Question: who won the us women's open tennis championship
Answer: Created 1887 ; 130 years ago ( 1887 ) Editions 130 ( 2017 ) Open Era : 50 ( 2017 ) Surface Grass ( 1887 -- 1974 ) Clay ( 1975 -- 1977 ) Hard ( 1978 -- present ) Prize money Total : US $36,324,000 ( 2016 ) Winner : US $3,500,000 ( 2016 ) Trophy US Open Trophy Website Official website Most titles Amateur era 8 : Molla Bjurstedt Mallory Open era 6 : Chris Evert 6 : Serena Williams Most consecutive titles Amateur era 4 : Molla Bjurstedt Mallory 4 : Helen Jacobs Open era 4 : Chris Evert Current champion 2017 : Sloane Stephens