# 2019 Oracle Challenger Series – Newport Beach – Women's singles

Danielle Collins was the defending champion, but chose not to participate as she was still competing at the Australian Open.
Bianca Andreescu won her first WTA 125K series title, defeating Jessica Pegula in the final, 0–6, 6–4, 6–2.

## Seeds

All seeds received a bye into the second round.
* Rebecca Peterson (quarterfinals)
* Tatjana Maria (semifinals)
* Eugenie Bouchard (quarterfinals)
* Madison Brengle (second round)
* Taylor Townsend (quarterfinals)
* Bianca Andreescu (champion)
* Jessica Pegula (final)
* Sofya Zhuk (second round)
* Marie Bouzková (third round)
* Sachia Vickery (second round, retired)
* Yanina Wickmayer (second round)
* Nicole Gibbs (quarterfinals)
* Misaki Doi (second round)
* Claire Liu (third round)
* Varvara Lepchenko (second round)
* Jil Teichmann (third 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

| Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals | Final | Final | Final | Final | Final |
| 1 | Rebecca Peterson | 3 | 3 | | | | | | | | | | | |
| 7 | Jessica Pegula | 6 | 6 | | | | | | | | | | | |
| 7 | Jessica Pegula | 6 | 6 | | 7 | Jessica Pegula | 6 | 6 | | | | | | |
| | | | | | | Lauren Davis | 3 | 4 | | | | | | |
| | Lauren Davis | 6 | 3 | 7$^8$ | | Lauren Davis | 3 | 4 | | | | | | |
| 5 | Taylor Townsend | 3 | 6 | 6$^6$ | | | | | | | | | | |
| 5 | Taylor Townsend | 3 | 6 | 6$^6$ | | | | | | 7 | Jessica Pegula | 6 | 4 | 2 |
| | | | | | | | | | | 6 | Bianca Andreescu | 0 | 6 | 6 |
| 6 | Bianca Andreescu | 6 | 6 | | | | | | | | | | | | 6 | Bianca Andreescu | 0 | 6 | 6 |
| 3 | Eugenie Bouchard | 2 | 0 | | | | | | | | | | | |
| 3 | Eugenie Bouchard | 2 | 0 | | 6 | Bianca Andreescu | 5 | 7 | 7$^7$ | | | | | |
| | | | | | 2 | Tatjana Maria | 7 | 5 | 6$^3$ | | | | | |
| 12 | Nicole Gibbs | 1 | 3 | | 2 | Tatjana Maria | 7 | 5 | 6$^3$ | | | | | |
| 2 | Tatjana Maria | 6 | 6 | | | | | | | | | | | |

### Top half
#### Section 1

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals |
| | | | | | 1 | R Peterson | 6 | 6 | | | | | | | | |
| K Ahn | K Ahn | 6 | 6 | | | K Ahn | 4 | 4 | | | | | | | | |
| U Radwańska | U Radwańska | 4 | 2 | | | | | | 1 | R Peterson | 7$^7$ | 7$^7$ | | | | |
| Alt | A Danilina | 4 | 4 | | | | | | 14 | C Liu | 6$^0$ | 6$^2$ | | | | |
| | M Hibi | 6 | 6 | | | M Hibi | 2 | 1 | | | | | | | | |
| | | | | | 14 | C Liu | 6 | 6 | | | | | | | | |
| | | | | | | | | | | | | | 1 | R Peterson | 3 | 3 |
| | | | | | | | | | | | | | 7 | J Pegula | 6 | 6 |
| | | | | | 11 | Y Wickmayer | 2 | 2 | | | | | | | | |
| G Brodsky | G Brodsky | 7 | 2 | 1 | | A Kiick | 6 | 6 | | | | | | | | |
| A Kiick | A Kiick | 5 | 6 | 6 | | | | | | A Kiick | 5 | 3 | | | | |
| F Di Lorenzo | F Di Lorenzo | 6 | 6 | | | | | | 7 | J Pegula | 7 | 6 | | | | |
| Jia Lu | Jia Lu | 3 | 4 | | | F Di Lorenzo | 1 | 2 | | | | | | | | |
| | | | | | 7 | J Pegula | 6 | 6 | | | | | | | | |

#### Section 2

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals |
| | | | | | 4 | M Brengle | 6 | 4 | 2 | | | | | | | | | |
| R Marino | R Marino | 4 | 4 | | | R Zarazúa | 2 | 6 | 6 | | | | | | | | | |
| R Zarazúa | R Zarazúa | 6 | 6 | | | | | | | R Zarazúa | R Zarazúa | 2 | 6$^5$ | | | | | |
| S Karatantcheva | S Karatantcheva | 2 | 5 | | | | | | | L Davis | L Davis | 6 | 7$^7$ | | | | | |
| L Davis | L Davis | 6 | 7 | | | L Davis | 6 | 6 | | | | | | | | | | |
| | | | | | 15 | V Lepchenko | 1 | 4 | | | | | | | | | | |
| | | | | | | | | | | | | | | | L Davis | 6 | 3 | 7$^8$ |
| | | | | | | | | | | | | | | 5 | T Townsend | 3 | 6 | 6$^6$ |
| | | | | | 10 | S Vickery | 4 | 2$^r$ | | | | | | | | | | |
| H Tan | H Tan | 6 | 6 | | | H Tan | 6 | 4 | | | | | | | | | | |
| K Gerlach | K Gerlach | 4 | 2 | | | | | | | | H Tan | 3 | 1 | | | | | |
| | L Rüffer | 6 | 5 | 5 | | | | | | 5 | T Townsend | 6 | 6 | | | | | |
| WC | H Chang | 2 | 7 | 7 | WC | H Chang | 3 | 4 | | | | | | | | | | |
| | | | | | 5 | T Townsend | 6 | 6 | | | | | | | | | | |

### Bottom half
#### Section 3

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals |
| | | | | | 6 | B Andreescu | 6 | 7$^9$ | | | | | | | | | |
| | M Osaka | 0 | 0 | | Q | K Volynets | 2 | 6$^7$ | | | | | | | | | |
| Q | K Volynets | 6 | 6 | | | | | | | 6 | B Andreescu | 6 | 6 | | | | |
| J Loeb | J Loeb | 3 | 3 | | | | | | | 9 | M Bouzková | 1 | 2 | | | | |
| O Rogowska | O Rogowska | 6 | 6 | | | O Rogowska | 3 | 7$^7$ | 6$^6$ | | | | | | | | |
| | | | | | 9 | M Bouzková | 6 | 6$^5$ | 7$^8$ | | | | | | | | |
| | | | | | | | | | | | | | | 6 | B Andreescu | 6 | 6 |
| | | | | | | | | | | | | | | 3 | E Bouchard | 2 | 0 |
| | | | | | 16 | J Teichmann | 6 | 7$^7$ | | | | | | | | | |
| | J Jakšić | 6 | 5 | 6 | | J Jakšić | 3 | 6$^2$ | | | | | | | | | |
| WC | E Halbauer | 4 | 7 | 4 | | | | | | 16 | J Teichmann | 2 | 2 | | | | |
| D Lao | D Lao | 0 | 2 | | | | | | | 3 | E Bouchard | 6 | 6 | | | | |
| K Day | K Day | 6 | 6 | | | K Day | 6 | 3 | 2 | | | | | | | | |
| | | | | | 3 | E Bouchard | 2 | 6 | 6 | | | | | | | | |

#### Section 4

| First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals |
| | | | | 8 | S Zhuk | 2 | 3 | | | | | | | | | |
| | K Sebov | 6 | 6 | | K Sebov | 6 | 6 | | | | | | | | | |
| WC | H Giavara | 2 | 4 | | | | | | | K Sebov | 1 | 2 | | | | |
| Q | G Olmos | 6 | 6 | | | | | | 12 | N Gibbs | 6 | 6 | | | | |
| | V Savinykh | 1 | 1 | Q | G Olmos | 6$^2$ | 1 | | | | | | | | | |
| | | | | 12 | N Gibbs | 7$^7$ | 6 | | | | | | | | | |
| | | | | | | | | | | | | | 12 | N Gibbs | 1 | 3 |
| | | | | | | | | | | | | | 2 | T Maria | 6 | 6 |
| | | | | 13 | M Doi | 4 | 7 | 3 | | | | | | | | |
| C McHale | C McHale | 6 | 6 | | C McHale | 6 | 5 | 6 | | | | | | | | |
| R Anderson | R Anderson | 2 | 0 | | | | | | | C McHale | 2 | 3 | | | | |
| WC | M Manasse | 2 | 2 | | | | | | 2 | T Maria | 6 | 6 | | | | |
| | V Cepede Royg | 6 | 6 | | V Cepede Royg | 6$^0$ | 4 | | | | | | | | | |
| | | | | 2 | T Maria | 7$^7$ | 6 | | | | | | | | | |

## Qualifying
### Seeds

* Giuliana Olmos (qualified)
* Alexa Guarachi (qualifying competition)

### Qualifiers

* Giuliana Olmos
* Katie Volynets

### Qualifying draw
#### First qualifier

| Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 1 | Giuliana Olmos | 7 | 2 | 6 |
| WC | Carson Branstine | 5 | 6 | 3 |

#### Second qualifier

| Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 2 | Alexa Guarachi | 6 | 4 | 3 |
| WC | Katie Volynets | 4 | 6 | 6 |