Mihaela Buzărnescu was the defending champion, but lost to Daria Kasatkina in the first round. Zheng Saisai won her first WTA singles title, defeating Aryna Sabalenka in the final, 6–3, 7–6^(7–3).

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.

Draw

Finals

Top half

Bottom half

Qualifying

Seeds

Qualifiers

Qualifying draw

First qualifier

Second qualifier

Third qualifier

Fourth qualifier

External links

Main draw

Qualifying draw
{{DEFAULTSORT:Silicon Valley Classic - Singles 2019 US Open Series 2019 WTA Tour

2019 Singles Nineteen or 19 may refer to: * 19 (number), the natural number following 18 and preceding 20 * one of the years 19 BC, AD 19, 1919, 2019 Films * ''19'' (film), a 2001 Japanese film * ''Nineteen'' (film), a 1987 science fiction film Musi ...