# 2018 Odlum Brown Vancouver Open – Women's singles

Maryna Zanevska was the defending champion, but lost to Nao Hibino in the second round.
Misaki Doi won the title after defeating Heather Watson 6–7$^{(4–7)}$, 6–1, 6–4 in the final.

## Seeds

* Kateryna Kozlova (second round)
* Yanina Wickmayer (second round)
* Ekaterina Alexandrova (first round)
* Ons Jabeur (first round, retired)
* Katie Boulter (quarterfinals)
* Mona Barthel (withdrew)
* Arantxa Rus (second round)
* Beatriz Haddad Maia (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 | Final |
| | Nao Hibino | 2 | 2 | | | | | |
| | Heather Watson | 6 | 6 | | | | | |
| | Heather Watson | 6 | 6 | | Heather Watson | 7$^7$ | 1 | 4 |
| | | | | Q | Misaki Doi | 6$^4$ | 6 | 6 |
| Q | Misaki Doi | 6 | 7 | Q | Misaki Doi | 6$^4$ | 6 | 6 |
| Q | Martina Trevisan | 4 | 5 | | | | | |

### 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 |
| 1 | K Kozlova | 6 | 6 | | | | | | | | | | | | | | |
| | F Ferro | 3 | 3 | | 1 | K Kozlova | 4 | 7 | 1 | | | | | | | | |
| | V Cepede Royg | 2 | 2 | | | E Bouchard | 6 | 5 | 6 | | | | | | | | |
| | E Bouchard | 6 | 6 | | | | | | | | E Bouchard | 6 | 1 | 3 | | | |
| WC | G Dabrowski | 3 | 3 | | | | | | | | N Hibino | 3 | 6 | 6 | | | |
| | N Hibino | 6 | 6 | | | N Hibino | 6 | 1 | 6 | | | | | | | | |
| | D Kovinić | 3 | 6$^3$ | | LL | M Zanevska | 2 | 6 | 3 | | | | | | | | |
| LL | M Zanevska | 6 | 7$^7$ | | | | | | | | | | | | N Hibino | 2 | 2 |
| 3 | E Alexandrova | 2 | 2 | | | | | | | | | | | | H Watson | 6 | 6 |
| | H Watson | 6 | 6 | | | H Watson | 4 | 6 | 6 | | | | | | | | |
| | M Kostyuk | 4 | 7 | 0 | | Y Bonaventure | 6 | 4 | 4 | | | | | | | | |
| | Y Bonaventure | 6 | 5 | 6 | | | | | | | H Watson | 6 | 3 | 6 | | | |
| | M Brengle | 3 | 4 | | | | | | | 5 | K Boulter | 3 | 6 | 1 | | | |
| | A Kalinskaya | 6 | 6 | | | A Kalinskaya | 5 | 2 | | | | | | | | | |
| WC | F Abanda | 6 | 3 | 2 | 5 | K Boulter | 7 | 6 | | | | | | | | | |
| 5 | K Boulter | 1 | 6 | 6 | | | | | | | | | | | | | |

### Bottom half

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 8 | B Haddad Maia | 6 | 6 | | | | | | | | | | | | | | |
| | C Zhao | 3 | 1 | | 8 | B Haddad Maia | 5 | 6$^7$ | | | | | | | | | |
| | A Dulgheru | 6 | 6 | | | A Dulgheru | 7 | 7$^9$ | | | | | | | | | |
| | F Stollár | 2 | 1 | | | | | | | A Dulgheru | 4 | 0 | | | | | |
| Q | M Doi | 3 | 6 | 6 | | | | | Q | M Doi | 6 | 6 | | | | | |
| WC | K Sebov | 6 | 3 | 2 | Q | M Doi | 6 | 6 | | | | | | | | | |
| | I Khromacheva | 6 | 0 | | | I Khromacheva | 0 | 0 | | | | | | | | | |
| 4 | O Jabeur | 3 | 0$^r$ | | | | | | | | | | | Q | M Doi | 6 | 7 |
| 7 | A Rus | 4 | 6 | 6 | | | | | | | | | | Q | M Trevisan | 4 | 5 |
| Q | G Olmos | 6 | 4 | 3 | 7 | A Rus | 2 | 2 | | | | | | | | | |
| | M Fręch | 2 | 7$^8$ | 0 | Q | M Trevisan | 6 | 6 | | | | | | | | | |
| Q | M Trevisan | 6 | 6$^6$ | 6 | | | | | Q | M Trevisan | 2 | 6 | 7$^7$ | | | | |
| WC | R Marino | 4 | 6 | 7 | | | | | WC | R Marino | 6 | 2 | 6$^3$ | | | | |
| | N Broady | 6 | 1 | 5 | WC | R Marino | 7 | 7 | | | | | | | | | |
| Q | J Glushko | 4 | 6$^2$ | | 2 | Y Wickmayer | 5 | 5 | | | | | | | | | |
| 2 | Y Wickmayer | 6 | 7$^7$ | | | | | | | | | | | | | | |