2023 San Diego Open – Singles

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. It was the first final in the tournament’s history to be contested by two wildcards.

Iga Świątek was the reigning champion, but chose not to compete this year.

Seeds
The top four seeds received a bye into the second round. • #🇹🇳 Ons Jabeur (second round)

• #🇫🇷 Caroline Garcia (quarterfinals)

• # Maria Sakkari (quarterfinals)

• #🇨🇿 Barbora Krejčíková (champion)

• # Belinda Bencic (first round)

• # Veronika Kudermetova (first round)

• #🇧🇷 Beatriz Haddad Maia (quarterfinals)

• # Ekaterina Alexandrova (first round)

Seeds
• # 🇨🇿 Kateřina Siniaková (first round)

• # 🇺🇸 Emma Navarro (qualified)

• # 🇨🇴 Camila Osorio (qualified)

• # 🇺🇸 Claire Liu (qualifying competition)

• # 🇵🇱 Magdalena Fręch (qualified)

• # Aliaksandra Sasnovich (qualified)

• # 🇺🇸 Kayla Day (qualifying competition)

• # 🇺🇸 Madison Brengle (first round)

• # 🇺🇸 Caroline Dolehide (first round)

• # 🇦🇺 Storm Hunter (first round)

• # Iryna Shymanovich (qualifying competition)

• # 🇺🇸 Hailey Baptiste (qualifying competition)

Qualifiers
• # 🇺🇸 Louisa Chirico

• # 🇺🇸 Emma Navarro

• # 🇨🇴 Camila Osorio

• # 🇺🇸 Clervie Ngounoue

• # 🇵🇱 Magdalena Fręch

• # Aliaksandra Sasnovich