Singles
2020 İstanbul Cup
Final
Champion	Patricia Maria Țig
Runner-up	Eugenie Bouchard
Score	2–6, 6–1, 7–6(7–4)
Details
Draw	30
Seeds	8
Events
Singles Doubles
← 2019 · İstanbul Cup · 2021 →

Petra Martić was the defending champion, but she chose not to participate as she was still competing at the 2020 US Open.^[1]

Patricia Maria Țig won her maiden WTA tour-level singles title, defeating Eugenie Bouchard in the final, 2–6, 6–1, 7–6^(7–4).^[2]

	Semifinals							Final
	Q	Eugenie Bouchard	6	6
		Paula Badosa	3	2
								Q	Eugenie Bouchard	6	1	64
									Patricia Maria Țig	2	6	77
	Q	Tereza Martincová	3	3
		Patricia Maria Țig	6	6

	First round							Second round							Quarterfinals							Semifinals
								1	S Kuznetsova	63	77	2
		V Tomova	2	4				Q	E Bouchard	77	65	6
	Q	E Bouchard	6	6											Q	E Bouchard	3	6	7
	PR	K Bondarenko	5	2												D Kovinić	6	4	5
		D Kovinić	7	6					D Kovinić	6	6
		V Kužmová	3	4				6	A Van Uytvanck	3	4
	6	A Van Uytvanck	6	6																		Q	E Bouchard	6	6
	3	P Hercog	6	6																			P Badosa	3	2
	WC	B Cengiz	2	3				3	P Hercog	7	6
		J Paolini	6	4	6				J Paolini	5	4
		S Vögele	1	6	3										3	P Hercog	6	3	4
		K Zavatska	1	2												P Badosa	4	6	6
		P Badosa	6	6					P Badosa	6	6
		S Sorribes Tormo	3						S Sorribes Tormo	1	4
	5	H Watson	2r

	First round							Second round							Quarterfinals							Semifinals
	7	Z Diyas	6	5	1
		A Sasnovich	3	7	6				A Sasnovich	65	6	6
	PR	AK Schmiedlová	7	1	6			PR	AK Schmiedlová	77	4	3
		K Juvan	5	6	4											A Sasnovich	2	3
		G Minnen	65	3											Q	T Martincová	6	6
	Q	T Martincová	77	6				Q	T Martincová	6	6
	WC	Ç Büyükakçay	4	6	5			4	C Garcia	1	4
	4	C Garcia	6	0	7																	Q	T Martincová	3	3
	8	M Doi	64	7	6																		PM Țig	6	6
	Q	E Perez	77	5	1			8	M Doi	2	0
	Q	O Danilović	3	5					PM Țig	6	6
		PM Țig	6	7												PM Țig	6	6
	WC	P Özgen	2	0											2	R Peterson	3	1
		M Gasparyan	6	6					M Gasparyan	2r
								2	R Peterson	3

	First round							Qualifying competition
	Alt	Ivana Jorović	2	69
	WC	Eugenie Bouchard	6	711
								WC	Eugenie Bouchard	6	6
								8	Leonie Küng	4	4
		Giulia Gatto-Monticone	77	3	3
	8	Leonie Küng	63	6	6

	First round							Qualifying competition
	Alt	Ellen Perez	77	79
		Arina Rodionova	64	67
								Alt	Ellen Perez	2	6	6
								7	Harriet Dart	6	1	3
		Başak Eraydın	3	6	0
	7	Harriet Dart	6	2	6

	First round							Qualifying competition
	Alt	Dejana Radanović	6	6
		Indy de Vroome	4	1
								Alt	Dejana Radanović	2	0
									Olga Danilović	6	6
		Olga Danilović	6	6
	Alt	Laura Ioana Paar	1	1

	First round							Qualifying competition
	4	Tereza Martincová	4
	WC	Zeynep Sönmez	1r
								4	Tereza Martincová	5	7	6
								6	Elisabetta Cocciaretto	7	5	3
		Bibiane Schoofs	1	77	5
	6	Elisabetta Cocciaretto	6	63	7

• Main draw
• Qualifying draw