The Hologic WTA Tour heads back to Southern California for the final WTA 500 event of the season at the San Diego Open.

Here's what you need to know about the tour's return to San Diego:

When does the tournament start?

The San Diego Open is a new WTA 500 tournament that begins on Monday, Oct. 10. This is the first time the WTA tour has held a tour-level event in San Diego since 2013. The tournament is played on outdoor hard court at the Barnes Tennis Center and will use the Dunlop Grand Prix Regular Duty ball. 

San Diego features a 28-player singles draw and 16-team doubles draw. Qualifying begins on Saturday, Oct.8.

When are the finals? 

The singles and doubles finals will be played on Sunday, Oct.17. The doubles final will begin at 1:30 p.m. and the singles final will be played not before 4:00 p.m.

Who is playing in San Diego?

The last WTA 500 event of the season features an incredible field, with six of the Top 10 entered. The lowest-ranked player with direct main draw entry at the entry deadline is No.20 Petra Kvitova. 

Sixteen of Top 20 entered in San Diego main draw

Projected Top 8 seeds:

1. Iga Swiatek
2. Paula Badosa
3. Aryna Sabalenka
4. Jessica Pegula
5. Coco Gauff
6. Carolina Garcia
7. Daria Kasatkina
8. Veronika Kudermetova

What does the draw look like?

The draw ceremony will take place on Friday, Oct.7 at 6:30 p.m.

What is the prize money and ranking points on offer?

First Round: 1 point/$8,080
Second Round: 55 points/ $11,185
Quarterfinals: 100 points/$20,505
Semifinal: 185 points/$42,010
Final: 305 points/$71,960
Champion: 470 points/$116,340

Key Storylines

Top-ranked Americans Pegula and Gauff return to action: World No.6 Jessica Pegula and No.8 Coco Gauff return to competition for the first time since their strong runs at the US Open. Pegula and Gauff are in strong position to secure their qualifying spots for the WTA Finals in Fort Worth, sitting at No.3 and No.4 on the Race Leaderboard, respectively. They're also at No.5 on the Doubles Race Leaderboard.

Race to the WTA Finals tightening up: With two weeks left in the regular season, only No.1 Iga Swiatek and No.2 Ons Jabeur have locked in qualification for the WTA Finals. Along with Pegula and Gauff, Caroline Garcia, Daria Kasatkina, Aryna Sabalenka, and Veronika Kudermetova will hold the remaining six qualifying positions going into San Diego.

Currently on the outside looking in with a chance to pick up points in San Diego are Paula Badosa (Race No.12), Madison Keys (Race No.13), Beatriz Haddad Maia (Race No.15), Danielle Collins (Race No.16), Petra Kvitova (Race No.17), Liudmila Samsonova (Race No.19), No.20 Ekaterina Alexandrova, and No.22 Elena Rybakina.

Swiatek's strong form continues: The US Open champion returned to action this week at the AGEL Open in Ostrava and is already into the semifinals, extending her win streak to nine matches. San Diego will be Swiatek's last regular season tournament before she finishes off her phenomenal season at the WTA Finals.

Loaded qualifying draw will be riveting: The 24-player qualifying tournament will be as strong as many WTA 250 tournaments, with Wimbledon champion Rybakina and Tokyo champion Samsonova gunning for one of the last four spots in the main draw. Also entered in qualifying: Zhang Shuai, Ajla Tomljanovic, Alizé Cornet, and Zheng Qinwen.

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