# 2019 Silicon Valley Classic – Singles

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 received a bye into the second round.
* Elina Svitolina (quarterfinals)
* Aryna Sabalenka (final)
* Elise Mertens (second round)
* Amanda Anisimova (quarterfinals)
* Donna Vekić (semifinals)
* Carla Suárez Navarro (quarterfinals)
* Maria Sakkari (semifinals)
* Danielle Collins (second round)

## Draw
### Key

* Q = Qualifier
* WC = Wild card
* LL = Lucky loser
* Alt = Alternate
* SE = Special exempt
* PR = Protected ranking
* ITF = ITF entry
* JE = Junior exempt
* w/o = Walkover
* r = Retired
* d = Defaulted
* SR = Special ranking

### Finals

| Semifinals | Semifinals | Semifinals | Semifinals | Final | Final | Final | Final |
| 7 | Maria Sakkari | 6$^5$ | 2 | | | | |
| | Zheng Saisai | 7$^7$ | 6 | | | | |
| | Zheng Saisai | 7$^7$ | 6 | | Zheng Saisai | 6 | 7$^7$ |
| | | | | 2 | Aryna Sabalenka | 3 | 6$^3$ |
| 5 | Donna Vekić | 4 | 3 | 2 | Aryna Sabalenka | 3 | 6$^3$ |
| 2 | Aryna Sabalenka | 6 | 6 | | | | |

### Top half

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
| | | | | | 1 | E Svitolina | 6 | 6 | | | | | | | | | | |
| | M Buzărnescu | 2 | 2 | | WC | D Kasatkina | 3 | 1 | | | | | | | | | | |
| WC | D Kasatkina | 6 | 6 | | | | | | | 1 | E Svitolina | 6 | 6$^3$ | 3 | | | | |
| Q | T Babos | 2 | 6 | 6$^3$ | | | | | | 7 | M Sakkari | 1 | 7$^7$ | 6 | | | | |
| Q | M Hibi | 6 | 3 | 7$^7$ | Q | M Hibi | 6 | 4 | 2 | | | | | | | | | |
| | E Alexandrova | 1 | 4 | | 7 | M Sakkari | 4 | 6 | 6 | | | | | | | | | |
| 7 | M Sakkari | 6 | 6 | | | | | | | | | | | | 7 | M Sakkari | 6$^5$ | 2 |
| | | | | | | | | | | | | | | | | S Zheng | 7$^7$ | 6 |
| | | | | | 4 | A Anisimova | 6 | 6 | | | | | | | | | | |
| | M Brengle | 6 | 6 | | | M Brengle | 2 | 2 | | | | | | | | | | |
| | A Petkovic | 0 | 3 | | | | | | | 4 | A Anisimova | 7 | 5 | 4 | | | | |
| | H Watson | 3 | 1 | | | | | | | | S Zheng | 5 | 7 | 6 | | | | |
| | S Zheng | 6 | 6 | | | S Zheng | 6 | 6 | | | | | | | | | | |
| | S Zhang | 4 | 7 | 2 | 8 | D Collins | 2 | 0 | | | | | | | | | | |
| 8 | D Collins | 6 | 5 | 6 | | | | | | | | | | | | | | |

### Bottom half

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 5 | D Vekić | 6 | 3 | 6 | | | | | | | | | | | | | | |
| | M Doi | 4 | 6 | 4 | 5 | D Vekić | 6 | 6 | | | | | | | | | | |
| Q | H Tan | 2 | 4 | | | V Azarenka | 4 | 3 | | | | | | | | | | |
| | V Azarenka | 6 | 6 | | | | | | | 5 | D Vekić | 7 | 6 | | | | | |
| | A Tomljanović | 3 | 6 | 4 | | | | | | Q | K Ahn | 5 | 0 | | | | | |
| Q | K Ahn | 6 | 4 | 6 | Q | K Ahn | 6 | 6 | | | | | | | | | | |
| | | | | | 3 | E Mertens | 3 | 3 | | | | | | | | | | |
| | | | | | | | | | | | | | | | 5 | D Vekić | 4 | 3 |
| 6 | C Suárez Navarro | 6 | 6 | | | | | | | | | | | | 2 | A Sabalenka | 6 | 6 |
| | M Linette | 3 | 3 | | 6 | C Suárez Navarro | 3 | 6 | 6 | | | | | | | | | |
| WC | V Williams | 7$^7$ | 3 | 1 | WC | B Mattek-Sands | 6 | 1 | 2 | | | | | | | | | |
| WC | B Mattek-Sands | 6$^4$ | 6 | 6 | | | | | | 6 | C Suárez Navarro | 6 | 2 | 4 | | | | |
| | M Bouzková | 2 | 4 | | | | | | | 2 | A Sabalenka | 3 | 6 | 6 | | | | |
| WC | C Vandeweghe | 6 | 6 | | WC | C Vandeweghe | 3 | 3 | | | | | | | | | | |
| | | | | | 2 | A Sabalenka | 6 | 6 | | | | | | | | | | |

## Qualifying
### Seeds

* Tímea Babos (qualified)
* Wang Xiyu (qualifying competition)
* Priscilla Hon (qualifying competition)
* Danielle Lao (qualifying competition)
* Kristie Ahn (qualified)
* Liang En-shuo (qualifying competition, retired)
* Jovana Jakšić (first round)
* Harmony Tan (qualified)

### Qualifiers

* Tímea Babos
* Mayo Hibi
* Harmony Tan
* Kristie Ahn

### Qualifying draw
#### First qualifier

| First round | First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition |
| 1 | Tímea Babos | 7 | 2 | 7 | | | |
| WC | Katrina Scott | 5 | 6 | 5 | | | |
| WC | Katrina Scott | 5 | 6 | 5 | 1 | Tímea Babos | 5 |
| | | | | | 6 | Liang En-shuo | 2$^r$ |
| | Nadiia Kichenok | 1 | 6$^4$ | | 6 | Liang En-shuo | 2$^r$ |
| 6 | Liang En-shuo | 6 | 7$^7$ | | | | |

#### Second qualifier

| First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 2 | Wang Xiyu | 6 | 6 | | | | | |
| | Ashley Kratzer | 3 | 1 | | | | | |
| | Ashley Kratzer | 3 | 1 | 2 | Wang Xiyu | 6 | 6$^5$ | 2 |
| | | | | | Mayo Hibi | 3 | 7$^7$ | 6 |
| | Mayo Hibi | 6 | 6 | | Mayo Hibi | 3 | 7$^7$ | 6 |
| 7 | Jovana Jakšić | 1 | 0 | | | | | |

#### Third qualifier

| First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 3 | Priscilla Hon | 6 | 6 | | | | | |
| | Shuko Aoyama | 4 | 3 | | | | | |
| | Shuko Aoyama | 4 | 3 | 3 | Priscilla Hon | 7 | 3 | 1 |
| | | | | 8 | Harmony Tan | 5 | 6 | 6 |
| | Eri Hozumi | 2 | 3 | 8 | Harmony Tan | 5 | 6 | 6 |
| 8 | Harmony Tan | 6 | 6 | | | | | |

#### Fourth qualifier

| First round | First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 4 | Danielle Lao | 3 | 6 | 6 | | | | |
| | Mai Hontama | 6 | 4 | 3 | | | | |
| | Mai Hontama | 6 | 4 | 3 | 4 | Danielle Lao | 1 | 4 |
| | | | | | 5 | Kristie Ahn | 6 | 6 |
| WC | Katie Volynets | 5 | 0 | | 5 | Kristie Ahn | 6 | 6 |
| 5 | Kristie Ahn | 7 | 6 | | | | | |