2024 San Diego Open – Singles

Singles
2024 San Diego Open
Champion	Katie Boulter
Runner-up	Marta Kostyuk
Score	5–7, 6–2, 6–2
Draw	28 (4WC, 6Q)
Seeds	8

Katie Boulter defeated Marta Kostyuk in the final, 5–7, 6–2, 6–2 to win the singles tennis title at the 2024 San Diego Open.^[1][2] It was her second WTA Tour title and first WTA 500 title.

Barbora Krejčíková was the reigning champion,^[3] but chose not to compete this year.

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

	Semifinals							Final
	1	Jessica Pegula	64	1
	6	Marta Kostyuk	77	6
								6	Marta Kostyuk	7	2	2
									Katie Boulter	5	6	6
	3	Emma Navarro	3	1
		Katie Boulter	6	6

	First round							Second round							Quarterfinals							Semifinals
								1	J Pegula	6	6
	Q	J Niemeier	6	6				Q	J Niemeier	0	4
		V Gracheva	3	0											1	J Pegula	6	2	6
	WC	C Wozniacki	6	4	1											A Blinkova	1	6	2
		A Blinkova	1	6	6				A Blinkova	78	6
		C Dolehide	4	7	1			5	D Yastremska	66	2
	5	D Yastremska	6	5	6																	1	J Pegula	64	1
																						6	M Kostyuk	77	6
								4	A Pavlyuchenkova	4	77	6
		C Tauson	2	6	1				Xin Wang	6	65	2
		Xin Wang	6	2	6										4	A Pavlyuchenkova	6	4	3
	WC	T Preston	6	4	6										6	M Kostyuk	3	6	6
		M Fręch	4	6	1			WC	T Preston	4	3
	Q	A Li	4	6	2			6	M Kostyuk	6	6
	6	M Kostyuk	6	4	6

	First round							Second round							Quarterfinals							Semifinals
	8	L Fernandez	79	0r
		T Maria	67	4					T Maria	7	62	2
	Q	D Saville	6	6				Q	D Saville	5	77	6
		L Zhu	3	3											Q	D Saville	4	2
	Q	M Hontama	3	1											3	E Navarro	6	6
		K Siniaková	6	6					K Siniaková	3	6	1
								3	E Navarro	6	3	6
																						3	E Navarro	3	1
	7	D Vekić	7	6																			K Boulter	6	6
	WC	K Hui	5	2				7	D Vekić	6	3	6
	Q	M Melnikova	4	7	1			Q	M Stakusic	4	6	3
	Q	M Stakusic	6	5	6										7	D Vekić	4	3
		L Tsurenko	3	1												K Boulter	6	6
		K Boulter	6	6					K Boulter	3	6	6
								2	B Haddad Maia	6	3	4

	First round							Qualifying competition
	1	Jodie Burrage	1	62
		Marina Melnikova	6	77
									Marina Melnikova	4	6	6
								8	Rebecca Šramková	6	2	4
		Ekaterina Makarova	3	2
	8	Rebecca Šramková	6	6

	First round							Qualifying competition
	2	Kayla Day	6	6
	WC	Madison Sieg	3	3
								2	Kayla Day	3	0
								12	Ann Li	6	6
	WC	Alyssa Ahn	5	5
	12	Ann Li	7	7

	First round							Qualifying competition
	3	Maria Timofeeva	2	0r
	WC	Marina Stakusic	6	3
								WC	Marina Stakusic	6	6
								11	Elsa Jacquemot	3	4
	WC	Haley Giavara	3	2
	11	Elsa Jacquemot	6	6

	First round							Qualifying competition
	4	Claire Liu	6	6
		Stacey Fung	3	4
								4	Claire Liu	4	2
								7	Jule Niemeier	6	6
		Natalija Stevanović	65	6	4
	7	Jule Niemeier	77	3	6

	First round							Qualifying competition
	5	Mai Hontama	6	6
		Despina Papamichail	3	4
								5	Mai Hontama	77	6
								9	Dalma Gálfi	64	4
		Lesley Pattinama Kerkhove	3	5
	9	Dalma Gálfi	6	7

	First round							Qualifying competition
	6	Linda Fruhvirtová	6	6
		Jana Kolodynska	2	0
								6	Linda Fruhvirtová	4	1
								10	Daria Saville	6	6
		Hanna Chang	2	2
	10	Daria Saville	6	6

• Main draw
• Qualifying draw