# 2018 Oracle Challenger Series – Houston – Women's singles

This was the first edition of the tournament.
Peng Shuai won the title, defeating Lauren Davis in the final 1–6, 7–5, 6–4.

## Seeds

* Belinda Bencic (second round)
* Monica Niculescu (withdrew)
* Heather Watson (quarterfinals)
* Jessica Pegula (semifinals)
* Fanny Stollár (quarterfinals)
* Varvara Lepchenko (second round)
* Sofya Zhuk (semifinals)
* Marie Bouzková (first round)
* Nicole Gibbs (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 | Semifinals | Final | Final | Final | Final | Final |
| WC | Peng Shuai | 6 | 6 | | | | | | |
| 4 | Jessica Pegula | 4 | 3 | | | | | | |
| 4 | Jessica Pegula | 4 | 3 | | WC | Peng Shuai | 1 | 7 | 6 |
| | | | | | Q | Lauren Davis | 6 | 5 | 4 |
| 7 | Sofya Zhuk | 6 | 3 | 0 | Q | Lauren Davis | 6 | 5 | 4 |
| Q | Lauren Davis | 3 | 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 | Semifinals | Semifinals | Semifinals | Semifinals |
| 1/WC | B Bencic | 2 | 7$^8$ | 6 | | | | | | | | | | | | | |
| | A Kiick | 6 | 6$^6$ | 0 | 1/WC | B Bencic | 6 | 4 | 5 | | | | | | | | |
| | B Haddad Maia | 7$^7$ | 5 | 1 | WC | S Peng | 3 | 6 | 7 | | | | | | | | |
| WC | S Peng | 6$^5$ | 7 | 6 | | | | | | WC | S Peng | 6 | 7$^7$ | | | | |
| | N Broady | 4 | 3 | | | | | | | Q | W Osuigwe | 2 | 6$^3$ | | | | |
| Q | W Osuigwe | 6 | 6 | | Q | W Osuigwe | 2 | 6 | 6 | | | | | | | | |
| WC | M Haet | 4 | 6$^3$ | | 6 | V Lepchenko | 6 | 3 | 2 | | | | | | | | |
| 6 | V Lepchenko | 6 | 7$^7$ | | | | | | | | | | | WC | S Peng | 6 | 6 |
| 4 | J Pegula | 7$^{10}$ | 6 | | | | | | | | | | | 4 | J Pegula | 4 | 3 |
| | J Paolini | 6$^8$ | 2 | | 4 | J Pegula | 6 | 6 | | | | | | | | | |
| | D Khazaniuk | 7$^7$ | 6 | | | D Khazaniuk | 2 | 1 | | | | | | | | | |
| WC | B Turati | 6$^5$ | 2 | | | | | | | 4 | J Pegula | 6 | 6 | | | | |
| Q | E Halbauer | 2 | 4 | | | | | | | 5 | F Stollár | 3 | 3 | | | | |
| LL | J Cako | 6 | 6 | | LL | J Cako | 5 | 3 | | | | | | | | | |
| Q | A Li | 5 | 3 | | 5 | F Stollár | 7 | 6 | | | | | | | | | |
| 5 | F Stollár | 7 | 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 | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 7 | S Zhuk | 6 | 6 | | | | | | | | | | | | | | | |
| | G Min | 3 | 4 | | 7 | S Zhuk | 4 | | | | | | | | | | | |
| | D Chiesa | 5 | 1 | | Q | D Gálfi | 2$^r$ | | | | | | | | | | | |
| Q | D Gálfi | 7 | 6 | | | | | | | 7 | S Zhuk | 7 | 6 | | | | | |
| LL | RL Jani | 6 | 6 | | | | | | | 3 | H Watson | 5 | 4 | | | | | |
| LL | L Chirico | 2 | 3 | | LL | RL Jani | 4 | 1 | | | | | | | | | | |
| | J Loeb | 7 | 1 | 1 | 3 | H Watson | 6 | 6 | | | | | | | | | | |
| 3 | H Watson | 5 | 6 | 6 | | | | | | | | | | 7 | S Zhuk | 6 | 3 | 0 |
| 8 | M Bouzková | 4 | 6$^5$ | | | | | | | | | | | Q | L Davis | 3 | 6 | 6 |
| LL | K Sebov | 6 | 7$^7$ | | LL | K Sebov | 6 | 6 | | | | | | | | | | |
| | K Nara | 6 | 6 | | | K Nara | 3 | 3 | | | | | | | | | | |
| | V Flink | 2 | 3 | | | | | | | LL | K Sebov | 1 | 3 | | | | | |
| Q | L Davis | 6 | 6 | | | | | | | Q | L Davis | 6 | 6 | | | | | |
| Q | K Kučová | 4 | 3 | | Q | L Davis | 2 | 6 | 6 | | | | | | | | | |
| | A Muhammad | 6$^3$ | 6 | 1 | 9 | N Gibbs | 6 | 4 | 4 | | | | | | | | | |
| 9 | N Gibbs | 7$^7$ | 4 | 6 | | | | | | | | | | | | | | |

## Qualifying
### Seeds

* Katherine Sebov (qualifying competition, lucky loser)
* Whitney Osuigwe (qualified)
* Lauren Davis (qualified)
* Grace Min (moved into main draw)
* Kristína Kučová (qualified)
* Ulrikke Eikeri (first round)
* Dalma Gálfi (qualified)
* Maria Mateas (first round)
* Ann Li (qualified)
* Réka Luca Jani (qualifying competition, lucky loser)
* Elizabeth Halbauer (qualified)
* Maria Sanchez (withdrew, still competing in Las Vegas)

### Qualifiers

* Dalma Gálfi
* Whitney Osuigwe
* Lauren Davis
* Elizabeth Halbauer
* Kristína Kučová
* Ann Li

### Lucky losers

* Jacqueline Cako
* Katherine Sebov
* Réka Luca Jani
* Louisa Chirico

### Qualifying draw
#### First qualifier

| First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 1 | Katherine Sebov | 6 | 6 | | | | | |
| | Tori Kinard | 1 | 2 | | | | | |
| | Tori Kinard | 1 | 2 | 1 | Katherine Sebov | 4 | 7$^7$ | 2 |
| | | | | 7 | Dalma Gálfi | 6 | 6$^5$ | 6 |
| | Ingrid Neel | 5 | 1 | 7 | Dalma Gálfi | 6 | 6$^5$ | 6 |
| 7 | Dalma Gálfi | 7 | 6 | | | | | |

#### Second qualifier

| First round | First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 2 | Whitney Osuigwe | 6 | 6 | | | | | |
| Alt | Beatrice Gumulya | 1 | 1 | | | | | |
| Alt | Beatrice Gumulya | 1 | 1 | | 2 | Whitney Osuigwe | 6 | 6 |
| | | | | | 10 | Réka Luca Jani | 3 | 4 |
| | Alexa Guarachi | 6 | 0 | 0 | 10 | Réka Luca Jani | 3 | 4 |
| 10 | Réka Luca Jani | 4 | 6 | 6 | | | | |

#### Third qualifier

| First round | First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 3 | Lauren Davis | 6 | 5 | 6 | | | | |
| | Maegan Manasse | 2 | 7 | 0 | | | | |
| | Maegan Manasse | 2 | 7 | 0 | 3 | Lauren Davis | 6 | 6 |
| | | | | | | Jacqueline Cako | 3 | 4 |
| | Jacqueline Cako | 6 | 6 | | | Jacqueline Cako | 3 | 4 |
| Alt | Erin Routliffe | 1 | 3 | | | | | |

#### Fourth qualifier

| First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| WC | Victoria Smirnova | 6$^7$ | 5 | | | | | |
| WC | Julia Elbaba | 7$^9$ | 7 | | | | | |
| WC | Julia Elbaba | 7$^9$ | 7 | WC | Julia Elbaba | 7$^7$ | 3 | 4 |
| | | | | 11 | Elizabeth Halbauer | 6$^4$ | 6 | 6 |
| WC | Anna Bowtell | 3 | 5 | 11 | Elizabeth Halbauer | 6$^4$ | 6 | 6 |
| 11 | Elizabeth Halbauer | 6 | 7 | | | | | |

#### Fifth qualifier

| First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 5 | Kristína Kučová | 6 | 6 | | | | |
| | Olivia Tjandramulia | 4 | 2 | | | | |
| | Olivia Tjandramulia | 4 | 2 | 5 | Kristína Kučová | 7$^7$ | 6 |
| | | | | | Louisa Chirico | 6$^4$ | 4 |
| | Louisa Chirico | 7 | 6 | | Louisa Chirico | 6$^4$ | 4 |
| 8 | Maria Mateas | 5 | 3 | | | | |

#### Sixth qualifier

| First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 6 | Ulrikke Eikeri | 0 | 4 | | | | | |
| | Sanaz Marand | 6 | 6 | | | | | |
| | Sanaz Marand | 6 | 6 | | Sanaz Marand | 6 | 3 | 3 |
| | | | | 9 | Ann Li | 4 | 6 | 6 |
| | Ana Veselinović | 3 | 1 | 9 | Ann Li | 4 | 6 | 6 |
| 9 | Ann Li | 6 | 6 | | | | | |