This event was founded in 1971 as the
Southern California Open, its official name. That year there had been two previous women's tennis tournaments in San Diego: a Virginia Slims of San Diego (sponsored name) aka the Southern California Open event, and the Wells Fargo Open, which ran from 1979 to 1982. Giscafre's former doubles partner,
Jane Stratton, attained co-ownership of the tournament from 1986 until the event's cessation. The tournament has had various principal sponsors throughout its history, and has been played under the headings of the Great American Bank Classic, the
Mazda Classic and the
Toshiba Classic. The tournament was known for its strong player fields, location in the hills and atmosphere. Although the tournament achieved Tier-I status only in 2004, it became a draw to the heavyweights in women's tennis since its inception in the 1980s, being a crucial warm-up tournament leading to the
US Open. Past champions of the tournament include former world No.-1s
Steffi Graf,
Jennifer Capriati,
Lindsay Davenport,
Venus Williams,
Martina Hingis,
Justine Henin, and
Maria Sharapova. Six players won the tournament more than once, four of them consecutively. Graf holds the record for most wins (4); Venus Williams holds the record for most consecutive titles (3). The tournament's purse doubled to $200,000 in 1989, when the sponsor changed to San Diego–based
Great American Bank from
Virginia Slims, a cigarette brand owned by
Philip Morris. The tournament moved from the San Diego Tennis & Racquet Club to the
La Costa Resort and Spa in 1991, when the sponsor was changed to Mazda from Great American, which was in financial decline. On September 7, 2009, the Sony Ericsson WTA Tour announced the return of professional women's tennis to San Diego in 2010, under the sponsorship of Mercury Insurance. The Mercury Insurance Open was renamed the Southern California Open starting in 2013. In 2014, the event was relocated to Tokyo, Japan. In 2015, the tournament became the
Carlsbad Classic, hosted by the Park Hyatt Aviara Resort in Carlsbad, California, from November 23–29. As a WTA Challenger event, the Carlsbad Classic featured a 32-player singles main draw, an 8-player qualifying draw, and an 8-team doubles draw with $125,000 in prize money. It was the first WTA tournament held during Thanksgiving week. The tournament returned to the WTA Tour as a WTA 500 event in 2022 for three editions at the Barnes Tennis Center. It was cancelled in 2025 and replaced by the
Mérida Open on the WTA Tour. Starting in 2026, the tournament returned to the professional women's tennis tour, now as an ITF W100 event. :
Official name • Southern California Open (San Diego) (1971–2013). :
Sponsored names •
Virginia Slims of San Diego: 1971, 1985–1988 •
Wells Fargo Open: 1979–1982 •
Ginny of San Diego: 1984 •
Great American Bank Classic: 1989–1990 •
Mazda Classic: 1991–1993 •
Toshiba Classic; 1994–1998 •
TIG Classic: 1999 •
Acura Classic: 2000–2007 •
Mercury Insurance Open: 2010–2012 •
Southern California Open: 2013 •
Carlsbad Classic: 2015 •
Cymbiotika: 2023–2024 •
Better Buzz coffee roasters: 2026 ==Past finals==