2023 San Diego Open
| 2023 San Diego Open | |
|---|---|
| Date | 11–16 September |
| Edition | 37th (2nd as WTA 500 event) |
| Category | WTA 500 |
| Draw | 28S / 16D |
| Prize money | $780,637 |
| Surface | Hard |
| Location | San Diego, United States |
| Venue | Barnes Tennis Center |
| Champions | |
| Singles | |
 Barbora Krejčíková | |
| Doubles | |
| Barbora Krejčíková / Kateřina Siniaková | |
The 2023 San Diego Open (also known as the Cymbiotika San Diego Open presented by ResMed for sponsorship reasons) was a women's tennis tournament played on outdoor hard courts. It was the 2nd edition of the women's event, which is a WTA 500 event on the 2023 WTA Tour. It was held at the Barnes Tennis Center in San Diego, United States, from 11 to 16 September 2023.[1][2] The men's event was discontinued this year following the return of the ATP Tour to China.
Champions
Singles
|
Main article: 2023 San Diego Open – Singles |
- Barbora Krejčíková def.
Sofia Kenin 6–4, 2–6, 6–4
Doubles
|
Main article: 2023 San Diego Open – Doubles |
- Barbora Krejčíková / Kateřina Siniaková def. Danielle Collins / CoCo Vandeweghe 6–1, 6–4
Singles main-draw entrants
Seeds
| Country | Player | Rank1 | Seed |
|---|---|---|---|
 TUN
|
Ons Jabeur | 5 | 1 |
 FRA
|
Caroline Garcia | 7 | 2 |
 GRE
|
Maria Sakkari | 8 | 3 |
| CZE
|
Barbora Krejčíková | 12 | 4 |
 SUI
|
Belinda Bencic | 13 | 5 |
| Veronika Kudermetova | 16 | 6 | |
 BRA
|
Beatriz Haddad Maia | 19 | 7 |
| Ekaterina Alexandrova | 20 | 8 |
- 1 Rankings are as of 28 August 2023.[3]
Other entrants
The following players received wildcards into the main draw:
The following players received entry from the qualifying draw:
Withdrawals
Victoria Azarenka → replaced by Alycia Parks- Coco Gauff → replaced by Sloane Stephens
- Madison Keys → replaced by Danielle Collins
Donna Vekić → replaced by 
Jasmine Paolini
Doubles main-draw entrants
Seeds
| Country | Player | Country | Player | Rank1 | Seed |
|---|---|---|---|---|---|
| CZE
|
Barbora Krejčíková | CZE
|
Kateřina Siniaková | 3 | 1 |
 JPN
|
Shuko Aoyama |  CHN
|
Yang Zhaoxuan | 34 | 2 |
 TPE
|
Chan Hao-ching |  MEX
|
Giuliana Olmos | 39 | 3 |
 UKR
|
Lyudmyla Kichenok |  LAT
|
Jeļena Ostapenko | 50 | 4 |
- 1 Rankings are as of 28 August 2023.
Other entrants
The following pair received a wildcard into the doubles main draw:
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