2018 Oracle Challenger Series – Indian Wells – Women's singles
# 2018 Oracle Challenger Series – Indian Wells – Women's singles

This was the first edition of the tournament.

Sara Errani won the title, defeating Kateryna Bondarenko in the final 6–4, 6–2.

## Seeds

* Magda Linette (second round)
* Varvara Lepchenko (second round, retired)
* Hsieh Su-wei (second round)
* Kateryna Bondarenko (final)
* Jennifer Brady (first round)
* Francesca Schiavone (first round)
* Natalia Vikhlyantseva (first round)
* Duan Yingying (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 |
| - | - | - | - | - | - | - | - |
| Q | Sara Errani | 6 | 6 | | | | |
| Q | Amanda Anisimova | 4 | 2 | | | | |
| Q | Amanda Anisimova | 4 | 2 | Q | Sara Errani | 6 | 6 |
| | | | | 4 | Kateryna Bondarenko | 4 | 2 |
| 4 | Kateryna Bondarenko | 7 | 6 | 4 | Kateryna Bondarenko | 4 | 2 |
| | Ajla Tomljanović | 5 | 3 | | | | |

### 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 | Semifinals | Semifinals | Semifinals | Semifinals |
| - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| 1 | M Linette | 6 | 4 | 6 | | | | | | | | | | | | | |
| Q | V Duval | 3 | 6 | 2 | 1 | M Linette | 7 | $6^0$ | 4 | | | | | | | | |
| WC | V Zvonareva | 1 | 4 | | WC | D Collins | 5 | $7^7$ | 6 | | | | | | | | |
| WC | D Collins | 6 | 6 | | | | | | | WC | D Collins | 4 | 1 | | | | |
| | T Townsend | 5 | 1 | | | | | | | Q | S Errani | 6 | 6 | | | | |
| | K Ahn | 7 | 6 | | | K Ahn | 4 | 0 | | | | | | | | | |
| Q | S Errani | 6 | 6 | | Q | S Errani | 6 | 6 | | | | | | | | | |
| 5 | J Brady | 2 | 2 | | | | | | | | | | | Q | S Errani | 6 | 6 |
| 3 | S-w Hsieh | 6 | 7 | | | | | | | | | | | Q | A Anisimova | 4 | 2 |
| WC | A Kratzer | 4 | 5 | | 3 | S-w Hsieh | $6^5$ | $6^5$ | | | | | | | | | |
| | S Sorribes Tormo | 3 | 2 | | WC | C Dolehide | $7^7$ | $7^7$ | | | | | | | | | |
| WC | C Dolehide | 6 | 6 | | | | | | | WC | C Dolehide | 3 | 3 | | | | |
| Q | N Broady | 1 | 1 | | | | | | | Q | A Anisimova | 6 | 6 | | | | |
| Q | A Anisimova | 6 | 6 | | Q | A Anisimova | 6 | 6 | | | | | | | | | |
| | N Gibbs | 7 | 6 | | | N Gibbs | 4 | 0 | | | | | | | | | |
| 7 | N Vikhlyantseva | 5 | 2 | | | | | | | | | | | | | | |

### 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 | Semifinals | Semifinals | Semifinals | Semifinals |
| - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| 6 | F Schiavone | 1 | 3 | | | | | | | | | | | | | | |
| | Y Wickmayer | 6 | 6 | | | Y Wickmayer | 6 | 6 | | | | | | | | | |
| | S Vickery | 3 | 2 | | | S Kenin | 3 | 3 | | | | | | | | | |
| | S Kenin | 6 | 6 | | | | | | | | Y Wickmayer | 3 | 3 | | | | |
| | A Riske | 6 | 2 | 2 | | | | | | 4 | K Bondarenko | 6 | 6 | | | | |
| | R Hogenkamp | 4 | 6 | 6 | | R Hogenkamp | 3 | 0 | | | | | | | | | |
| | E Rodina | 6 | 3 | 4 | 4 | K Bondarenko | 6 | 6 | | | | | | | | | |
| 4 | K Bondarenko | 4 | 6 | 6 | | | | | | | | | | 4 | K Bondarenko | 7 | 6 |
| 8 | Y Duan | $7^7$ | 6 | | | | | | | | | | | | A Tomljanović | 5 | 3 |
| | K Nara | $6^5$ | 3 | | 8 | Y Duan | $6^4$ | 3 | | | | | | | | | |
| | V Golubic | 6 | 2 | 6 | | V Golubic | $7^7$ | 6 | | | | | | | | | |
| Q | Y Wang | 1 | 6 | 1 | | | | | | | V Golubic | 3 | 3 | | | | |
| | A Petkovic | 6 | 5 | 4 | | | | | | | A Tomljanović | 6 | 6 | | | | |
| | A Tomljanović | 4 | 7 | 6 | | A Tomljanović | 4 | 6 | 0 | | | | | | | | |
| Q | M Doi | $6^5$ | 7 | $6^2$ | 2 | V Lepchenko | 6 | 1 | $0^r$ | | | | | | | | |
| 2 | V Lepchenko | $7^7$ | 5 | $7^7$ | | | | | | | | | | | | | |

## Qualifying

### Seeds

* Wang Yafan (qualified)
* Naomi Broady (qualified)
* Vera Lapko (qualifying competition)
* Barbora Krejčíková (first round)
* Risa Ozaki (first round)
* Jang Su-jeong (qualifying competition)
* Sara Errani (qualified)
* Misaki Doi (qualified)
* Amanda Anisimova (qualified)
* Julia Boserup (qualifying competition)
* Victoria Duval (qualified)
* Louisa Chirico (qualifying competition)

### Qualifiers

* Wang Yafan
* Naomi Broady
* Misaki Doi
* Sara Errani
* Victoria Duval
* Amanda Anisimova

### Qualifying draw

**First qualifier**

| First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| - | - | - | - | - | - | - | - |
| 1 | Wang Yafan | 6 | 6 | | | | |
| | Sophie Chang | 3 | 3 | | | | |
| | Sophie Chang | 3 | 3 | 1 | Wang Yafan | 6 | 7 |
| | | | | 12 | Louisa Chirico | 3 | 5 |
| | Tori Kinard | $0^r$ | | 12 | Louisa Chirico | 3 | 5 |
| 12 | Louisa Chirico | 4 | | | | | |

**Second qualifier**

| First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| - | - | - | - | - | - | - | - | - |
| 2 | Naomi Broady | 6 | 6 | | | | | |
| WC | Lauren Marker | 3 | 3 | | | | | |
| WC | Lauren Marker | 3 | 3 | 2 | Naomi Broady | 6 | 5 | 6 |
| | | | | 10 | Julia Boserup | 3 | 7 | 3 |
| WC | Ingrid Neel | 1 | 3 | 10 | Julia Boserup | 3 | 7 | 3 |
| 10 | Julia Boserup | 6 | 6 | | | | | |

**Third qualifier**

| First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| - | - | - | - | - | - | - | - |
| 3 | Vera Lapko | 6 | 6 | | | | |
| | Allie Kiick | 1 | 0 | | | | |
| | Allie Kiick | 1 | 0 | 3 | Vera Lapko | $6^1$ | 3 |
| | | | | 8 | Misaki Doi | $7^7$ | 6 |
| | Chiara Scholl | 1 | 0 | 8 | Misaki Doi | $7^7$ | 6 |
| 8 | Misaki Doi | 6 | 6 | | | | |

**Fourth qualifier**

| First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| - | - | - | - | - | - | - | - | - |
| 4 | Barbora Krejčíková | 4 | 3 | | | | | |
| | Claire Liu | 6 | 6 | | | | | |
| | Claire Liu | 6 | 6 | | Claire Liu | 3 | 6 | 3 |
| | | | | 7 | Sara Errani | 6 | 3 | 6 |
| | Danielle Lao | 4 | 2 | 7 | Sara Errani | 6 | 3 | 6 |
| 7 | Sara Errani | 6 | 6 | | | | | |

**Fifth qualifier**

| First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| - | - | - | - | - | - | - | - |
| 5 | Risa Ozaki | 4 | 2 | | | | |
| | Francesca Di Lorenzo | 6 | 6 | | | | |
| | Francesca Di Lorenzo | 6 | 6 | | Francesca Di Lorenzo | 3 | 2 |
| | | | | 11 | Victoria Duval | 6 | 6 |
| WC | Pamela Montez | 3 | 5 | 11 | Victoria Duval | 6 | 6 |
| 11 | Victoria Duval | 6 | 7 | | | | |

**Sixth qualifier**

| First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| - | - | - | - | - | - | - | - | - |
| 6 | Jang Su-jeong | 6 | 6 | | | | | |
| | Julia Elbaba | 0 | 3 | | | | | |
| | Julia Elbaba | 0 | 3 | 6 | Jang Su-jeong | 3 | 6 | 0 |
| | | | | 9 | Amanda Anisimova | 6 | 3 | 6 |
| | Valeriya Strakhova | 0 | 1 | 9 | Amanda Anisimova | 6 | 3 | 6 |
| 9 | Amanda Anisimova | 6 | 6 | | | | | |
