# 2018 Miami Open – Women's doubles

Ashleigh Barty and CoCo Vandeweghe defeated Barbora Krejčíková and Kateřina Siniaková in the final, 6–2, 6–1 to win the women's doubles tennis title at the 2018 Miami Open.
Gabriela Dabrowski and Xu Yifan were the defending champions, but lost in the first round to Elise Mertens and Demi Schuurs.

## Seeds

* Ekaterina Makarova / Elena Vesnina (semifinals)
* Chan Hao-ching / Latisha Chan (quarterfinals)
* Gabriela Dabrowski / Xu Yifan (first round)
* Tímea Babos / Kristina Mladenovic (first round)
* Andrea Sestini Hlaváčková / Barbora Strýcová (first round)
* Barbora Krejčíková / Kateřina Siniaková (final)
* Kiki Bertens / Johanna Larsson (first round)
* Andreja Klepač / María José Martínez Sánchez (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 |
| 1 | Ekaterina Makarova Elena Vesnina | 6 | 2 | [7] | | | | |
| | Ashleigh Barty CoCo Vandeweghe | 3 | 6 | [10] | | | | |
| | Ashleigh Barty CoCo Vandeweghe | 3 | 6 | [10] | | Ashleigh Barty CoCo Vandeweghe | 6 | 6 |
| | | | | | 6 | Barbora Krejčíková Kateřina Siniaková | 2 | 1 |
| | Elise Mertens Demi Schuurs | 6 | 3 | [9] | 6 | Barbora Krejčíková Kateřina Siniaková | 2 | 1 |
| 6 | Barbora Krejčíková Kateřina Siniaková | 4 | 6 | [11] | | | | |

### Top half

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 1 | E Makarova E Vesnina | 4 | 6 | [10] | | | | | | | | | | | | | |
| WC | E Bouchard S Stephens | 6 | 4 | [6] | 1 | E Makarova E Vesnina | 7 | 6 | | | | | | | | | |
| WC | J Konta H Watson | 6 | 4 | [10] | WC | J Konta H Watson | 5 | 4 | | | | | | | | | |
| | N Melichar K Peschke | 2 | 6 | [3] | | | | | 1 | E Makarova E Vesnina | 6 | 6 | | | | | |
| | L Kichenok A Kudryavtseva | 6 | 6 | | | | | | | L Kichenok A Kudryavtseva | 2 | 4 | | | | | |
| | K Flipkens N Stojanović | 4 | 4 | | | L Kichenok A Kudryavtseva | 6 | 7 | | | | | | | | | |
| | M Adamczak D Jurak | 2 | 4 | | 8 | A Klepač MJ Martínez Sánchez | 4 | 5 | | | | | | | | | |
| 8 | A Klepač MJ Martínez Sánchez | 6 | 6 | | | | | | | | | | 1 | E Makarova E Vesnina | 6 | 2 | [7] |
| 4 | T Babos K Mladenovic | 6 | 2 | [4] | | | | | | | | | | A Barty C Vandeweghe | 3 | 6 | [10] |
| | A Barty C Vandeweghe | 3 | 6 | [10] | | A Barty C Vandeweghe | 6 | 6 | | | | | | | | | |
| | V King K Srebotnik | 6 | 6 | | | V King K Srebotnik | 1 | 3 | | | | | | | | | |
| | R Olaru O Savchuk | 1 | 1 | | | | | | | A Barty C Vandeweghe | 7$^7$ | 6 | | | | | |
| | S Aoyama Z Yang | 6 | 6 | | | | | | | N Kichenok An Rodionova | 6$^5$ | 2 | | | | | |
| | A Smith R Voráčová | 1 | 1 | | | S Aoyama Z Yang | 2 | 3 | | | | | | | | | |
| | N Kichenok An Rodionova | 7$^7$ | 7 | | | N Kichenok An Rodionova | 6 | 6 | | | | | | | | | |
| 7 | K Bertens J Larsson | 6$^2$ | 5 | | | | | | | | | | | | | | |

### 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 | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 5 | A Sestini Hlaváčková B Strýcová | 6$^7$ | 6$^0$ | | | | | | | | | | | | | | | | |
| | R Atawo A-L Grönefeld | 7$^9$ | 7$^7$ | | | R Atawo A-L Grönefeld | 6$^3$ | 6 | [10] | | | | | | | | | | |
| | I-C Begu S Halep | 7$^7$ | 7$^8$ | | | I-C Begu S Halep | 7$^7$ | 2 | [8] | | | | | | | | | | |
| | J Görges B Mattek-Sands | 6$^3$ | 6$^6$ | | | | | | | | R Atawo A-L Grönefeld | 3 | 6$^5$ | | | | | | |
| WC | V Azarenka A Sabalenka | 6 | 2 | [4] | | | | | | | E Mertens D Schuurs | 6 | 7$^7$ | | | | | | |
| Alt | T Maria L Tsurenko | 3 | 6 | [10] | Alt | T Maria L Tsurenko | 4 | 2 | | | | | | | | | | | |
| | E Mertens D Schuurs | 7 | 7 | | | E Mertens D Schuurs | 6 | 6 | | | | | | | | | | | |
| 3 | G Dabrowski Y Xu | 5 | 5 | | | | | | | | | | | | | E Mertens D Schuurs | 6 | 3 | [9] |
| 6 | B Krejčíková K Siniaková | 6 | 6 | | | | | | | | | | | | 6 | B Krejčíková K Siniaková | 4 | 6 | [11] |
| | D Kasatkina A Pavlyuchenkova | 3 | 3 | | 6 | B Krejčíková K Siniaková | 7$^7$ | 3 | [10] | | | | | | | | | | |
| | A Rosolska A Spears | 6$^5$ | 6$^5$ | | | L Arruabarrena A Parra Santonja | 6$^5$ | 6 | [7] | | | | | | | | | | |
| | L Arruabarrena A Parra Santonja | 7$^7$ | 7$^7$ | | | | | | | 6 | B Krejčíková K Siniaková | 2 | 6 | [13] | | | | | |
| | S-w Hsieh M Niculescu | 5 | 2 | | | | | | | 2 | H-c Chan L Chan | 6 | 4 | [11] | | | | | |
| | K Bondarenko A Krunić | 7 | 6 | | | K Bondarenko A Krunić | 3 | 6 | [7] | | | | | | | | | | |
| | J Ostapenko A Sevastova | 1 | 4 | | 2 | H-c Chan L Chan | 6 | 1 | [10] | | | | | | | | | | |
| 2 | H-c Chan L Chan | 6 | 6 | | | | | | | | | | | | | | | | |