title: 2018 Oracle Challenger Series – Indian Wells – Women's singles
text: # 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 | | | | | |
  