Madison Keys Madison Keys (born February 17, 1995) is an American professional tennis player. She has been ranked as high as world No. 7 by the Women's Tennis Association The Women's Tennis Association (WTA) is the principal organizing body of women's ...

was the defending champion, but withdrew due to a wrist injury.

Mihaela Buzărnescu Mihaela Buzărnescu (born 4 May 1988) is a Romanian professional tennis player. She has a career-high WTA singles ranking of No. 20, achieved on 6 August 2018. Her best doubles ranking of world No. 24, she reached on 22 October 2018. She has ...

won her first

WTA Tour The WTA Tour is a worldwide top-tier tennis tour for women organized by the Women's Tennis Association. The second-tier tour is the WTA 125K series, and third-tier is the ITF Women's Circuit. The men's equivalent is the ATP Tour. WTA Tour tourna ...

singles title, defeating

Maria Sakkari Maria Sakkari ( gr, Μαρία Σάκκαρη, ; born 25 July 1995) is a Greek professional tennis player. She has been ranked as high as world No. 3 by the Women's Tennis Association (WTA), which she first achieved on 21 March 2022, making her ...

in the final, 6–1, 6–0.

Seeds

The top four

seeds A seed is an embryonic plant enclosed in a protective outer covering, along with a food reserve. The formation of the seed is a part of the process of reproduction in seed plants, the spermatophytes, including the gymnosperm and angiosperm pl ...

received a bye into the second round. Note:

Aryna Sabalenka Aryna Siarhiejeŭna Sabalenka ( be, Арына Сяргееўна Сабаленка; russian: Арина Сергеевна Соболенко, ''Arina Sergeyevna Sobolenko'', born 5 May 1998) is a Belarusian professional tennis player. She ha ...

, who would have been placed in the entry list on the initial entry cutoff date of June 18, 2018 and seeded 7th, entered late and played the qualifying tournament. But she was eliminated in qualifying matches.

Draw

Finals

Top half

Bottom half

Qualifying

Seeds

Qualifiers

Lucky losers

Qualifying draw

First qualifier

Second qualifier

Third qualifier

Fourth qualifier

External links

Main draw

Qualifying draw
{{DEFAULTSORT:Silicon Valley Classic - Singles 2018 US Open Series 2018 WTA Tour

2018 Singles Eighteen or 18 may refer to: * 18 (number), the natural number following 17 and preceding 19 * one of the years 18 BC, AD 18, 1918, 2018 Film, television and entertainment * ''18'' (film), a 1993 Taiwanese experimental film based on the shor ...