	11	A Petkovic	6	6																		11	A Petkovic	4	3
	WC	E Bouchard	2	2				11	A Petkovic	6	7
		K Zakopalová	3	1				Q	G Arn	4	5
	Q	G Arn	6	6											11	A Petkovic	6	6
		A Medina Garrigues	7	6											7	P Kvitová	1	2
		S Errani	5	1					A Medina Garrigues	63	3
								7	P Kvitová	77	6

	First round							Second round							Third round							Quarterfinals
								5	M Sharapova	6	7
	Q	B Jovanovski	2					Q	B Jovanovski	1	5
		J Dokić	0	r											5	M Sharapova	3	5
		F Pennetta	6	6											Q	G Voskoboeva	6	7
		M Kirilenko	3	1					F Pennetta	6	3	2
	Q	G Voskoboeva	6	6				Q	G Voskoboeva	2	6	6
	9	M Bartoli	3	3																		Q	G Voskoboeva	1	2
	14	A Pavlyuchenkova	6	4	1																	4	V Azarenka	6	6
	Q	MJ Martínez Sánchez	3	6	6			Q	MJ Martínez Sánchez	7	6
		D Hantuchová	6	6					D Hantuchová	5	2
		G Dulko	3	4											Q	MJ Martínez Sánchez	1	2
	WC	S Dubois	77	6											4	V Azarenka	6	6
	Q	K Wörle	64	1				WC	S Dubois	0	0
								4	V Azarenka	6	6

	First round							Second round							Third round							Quarterfinals
								8	F Schiavone	6	6
		E Makarova	78	6					E Makarova	1	3
		R Marino	66	4											8	F Schiavone	3	3
		L Šafářová	6	4	6											L Šafářová	6	6
	Q	P Hercog	3	6	3				L Šafářová	6	6
	Q	S Halep	4	6	6			Q	S Halep	2	4
	12	S Kuznetsova	6	4	3																		L Šafářová	6	3	2
	15	J Janković	1	3																			S Williams	4	6	6
		J Görges	6	6					J Görges	1	67
	PR	A Bondarenko	0	3					S Williams	6	79
		S Williams	6	6												S Williams	4	6	6
	Q	A Brianti	2	1											Q	J Zheng	6	3	3
	Q	J Zheng	6	6				Q	J Zheng	3	2
								2	K Clijsters	6	1r

• Main draw and Qualifying draw