2021 İstanbul Cup – Singles

Sorana Cîrstea defeated Elise Mertens in the final, 6–1, 7–6^(7–3) to win the women's singles tennis title at the 2021 İstanbul Cup. This was Cîrstea's first title since 2008. Cîrstea did not drop a set throughout the tournament.

Singles
2021 İstanbul Cup
Champion	Sorana Cîrstea
Runner-up	Elise Mertens
Score	6–1, 7–6(7–3)
Draw	32 (6 Q / 4 WC)
Seeds	8

Main article: 2021 İstanbul Cup

Patricia Maria Țig was the defending champion, but she chose not to participate this year.

Seeds

1. Elise Mertens (final)
2. Petra Martić (first round)
3. Veronika Kudermetova (semifinals)
4. Daria Kasatkina (second round)
5. Barbora Krejčíková (second round)
6. Anastasia Pavlyuchenkova (first round)
7. Zheng Saisai (withdrew)
8. Wang Qiang (second round)

Draw

Key

• Q = Qualifier
• WC = Wild card
• LL = Lucky loser
• Alt = Alternate
• SE = Special exempt
• PR = Protected ranking
• ITF = ITF entry
• JE = Junior exempt
• w/o = Walkover
• r = Retired
• d = Defaulted
• SR = Special ranking

Finals

	Semifinals							Final
	1/WC	Elise Mertens	6	6
	3	Veronika Kudermetova	1	4
								1/WC	Elise Mertens	1	63
									Sorana Cîrstea	6	77
		Marta Kostyuk	4	4
		Sorana Cîrstea	6	6

Top half

	First round							Second round							Quarterfinals							Semifinals
	1/WC	E Mertens	6	6
	Q	L Arruabarrena	2	0				1/WC	E Mertens	6	4	6
	Q	N Párrizas Díaz	4	6	3				V Golubic	4	6	1
		V Golubic	6	2	6										1/WC	E Mertens	6	6
		K Siniaková	77	3	6											K Siniaková	4	4
	Q	C Bucșa	65	6	3				K Siniaková	6	3	6
		K Mladenovic	6	6					K Mladenovic	4	6	4
	LL	B Haas	4	3																		1/WC	E Mertens	6	6
	3	V Kudermetova	6	3	77																	3	V Kudermetova	1	4
		B Pera	4	6	64			3	V Kudermetova	6	6
		Z Diyas	4	4					K Kanepi	4	3
		K Kanepi	6	6											3	V Kudermetova	2	6	6
		N Hibino	3	3												A Bogdan	6	3	3
		A Bogdan	6	6					A Bogdan	6	6
	WC	Ç Büyükakçay	710	2	0			5	B Krejčíková	3	3
	5	B Krejčíková	68	6	6

Bottom half

	First round							Second round							Quarterfinals							Semifinals
	8	Q Wang	4	6	6
	Q	A Gasanova	6	1	2			8	Q Wang	1	4
	WC	A Konjuh	7	6				WC	A Konjuh	6	6
		S Errani	5	2											WC	A Konjuh	5	6	3
	Q	K Rakhimova	4	3												M Kostyuk	7	4	6
		M Kostyuk	6	6					M Kostyuk	6	7
	Q	T Mrdeža	1	0				4	D Kasatkina	3	5
	4	D Kasatkina	6	6																			M Kostyuk	4	4
	6	A Pavlyuchenkova	62	710	4																		S Cîrstea	6	6
		A Potapova	77	68	6				A Potapova	66	4
		K Kozlova	4	66					S Cîrstea	78	6
		S Cîrstea	6	78												S Cîrstea	6	0
	WC	V Zvonareva	6	6												F Ferro	4	0r
		P Hercog	3	3				WC	V Zvonareva	3	3
		F Ferro	7	6					F Ferro	6	6
	2	P Martić	5	2

Qualifying

Seeds

1. Océane Dodin (first round)
2. Kamilla Rakhimova (qualified)
3. Jaqueline Cristian (qualifying competition)
4. Leonie Küng (first round)
5. Barbara Haas (qualifying competition, lucky loser)
6. Harmony Tan (qualifying competition)
7. Nuria Párrizas Díaz (qualified)
8. Cristina Bucșa (qualified)
9. Lara Arruabarrena (qualified)
10. Anastasia Gasanova (qualified)
11. Mariam Bolkvadze (qualifying competition)
12. Liang En-shuo (first round)

Qualifiers

1. Tereza Mrdeža
2. Kamilla Rakhimova
3. Cristina Bucșa
4. Anastasia Gasanova
5. Nuria Párrizas Díaz
6. Lara Arruabarrena

Lucky loser

1. Barbara Haas

Draw

First qualifier

	First round							Qualifying competition
	1	Océane Dodin	63	6	0
		Tereza Mrdeža	77	3	6
									Tereza Mrdeža	6	6
									Irene Burillo Escorihuela	4	2
		Irene Burillo Escorihuela	6	6
	12	Liang En-shuo	1	4

Second qualifier

	First round							Qualifying competition
	2	Kamilla Rakhimova	6	1	6
		Tessah Andrianjafitrimo	2	6	1
								2	Kamilla Rakhimova	6	6
								11	Mariam Bolkvadze	4	3
		Yuliya Hatouka	4	4
	11	Mariam Bolkvadze	6	6

Third qualifier

	First round							Qualifying competition
	3	Jaqueline Cristian	6	6
		Pemra Özgen	4	3
								3	Jaqueline Cristian	1	3
								8	Cristina Bucșa	6	6
		Dalila Jakupović	1	2
	8	Cristina Bucșa	6	6

Fourth qualifier

	First round							Qualifying competition
	4	Leonie Küng	3	6	3
	WC	Nikola Bartůňková	6	4	6
								WC	Nikola Bartůňková	4	7	3
								10	Anastasia Gasanova	6	5	6
		Irina Fetecău	2	3
	10	Anastasia Gasanova	6	6

Fifth qualifier

	First round							Qualifying competition
	5	Barbara Haas	6	7
	WC	Zeynep Sönmez	3	5
								5	Barbara Haas	6	1	0
								7	Nuria Párrizas Díaz	2	6	6
	WC	İpek Öz	3	4
	7	Nuria Párrizas Díaz	6	6

Sixth qualifier

	First round							Qualifying competition
	6	Harmony Tan	61	6	6
		Dalma Gálfi	77	3	1
								6	Harmony Tan	3	3
								9	Lara Arruabarrena	6	6
	WC	Berfu Cengiz	5	3
	9	Lara Arruabarrena	7	6

External links

• Main Draw
• Qualifying Draw