2025 Porsche Tennis Grand Prix – Singles

Singles
2025 Porsche Tennis Grand Prix
Champion	Jeļena Ostapenko
Runner-up	Aryna Sabalenka
Score	6–4, 6–1
Draw	28 (4WC, 4Q)
Seeds	8

Jeļena Ostapenko defeated Aryna Sabalenka in straight sets to win the title at the 2025 Stuttgart Open.^[1] It was her ninth WTA Tour singles title, and her first singles final and title on clay since the 2017 French Open. She became the first unseeded champion at the tournament since Laura Siegemund in 2017. Sabalenka scored her fourth runner-up finish out of five editions of the tournament.

En route to the title, Ostapenko defeated the top two ranked players in the world. She ran her head-to-head record against Iga Świątek to six in a row with no loss to the Pole, having defeated her on every surface during six years^[2] while her win against Sabalenka was the first one in four meetings in the timespan of six years too.^[1]

Elena Rybakina was the reigning champion,^[3] but chose not to participate this year.^[4]

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

	Semifinals							Final
	1	Aryna Sabalenka	7	6
	5	Jasmine Paolini	5	4
								1	Aryna Sabalenka	4	1
									Jeļena Ostapenko	6	6
		Ekaterina Alexandrova	4	4
		Jeļena Ostapenko	6	6

	First round							Second round							Quarterfinals							Semifinals
								1	A Sabalenka	w/o
		A Potapova	2	710	6				A Potapova
		C Tauson	6	68	3										1	A Sabalenka	6	6
	Q	A Sasnovich	63	2												E Mertens	4	1
		E Mertens	77	6					E Mertens	6	77
	Q	V Kudermetova	7	2	3			8	D Shnaider	2	65
	8	D Shnaider	5	6	6																	1	A Sabalenka	7	6
																						5	J Paolini	5	4
								4	C Gauff	6	6
	WC	T Maria	6	62	4			LL	E Seidel	1	1
	LL	E Seidel	3	77	6										4	C Gauff	4	3
	WC	J Niemeier	4	6	6										5	J Paolini	6	6
	WC	L Siegemund	6	3	4			WC	J Niemeier	1	5
	WC	E Lys	2	1				5	J Paolini	6	7
	5	J Paolini	6	6

	First round							Second round							Quarterfinals							Semifinals
	6	M Andreeva	6	1
	LL	E Andreeva	2	0r				6	M Andreeva	3	2
		E Alexandrova	6	6					E Alexandrova	6	6
		L Samsonova	3	3												E Alexandrova	6	6
		M Fręch	7	4	77										3	J Pegula	0	4
	LL	S Errani	5	6	65				M Fręch	1	1
								3	J Pegula	6	6
																							E Alexandrova	4	4
	7	E Navarro	6	6																			J Ostapenko	6	6
		B Haddad Maia	3	0				7	E Navarro	5	6	2
		J Ostapenko	6	3					J Ostapenko	7	3	6
	Q	D Yastremska	3	0r												J Ostapenko	6	3	6
		D Vekić	62	4											2	I Świątek	3	6	2
	Q	J Fett	77	6				Q	J Fett	2	2
								2	I Świątek	6	6

	First round							Qualifying competition
	1	Dayana Yastremska	6	6
	PR	Ana Konjuh	1	4
								1	Dayana Yastremska	6	6
								6	Ella Seidel	3	4
	PR	Yanina Wickmayer	1	4
	6	Ella Seidel	6	6

	First round							Qualifying competition
	2	Veronika Kudermetova	6	6
		Kathinka von Deichmann	3	2
								2	Veronika Kudermetova	6	6
								8	Sara Errani	1	2
	WC	Nastasja Schunk	6	4	3
	8	Sara Errani	2	6	6

	First round							Qualifying competition
	3	Erika Andreeva	6	6
	WC	Mariella Thamm	3	4
								3	Erika Andreeva	1	4
								5	Aliaksandra Sasnovich	6	6
		Louisa Chirico	0	4
	5	Aliaksandra Sasnovich	6	6

	First round							Qualifying competition
	4	Yuliia Starodubtseva	64	3
		Jana Fett	77	6
									Jana Fett	65	77	77
									Rebeka Masarova	77	64	65
		Rebeka Masarova	6	6
	Alt	Zhang Shuai	2	1

• Main draw
• Qualifying draw