2023 San Diego Open – Singles

Singles
2023 San Diego Open
Champion	Barbora Krejčíková
Runner-up	Sofia Kenin
Score	6–4, 2–6, 6–4
Draw	28 (4WC, 6Q)
Seeds	8

Barbora Krejčíková defeated Sofia Kenin in the final, 6–4, 2–6, 6–4 to win the singles title at the 2023 San Diego Open.^[1] It was the first final in the tournament’s history to be contested by two wildcards.

Iga Świątek was the reigning champion,^[2] but chose not to compete this year.

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

	Semifinals							Final
	WC	Sofia Kenin	6	5	6
	Q	Emma Navarro	2	7	4
								WC	Sofia Kenin	4	6	4
								4/WC	Barbora Krejčíková	6	2	6
	4/WC	Barbora Krejčíková	3	7	6
		Danielle Collins	6	5	2

	First round							Second round							Quarterfinals							Semifinals
								1	O Jabeur	4	64
		A Parks	2	7	4				A Potapova	6	77
		A Potapova	6	5	6											A Potapova	2	3
	WC	K Volynets	2	6	6										WC	S Kenin	6	6
	Q	C Ngounoue	6	4	2			WC	K Volynets	6	4	2
	WC	S Kenin	6	6				WC	S Kenin	1	6	6
	6	V Kudermetova	4	4																		WC	S Kenin	6	5	6
																						Q	E Navarro	2	7	4
								3	M Sakkari	6	2
	Q	M Fręch	3	6	4			Q	C Osorio	3	2r
	Q	C Osorio	6	1	6										3	M Sakkari	4	6	64
		J Paolini	5	0											Q	E Navarro	6	0	77
	Q	E Navarro	7	6				Q	E Navarro	7	6
	Q	A Sasnovich	6	3	6			Q	A Sasnovich	5	4
	5	B Bencic	3	6	2

	First round							Second round							Quarterfinals							Semifinals
	7	B Haddad Maia	6	5	6
	WC	L Fernandez	3	7	2			7	B Haddad Maia	7	63	6
		M Linette	2	65					M Kostyuk	5	77	2
		M Kostyuk	6	77											7	B Haddad Maia	4	3
		A Kalinina	77	0	6										4/WC	B Krejčíková	6	6
		Ka Plíšková	64	6	3				A Kalinina	3	2
								4/WC	B Krejčíková	6	6
																						4/WC	B Krejčíková	3	7	6
	8	E Alexandrova	63	78	5																		D Collins	6	5	2
		J Ostapenko	77	66	7				J Ostapenko	6	3	4
	Q	L Chirico	5	0					D Collins	2	6	6
		D Collins	7	6												D Collins	6	6
		S Stephens	6	6											2	C Garcia	2	3
		E Mertens	1	3					S Stephens	3	6	1
								2	C Garcia	6	3	6

	First round							Qualifying competition
	1	Kateřina Siniaková	2	6	4
		Renata Zarazúa	6	4	6
									Renata Zarazúa	3	6	4
									Louisa Chirico	6	3	6
		Louisa Chirico	77	6
	9	Caroline Dolehide	64	2

	First round							Qualifying competition
	2	Emma Navarro	6	6
	WC	Yasmine Kabbaj	1	2
								2	Emma Navarro	6	6
								11	Iryna Shymanovich	3	1
		Katrina Scott	3	3
	11	Iryna Shymanovich	6	6

	First round							Qualifying competition
	3	Camila Osorio	6	6
		Jamie Loeb	1	2
								3	Camila Osorio	5	6	6
								7	Kayla Day	7	4	3
		María Herazo González	1	3
	7	Kayla Day	6	6

	First round							Qualifying competition
	4	Claire Liu	4	6	6
	WC	Alyssa Ahn	6	1	2
								4	Claire Liu	4	2
								WC	Clervie Ngounoue	6	6
	WC	Clervie Ngounoue	77	6
	10	Storm Hunter	63	4

	First round							Qualifying competition
	5	Magdalena Fręch	6	6
		Yulia Starodubtseva	1	3
								5	Magdalena Fręch	6	64	6
								12	Hailey Baptiste	4	77	4
		Victoria Hu	4	0
	12	Hailey Baptiste	6	6

	First round							Qualifying competition
	6	Aliaksandra Sasnovich	6	6
	WC	Eryn Cayetano	1	4
								6	Aliaksandra Sasnovich	6	6
									Varvara Lepchenko	3	2
		Varvara Lepchenko	2	6	7
	8	Madison Brengle	6	4	5

• Main draw
• Qualifying draw