| Year | Winner | sets | Finalist | sets scores | | Tier II. Played at Henry J Kaiser Arena in Oakland | | 1996 Women Oakland USA | Martina Hingis | Switzerland | | 2-0 | Monica Seles | United States | | 6-2, 6-0 | | played at Oakland-Alameda County Coliseum Arena | | 1995 Women Oakland USA | Magdalena Maleeva | Bulgaria | | 2-0 | Ai Sugiyama | Japan | | 6-3, 6-4 | | 1994 Women Oakland USA | Arantxa Sánchez Vicario | Spain | | 2-1 | Martina Navratilova | United States | | 1-6, 7-67-5, 7-65 | | 1993 Women Oakland USA | Martina Navratilova (5) | United States | | 2-0 | Zina Garrison | United States | | 6-2, 7-61 | | 1992 Women Oakland USA | Monica Seles (2) | Yugoslavia | | 2-0 | Martina Navratilova | United States | | 6-3, 6-4 | | 1991 Women Oakland USA | Martina Navratilova (4) | United States | | 2-1 | Monica Seles | Yugoslavia | | 6-3, 3-6, 6-3 | | 1990 Women Oakland USA | Monica Seles | Yugoslavia | | 2-0 | Martina Navratilova | United States | | 6-3, 7-65 | | ---------------- | | 1989 Women Oakland USA | Zina Garrison (2) | United States | | 2-0 | Larisa Savchenko | Soviet Union | | 6-1, 6-1 | | 1988 Women Oakland USA | Martina Navratilova (3) | United States | | 2-0 | Larisa Savchenko | Soviet Union | | 6-1, 6-2 | | 1987 Women Oakland USA | Zina Garrison | United States | | 2-1 | Sylvia Hanika | West Germany | | 7-5, 4-6, 6-3 | | 1986 Women Oakland USA | Chris Evert (3) | United States | | 2-0 | Kathy Jordan | United States | | 6-2, 6-4 | | 1985 Women Oakland USA | Hana Mandlíková (2) | Czechoslovakia | | 2-0 | Chris Evert | United States | | 6-2, 6-4 | | 1984 Women Oakland USA | Hana Mandlíková | Czechoslovakia | | 2-1 | Martina Navratilova | United States | | 7-66, 3-6, 6-4 | | 1983 Women Oakland USA | Bettina Bunge | West Germany | | 2-0 | Sylvia Hanika | West Germany | | 6-3, 6-3 | | 1982 Women Oakland USA | Andrea Jaeger (2) | United States | | 2-1 | Chris Evert | United States | | 7-65, 6-4 | | 1981 Women Oakland USA | Andrea Jaeger | United States | | 2-0 | Virginia Wade | Great Britain | | 6-3, 6-1 | | 1980 Women Oakland USA | Martina Navratilova (2) | United States | | 2-0 | Evonne Goolagong Cawley | Australia | | 6-1, 7-64 | | 1979 Women Oakland USA | Martina Navratilova | United States | | 2-0 | Chris Evert | United States | | 7-5, 7-5 | | 1978 | not held | | played at San Francisco Civic Auditorium | | 1977___ | Sue Barker | Great Britain | | 2-0 | Virginia Wade | Great Britain | | 6-3, 6-4 | | 1976___ | Chris Evert (2) | United States | | 2-0 | Evonne Goolagong Cawley | Australia | | 7-5, 7-65-2 | | 1975___ | Chris Evert | United States | | 2-0 | Billie Jean King | United States | | 6-1, 6-1 | | 1974___ | Billie Jean King (3) | United States | | 2-0 | Chris Evert | United States | | 7-65-2, 6-2 | | 1973___ | Margaret Court | Australia | | 2-0 | Kerry Melville | Australia | | 6-3, 6-3 | | 1972___ | Billie Jean King (2) | United States | | 2-1 | Kerry Melville | Australia | | 7-65-0, 7-65-2 | | 1971___ | Billie Jean King | United States | | 2-0 | Rosemary Casals | United States | | 6-3, 6-4 |
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