2021 Porsche Tennis Grand Prix – Singles

Singles
2021 Porsche Tennis Grand Prix
Final
Champion	Ashleigh Barty
Runner-up	Aryna Sabalenka
Score	3–6, 6–0, 6–3
Details
Draw	28 (6 Q / 3 WC )
Seeds	8
Events
Singles Doubles
← 2019 · Porsche Tennis Grand Prix · 2022 →

Ashleigh Barty defeated Aryna Sabalenka in the final, 3–6, 6–0, 6–3 to win the women's singles tennis title at the 2021 Stuttgart Open. It marked her 11th career Women's Tennis Association (WTA) singles title and her second on clay. She became the first reigning world No. 1 to win the title since Justine Henin in 2007.^[1]

Petra Kvitová was the defending champion from when the tournament was last held in 2019,^[2] but lost in the quarterfinals to Elina Svitolina.^[3]

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

	Semifinals							Final
	1	Ashleigh Barty	4	77	6
	4	Elina Svitolina	6	65	2
								1	Ashleigh Barty	3	6	6
								5	Aryna Sabalenka	6	0	3
	5	Aryna Sabalenka	6	6
	2	Simona Halep	3	2

	First round							Second round							Quarterfinals							Semifinals
								1	A Barty	6	7
		L Siegemund	6	3	6				L Siegemund	0	5
	Q	M Barthel	4	6	1										1	A Barty	2	6	7
		J Ostapenko	6	7											6	Ka Plíšková	6	1	5
	Q	S Vögele	4	5					J Ostapenko	79	4	3
	LL	T Korpatsch	5	6	3			6	Ka Plíšková	67	6	6
	6	Ka Plíšková	7	3	6																	1	A Barty	4	77	6
																						4	E Svitolina	6	65	2
								4	E Svitolina	77	6
		A Kerber	6	6					A Kerber	64	3
	LL	E Gorgodze	2	2											4	E Svitolina	64	7	6
		M Sakkari	6	6											7	P Kvitová	77	5	2
	WC	A Petkovic	2	2					M Sakkari	3	6	3
		J Brady	4	3				7	P Kvitová	6	3	6
	7	P Kvitová	6	6

	First round							Second round							Quarterfinals							Semifinals
	5	A Sabalenka	6	6
		S Zhang	2	2				5	A Sabalenka	6	6
	Q	U Eikeri	2	0				Q	A-L Friedsam	4	2
	Q	A-L Friedsam	6	6											5	A Sabalenka	7	4	6
	Q	J Middendorf	2	3												A Kontaveit	5	6	1
		A Kontaveit	6	6					A Kontaveit	7	6
								3	S Kenin	5	4
																						5	A Sabalenka	6	6
	8	B Bencic	6	6																		2	S Halep	3	2
	Q	N Schunk	4	2				8	B Bencic	1	5
		E Alexandrova	4	6	6				E Alexandrova	6	7
		K Muchová	6	2	3											E Alexandrova	1	4
		M Bouzková	1	66											2	S Halep	6	6
		M Vondroušová	6	78					M Vondroušová	1	3
								2	S Halep	6	6

	First round							Qualifying competition
	1	Margarita Gasparyan	3	4
	WC	Noma Noha Akugue	6	6
								WC	Noma Noha Akugue	0	4
								WC	Nastasja Schunk	6	6
	WC	Nastasja Schunk	6	6
	8	Daniela Seguel	4	4

	First round							Qualifying competition
	2	Varvara Gracheva	6	7
		Bethanie Mattek-Sands	2	5
								2	Varvara Gracheva	2	6	3
								7	Mona Barthel	6	3	6
		Martina Caregaro	1	4
	7	Mona Barthel	6	6

	First round							Qualifying competition
	Alt	Angelica Moratelli	6	7
		Tena Lukas	0	5
								Alt	Angelica Moratelli	3	4
									Ulrikke Eikeri	6	6
		Ulrikke Eikeri	3	6	6
	11	Antonia Lottner	6	3	3

	First round							Qualifying competition
	4	Anna-Lena Friedsam	6	4	6
		Stephanie Wagner	4	6	3
								4	Anna-Lena Friedsam	6	6
									Ekaterine Gorgodze	3	1
		Ekaterine Gorgodze	6	6
	10	Indy de Vroome	2	2

	First round							Qualifying competition
	5	Stefanie Vögele	6	6
	PR	Anna Zaja	1	3
								5	Stefanie Vögele	6	6
									Katharina Gerlach	3	1
		Katharina Gerlach	6	7
	12	Laura Ioana Paar	3	5

	First round							Qualifying competition
	6	Tamara Korpatsch	2	6	6
	WC	Alexandra Vecic	6	4	2
								6	Tamara Korpatsch	6	3	0
								WC	Julia Middendorf	2	6	6
	WC	Julia Middendorf	4	6	6
	9	Jana Fett	6	1	3

• Main draw
• Qualifying draw