2018 Mutua Madrid Open

{{TennisEventInfo|2018|Mutua Madrid Open|

| date= 5–13 May

| edition=17th

| draw=56S / 24D (men)
64S / 28D (women)

| surface=Clay

| prize_money= €6,200,860 (men)
€6,045,855 (women)

| location=Madrid, Spain

| venue=Park Manzanares

| champms={{flagicon|GER}} Alexander Zverev

| champws={{flagicon|CZE}} Petra Kvitová

| champmd={{flagicon|CRO}} Nikola Mektić / {{flagicon|AUT}} Alexander Peya

| champwd={{flagicon|RUS}} Ekaterina Makarova / {{flagicon|RUS}} Elena Vesnina

| main_name=Madrid Open (tennis){{!}}Madrid Open

}}

The 2018 Mutua Madrid Open was a professional tennis tournament played on outdoor clay courts at the Park Manzanares in Madrid, Spain from 5–13 May 2018. It was the 17th edition of the event on the ATP World Tour and 10th on the WTA Tour. It was classified as an ATP World Tour Masters 1000 event on the 2018 ATP World Tour and a Premier Mandatory event on the 2018 WTA Tour.{{cite web|url=http://www.madrid-open.com/en/ |title=Mutua Madrid Open | May 5th - 14th 2017 |publisher=Madrid-open.com |date=2017-03-27 |access-date=2017-04-21}}{{cite web|url=https://www.esmadrid.com/en/whats-on/mutua-madrid-open-madrid-caja-magica |title=Mutua Madrid Open Madrid Caja Mágica |publisher=Esmadrid.com |access-date=2017-04-21}}

Points and prize money

=Point distribution=

class=wikitable style=font-size:90%;text-align:center
style="width:130px; background:#dfe2e9;"\|Event \|style="width:80px; background:lime;"\|{{Tooltip\|W\|Win}} \|style="width:85px; background:thistle;"\|{{Tooltip\| F \| Final}} \|style="width:85px; background:#ff0;"\|{{Tooltip\| SF \| Semifinal}} \|style="width:85px; background:#ffebcd;"\|{{Tooltip\| QF \| Quarterfinal}} \|style="width:85px; background:#afeeee;"\|Round of 16 \|style="width:85px; background:#afeeee;"\|Round of 32 \|style="width:85px; background:#afeeee;"\|Round of 64 \|width=85\|{{Tooltip\| Q \| Qualifier}} \|width=85\|{{Tooltip\| Q2 \| Qualifying round 2}} \|width=85\|{{Tooltip\| Q1 \| Qualifying round 1}}
style="background:#ededed;"\|Men's singles \|rowspan=4\|1000 \|rowspan=2\|600 \|rowspan=2\|360 \|rowspan=2\|180 \|rowspan=2\|90 \|45 \|10 \|25 \|16 \|0
style="background:#ededed;"\|Men's doubles \|10 \|{{n/a}} \|{{n/a}} \|{{n/a}} \|{{n/a}}
style="background:#ededed;"\|Women's singles \|rowspan=2\|650 \|rowspan=2\|390 \|rowspan=2\|215 \|rowspan=2\|120 \|65 \|10 \|30 \|20 \|2
style="background:#ededed;"\|Women's doubles \|10 \|{{n/a}} \|{{n/a}} \|{{n/a}} \|{{n/a}}

class=wikitable style=font-size:90%;text-align:center

style="width:130px; background:#dfe2e9;"|Event

|style="width:80px; background:lime;"|{{Tooltip|W|Win}}

|style="width:85px; background:thistle;"|{{Tooltip| F | Final}}

|style="width:85px; background:#ff0;"|{{Tooltip| SF | Semifinal}}

|style="width:85px; background:#ffebcd;"|{{Tooltip| QF | Quarterfinal}}

|style="width:85px; background:#afeeee;"|Round of 16

|style="width:85px; background:#afeeee;"|Round of 32

|style="width:85px; background:#afeeee;"|Round of 64

|width=85|{{Tooltip| Q | Qualifier}}

|width=85|{{Tooltip| Q2 | Qualifying round 2}}

|width=85|{{Tooltip| Q1 | Qualifying round 1}}

style="background:#ededed;"|Men's singles

|rowspan=4|1000

|rowspan=2|600

|rowspan=2|360

|rowspan=2|180

|rowspan=2|90

|45

|10

|25

|16

style="background:#ededed;"|Men's doubles

|10

|{{n/a}}

style="background:#ededed;"|Women's singles

|rowspan=2|650

|rowspan=2|390

|rowspan=2|215

|rowspan=2|120

|65

|10

|30

|20

style="background:#ededed;"|Women's doubles

|10

|{{n/a}}

=Prize money=

class=wikitable style=font-size:90%;text-align:center \|width=130 bgcolor=dfe2e9\|Event \|width=80 bgcolor=lime\|W \|width=85 bgcolor=thistle\|F \|width=85 bgcolor=ffff00\|SF \|width=85 bgcolor=ffebcd\|QF \|width=85 bgcolor=afeeee\|Round of 16 \|width=85 bgcolor=afeeee\|Round of 32 \|width=85 bgcolor=afeeee\|Round of 64 \|width=85\|Q2 \|width=85\|Q1
style=background:#ededed\|Men's singles \|€1,190,490 \|€583,725 \|€293,780 \|€149,390 \|€77,575 \|€40,900 \|€22,080 \|€5,090 \|€2,595
style=background:#ededed\|Women's singles \|€1,190,490 \|€583,725 \|€293,780 \|€149,390 \|€77,575 \|€36,775 \|€17,275 \|€4,775 \|€2,325
style=background:#ededed\|Men's doubles \|€368,670 \|€180,490 \|€90,540 \|€46,470 \|€24,020 \|€12,670 \|{{n/a}} \|{{n/a}} \|{{n/a}}
style=background:#ededed\|Women's doubles \|€368,670 \|€180,490 \|€90,540 \|€46,470 \|€23,500 \|€12,100 \|{{n/a}} \|{{n/a}} \|{{n/a}}

class=wikitable style=font-size:90%;text-align:center

|width=130 bgcolor=dfe2e9|Event

|width=80 bgcolor=lime|W

|width=85 bgcolor=thistle|F

|width=85 bgcolor=ffff00|SF

|width=85 bgcolor=ffebcd|QF

|width=85 bgcolor=afeeee|Round of 16

|width=85 bgcolor=afeeee|Round of 32

|width=85 bgcolor=afeeee|Round of 64

|width=85|Q2

|width=85|Q1

style=background:#ededed|Men's singles

|€1,190,490

|€583,725

|€293,780

|€149,390

|€77,575

|€40,900

|€22,080

|€5,090

|€2,595

style=background:#ededed|Women's singles

|€1,190,490

|€583,725

|€293,780

|€149,390

|€77,575

|€36,775

|€17,275

|€4,775

|€2,325

style=background:#ededed|Men's doubles

|€368,670

|€180,490

|€90,540

|€46,470

|€24,020

|€12,670

|{{n/a}}

style=background:#ededed|Women's doubles

|€368,670

|€180,490

|€90,540

|€46,470

|€23,500

|€12,100

|{{n/a}}

ATP singles main-draw entrants

=Seeds=

The following are the seeded players. Seedings are based on ATP rankings as of 30 April 2018. Rankings and points before are as of 7 May 2018.

class="wikitable sortable"

! style="width:30px;" |Seed

! style="width:30px;" |Rank

! style="width:185px;" |Player

! style="width:75px;" |Points before

! style="width:75px;" |Points defending

! style="width:75px;" |Points won

! style="width:75px;" |Points after

! style="width:320px;" |Status

style="text-align:center;" | 1

| style="text-align:center;" | 1

| {{flagicon|ESP}} Rafael Nadal

| style="text-align:center;" | 8,770

| style="text-align:center;" | 1,000

| style="text-align:center;" | 180

| style="text-align:center;" | 7,950

| Quarterfinals lost to {{flagicon|AUT}} Dominic Thiem [5]

style="background:#cfc;"

| style="text-align:center;" | 2

| style="text-align:center;" | 3

| {{flagicon|GER}} Alexander Zverev

| style="text-align:center;" | 5,195

| style="text-align:center;" | 180

| style="text-align:center;" | 1000

| style="text-align:center;" | 6,015

| Champion, defeated {{flagicon|AUT}} Dominic Thiem [5]

style="text-align:center;" | 3

| style="text-align:center;" | 4

| {{flagicon|BUL}} Grigor Dimitrov

| style="text-align:center;" | 4,950

| style="text-align:center;" | 90

| style="text-align:center;" | 10

| style="text-align:center;" | 4,870

| Second round lost to {{flagicon|CAN}} Milos Raonic

style="text-align:center;" | 4

| style="text-align:center;" | 6

| {{flagicon|ARG}} Juan Martín del Potro

| style="text-align:center;" | 4,470

| style="text-align:center;" | (20)^‡

| style="text-align:center;" | 90

| style="text-align:center;" | 4,540

| Third round lost to {{flagicon|SRB}} Dušan Lajović [Q]

style="background:#fcc;"

| style="text-align:center;" | 5

| style="text-align:center;" | 7

| {{flagicon|AUT}} Dominic Thiem

| style="text-align:center;" | 3,545

| style="text-align:center;" | 600

| style="text-align:center;" | 3,545

| Runner-up, lost to {{flagicon|GER}} Alexander Zverev [2]

style="text-align:center;" | 6

| style="text-align:center;" | 8

| {{flagicon|RSA}} Kevin Anderson

| style="text-align:center;" | 3,345

| style="text-align:center;" | (45)^†

| style="text-align:center;" | 360

| style="text-align:center;" | 3,660

| Semifinals lost to {{flagicon|AUT}} Dominic Thiem [5]

style="text-align:center;" | 7

| style="text-align:center;" | 9

| {{flagicon|USA}} John Isner

| style="text-align:center;" | 3,125

| style="text-align:center;" | 0

| style="text-align:center;" | 180

| style="text-align:center;" | 3,305

| Quarterfinals lost to {{flagicon|GER}} Alexander Zverev [2]

style="text-align:center;" | 8

| style="text-align:center;" | 10

| {{flagicon|BEL}} David Goffin

| style="text-align:center;" | 3,020

| style="text-align:center;" | 180

| style="text-align:center;" | 90

| style="text-align:center;" | 2,930

| Third round lost to {{flagicon|GBR}} Kyle Edmund

style="text-align:center;" | 9

| style="text-align:center;" | 11

| {{flagicon|ESP}} Pablo Carreño Busta

| style="text-align:center;" | 2,280

| style="text-align:center;" | 10

| style="text-align:center;" | 2,280

| First round lost to {{flagicon|CRO}} Borna Ćorić

style="text-align:center;" | 10

| style="text-align:center;" | 12

| {{flagicon|SRB}} Novak Djokovic

| style="text-align:center;" | 2,220

| style="text-align:center;" | 360

| style="text-align:center;" | 45

| style="text-align:center;" | 1,905

| Second round lost to {{flagicon|GBR}} Kyle Edmund

style="text-align:center;" | 11

| style="text-align:center;" | 14

| {{flagicon|ESP}} Roberto Bautista Agut

| style="text-align:center;" | 2,175

| style="text-align:center;" | 10

| style="text-align:center;" | 45

| style="text-align:center;" | 2,210

| Second round lost to {{flagicon|GER}} Philipp Kohlschreiber

style="text-align:center;" | 12

| style="text-align:center;" | 15

| {{flagicon|USA}} Jack Sock

| style="text-align:center;" | 2,155

| style="text-align:center;" | 10

| style="text-align:center;" | 2,155

| First round lost to {{flagicon|URU}} Pablo Cuevas

style="text-align:center;" | 13

| style="text-align:center;" | 16

| {{flagicon|ARG}} Diego Schwartzman

| style="text-align:center;" | 2,085

| style="text-align:center;" | 45

| style="text-align:center;" | 90

| style="text-align:center;" | 2,130

| Third round lost to {{flagicon|ESP}} Rafael Nadal [1]

style="text-align:center;" | 14

| style="text-align:center;" | 17

| {{flagicon|CZE}} Tomáš Berdych

| style="text-align:center;" | 2,060

| style="text-align:center;" | 90

| style="text-align:center;" | 10

| style="text-align:center;" | 1,980

| First round lost to {{flagicon|FRA}} Richard Gasquet

style="text-align:center;" | 15

| style="text-align:center;" | 18

| {{flagicon|FRA}} Lucas Pouille

| style="text-align:center;" | 1,995

| style="text-align:center;" | 10

| style="text-align:center;" | 1,995

| First round lost to {{flagicon|FRA}} Benoît Paire

style="text-align:center;" | 16

| style="text-align:center;" | 19

| {{flagicon|ITA}} Fabio Fognini

| style="text-align:center;" | 1,840

| style="text-align:center;" | 45

| style="text-align:center;" | 10

| style="text-align:center;" | 1,805

| First round lost to {{flagicon|ARG}} Leonardo Mayer

† The player did not qualify for the tournament in 2017. Accordingly, points for his 18th best result are deducted instead.

‡ The player used an exemption to skip the tournament in 2017. Accordingly, points for his 18th best result are deducted instead.

=Withdrawals=

The following players would have been seeded, but they withdrew from the event.

class="wikitable sortable"

! style="width:30px;" |Rank

! style="width:185px;" |Player

! style="width:75px;" |Points before

! style="width:75px;" |Points defending

! style="width:75px;" |Points after

! style="width:200px;" |Reason

style="text-align:center;" | 2

| {{flagicon|SUI}} Roger Federer

| style="text-align:center;" | 9,670

| style="text-align:center;" | 0

| style="text-align:center;" | 8,670

| align="left"|Scheduling

style="text-align:center;" | 5

| {{flagicon|CRO}} Marin Čilić

| style="text-align:center;" | 4,780

| style="text-align:center;" | 10

| style="text-align:center;" | 4,770

| align="left"|Knee injury

style="text-align:center;" | 13

| {{flagicon|USA}} Sam Querrey

| style="text-align:center;" | 2,220

| style="text-align:center;" | 0

| style="text-align:center;" | 2,220

| align="left"|Scheduling

=Other entrants=

The following players received wildcards into the main draw:

{{flagicon|ESP}} Pablo Andújar
{{flagicon|ESP}} Roberto Carballés Baena
{{flagicon|ESP}} Guillermo García López
{{flagicon|GRE}} Stefanos Tsitsipas

The following players received entry from the qualifying draw:

{{flagicon|GEO}} Nikoloz Basilashvili
{{flagicon|ROU}} Marius Copil
{{flagicon|ARG}} Federico Delbonis
{{flagicon|RUS}} Evgeny Donskoy
{{flagicon|ARG}} Nicolás Kicker
{{flagicon|KAZ}} Mikhail Kukushkin
{{flagicon|SRB}} Dušan Lajović

=Withdrawals=

;Before the tournament

{{flagicon|CRO}} Marin Čilić → replaced by {{flagicon|FRA}} Julien Benneteau
{{flagicon|SUI}} Roger Federer → replaced by {{flagicon|CAN}} Denis Shapovalov
{{flagicon|ESP}} David Ferrer → replaced by {{flagicon|GER}} Jan-Lennard Struff
{{flagicon|SRB}} Filip Krajinović → replaced by {{flagicon|RUS}} Daniil Medvedev
{{flagicon|AUS}} Nick Kyrgios → replaced by {{flagicon|GER}} Mischa Zverev
{{flagicon|LUX}} Gilles Müller → replaced by {{flagicon|ITA}} Paolo Lorenzi
{{flagicon|GBR}} Andy Murray → replaced by {{flagicon|FRA}} Benoît Paire
{{flagicon|USA}} Sam Querrey → replaced by {{flagicon|USA}} Jared Donaldson
{{flagicon|RUS}} Andrey Rublev → replaced by {{flagicon|USA}} Tennys Sandgren
{{flagicon|FRA}} Jo-Wilfried Tsonga → replaced by {{flagicon|USA}} Ryan Harrison
{{flagicon|SUI}} Stan Wawrinka → replaced by {{flagicon|GER}} Peter Gojowczyk

ATP doubles main-draw entrants

=Seeds=

class="sortable wikitable"
width="70"\| Country ! width="175"\| Player ! width="70"\| Country ! width="175"\| Player ! Rank¹ ! Seed
{{flag\|POL}} \|Łukasz Kubot \|{{flag\|BRA}} \|Marcelo Melo \|3 \|1
style="background:#fcc;" \|{{flagu\|USA}} \|Bob Bryan \|{{flagu\|USA}} \|Mike Bryan \|10 \|2
{{flag\|FIN}} \|Henri Kontinen \|{{flag\|AUS}} \|John Peers \|15 \|3
{{flag\|FRA}} \|Pierre-Hugues Herbert \|{{flag\|FRA}} \|Nicolas Mahut \|26 \|4
{{flag\|GBR}} \|Jamie Murray \|{{flag\|BRA}} \|Bruno Soares \|27 \|5
{{flag\|COL}} \|Juan Sebastián Cabal \|{{flag\|COL}} \|Robert Farah \|36 \|6
{{flag\|CRO}} \|Ivan Dodig \|{{flagu\|USA}} \|Rajeev Ram \|37 \|7
{{flag\|IND}} \|Rohan Bopanna \|{{flag\|FRA}} \|Édouard Roger-Vasselin \|44 \|8

class="sortable wikitable"

width="70"| Country

! width="175"| Player

! width="70"| Country

! width="175"| Player

! Rank¹

! Seed

|Łukasz Kubot

|{{flag|BRA}}

|Marcelo Melo

style="background:#fcc;"

|{{flagu|USA}}

|{{flagu|USA}}

|10

|{{flag|AUS}}

|15

|Pierre-Hugues Herbert

|{{flag|FRA}}

|Nicolas Mahut

|26

|Jamie Murray

|{{flag|BRA}}

|Bruno Soares

|27

|Juan Sebastián Cabal

|{{flag|COL}}

|36

|{{flagu|USA}}

|37

|{{flag|FRA}}

|Édouard Roger-Vasselin

|44

Rankings are as of April 30, 2018.

=Other entrants=

The following pairs received wildcards into the doubles main draw:

{{flagicon|ESP}} David Marrero / {{flagicon|ESP}} Fernando Verdasco
{{flagicon|ROU}} Florin Mergea / {{flagicon|CAN}} Daniel Nestor

=Retirements=

{{flagicon|USA}} Bob Bryan (hip injury)

WTA singles main-draw entrants

=Seeds=

The following are the seeded players. Seedings are based on WTA rankings as of 30 April 2018. Rankings and points before are as of 7 May 2018.

class="wikitable sortable"

! style="width:30px;" |Seed

! style="width:30px;" |Rank

! style="width:185px;" |Player

! style="width:75px;" |Points before

! style="width:75px;" |Points defending

! style="width:75px;" |Points won

! style="width:75px;" |Points after

! style="width:320px;" |Status

style="text-align:center;" | 1

| style="text-align:center;" | 1

| {{flagicon|ROU}} Simona Halep

| style="text-align:center;" | 8,055

| style="text-align:center;" | 1,000

| style="text-align:center;" | 215

| style="text-align:center;" | 7,270

| Quarterfinals lost to {{flagicon|CZE}} Karolína Plíšková [6]

style="text-align:center;" | 2

| style="text-align:center;" | 2

| {{flagicon|DEN}} Caroline Wozniacki

| style="text-align:center;" | 6,790

| style="text-align:center;" | 65

| style="text-align:center;" | 120

| style="text-align:center;" | 6,845

| Third round lost to {{flagicon|NED}} Kiki Bertens

style="text-align:center;" | 3

| style="text-align:center;" | 3

| {{flagicon|ESP}} Garbiñe Muguruza

| style="text-align:center;" | 6,065

| style="text-align:center;" | 10

| style="text-align:center;" | 120

| style="text-align:center;" | 6,175

| Third round lost to {{flagicon|RUS}} Daria Kasatkina [14]

style="text-align:center;" | 4

| style="text-align:center;" | 4

| {{flagicon|UKR}} Elina Svitolina

| style="text-align:center;" | 5,450

| style="text-align:center;" | 10

| style="text-align:center;" | 65

| style="text-align:center;" | 5,505

| Second round lost to {{flagicon|ESP}} Carla Suárez Navarro

style="text-align:center;" | 5

| style="text-align:center;" | 5

| {{flagicon|LAT}} Jeļena Ostapenko

| style="text-align:center;" | 5,273

| style="text-align:center;" | (1)^†

| style="text-align:center;" | 10

| style="text-align:center;" | 5,282

| First round lost to {{flagicon|ROU}} Irina-Camelia Begu

style="text-align:center;" | 6

| style="text-align:center;" | 6

| {{flagicon|CZE}} Karolína Plíšková

| style="text-align:center;" | 5,100

| style="text-align:center;" | 65

| style="text-align:center;" | 390

| style="text-align:center;" | 5,425

| Semifinals lost to {{flagicon|CZE}} Petra Kvitová [10]

style="text-align:center;" | 7

| style="text-align:center;" | 7

| {{flagicon|FRA}} Caroline Garcia

| style="text-align:center;" | 4,700

| style="text-align:center;" | 10

| style="text-align:center;" | 390

| style="text-align:center;" | 5,080

| Semifinals lost to {{flagicon|NED}} Kiki Bertens

style="text-align:center;" | 8

| style="text-align:center;" | 8

| {{flagicon|USA}} Venus Williams

| style="text-align:center;" | 4,276

| style="text-align:center;" | 0

| style="text-align:center;" | 10

| style="text-align:center;" | 4,286

| First round lost to {{flagicon|EST}} Anett Kontaveit

style="text-align:center;" | 9

| style="text-align:center;" | 9

| {{flagicon|USA}} Sloane Stephens

| style="text-align:center;" | 3,939

| style="text-align:center;" | 0

| style="text-align:center;" | 120

| style="text-align:center;" | 4,059

| Third round lost to {{flagicon|CZE}} Karolína Plíšková [6]

style="background:#cfc;"

| style="text-align:center;" | 10

| {{flagicon|CZE}} Petra Kvitová

| style="text-align:center;" | 3,550

| style="text-align:center;" | 0

| style="text-align:center;" | 1000

| style="text-align:center;" | 4,550

| Champion, defeated {{flagicon|NED}} Kiki Bertens

style="text-align:center;" | 11

| style="text-align:center;" | 12

| {{flagicon|GER}} Julia Görges

| style="text-align:center;" | 2,980

| style="text-align:center;" | 10

| style="text-align:center;" | 120

| style="text-align:center;" | 3,090

| Third round lost to {{flagicon|FRA}} Caroline Garcia [7]

style="text-align:center;" | 12

| style="text-align:center;" | 13

| {{flagicon|USA}} CoCo Vandeweghe

| style="text-align:center;" | 2,738

| style="text-align:center;" | 215

| style="text-align:center;" | 10

| style="text-align:center;" | 2,533

| First round lost to {{flagicon|FRA}} Kristina Mladenovic

style="text-align:center;" | 13

| style="text-align:center;" | 14

| {{flagicon|USA}} Madison Keys

| style="text-align:center;" | 2,722

| style="text-align:center;" | 10

| style="text-align:center;" | 2,722

| First round lost to {{flagicon|ESP}} Sara Sorribes Tormo [WC]

style="text-align:center;" | 14

| style="text-align:center;" | 15

| {{flagicon|RUS}} Daria Kasatkina

| style="text-align:center;" | 2,570

| style="text-align:center;" | 10

| style="text-align:center;" | 215

| style="text-align:center;" | 2,775

| Quarterfinals lost to {{flagicon|CZE}} Petra Kvitová [10]

style="text-align:center;" | 15

| style="text-align:center;" | 17

| {{flagicon|LAT}} Anastasija Sevastova

| style="text-align:center;" | 2,505

| style="text-align:center;" | 390

| style="text-align:center;" | 65

| style="text-align:center;" | 2,180

| Second round lost to {{flagicon|NED}} Kiki Bertens

style="text-align:center;" | 16

| style="text-align:center;" | 19

| {{flagicon|SVK}} Magdaléna Rybáriková

| style="text-align:center;" | 2,295

| style="text-align:center;" | (80)^‡

| style="text-align:center;" | 10

| style="text-align:center;" | 2,225

| First round lost to {{flagicon|GBR}} Johanna Konta

† The player did not qualify for the tournament in 2017. Accordingly, points for her 16th best result are deducted instead.

‡ The player did not qualify for the tournament in 2017, but was defending points from an ITF Women's Circuit tournament.

=Other entrants=

The following players received wildcards into the main draw:

{{flagicon|ESP}} Lara Arruabarrena
{{flagicon|ESP}} Georgina García Pérez
{{flagicon|UKR}} Marta Kostyuk
{{flagicon|PUR}} Monica Puig
{{flagicon|ESP}} Sara Sorribes Tormo

The following player received entry using a protected ranking:

{{flagicon|BLR}} Victoria Azarenka

The following players received entry from the qualifying draw:

{{flagicon|USA}} Danielle Collins
{{flagicon|ITA}} Sara Errani
{{flagicon|USA}} Bernarda Pera
{{flagicon|CZE}} Kristýna Plíšková
{{flagicon|BLR}} Aryna Sabalenka
{{flagicon|SVK}} Anna Karolína Schmiedlová
{{flagicon|ESP}} Sílvia Soler Espinosa
{{flagicon|RUS}} Natalia Vikhlyantseva

=Withdrawals=

;Before the tournament

{{flagicon|SUI}} Timea Bacsinszky → replaced by {{flagicon|GRE}} Maria Sakkari
{{flagicon|USA}} Catherine Bellis → replaced by {{flagicon|CZE}} Kateřina Siniaková
{{flagicon|GER}} Angelique Kerber → replaced by {{flagicon|CRO}} Donna Vekić
{{flagicon|POL}} Agnieszka Radwańska → replaced by {{flagicon|SRB}} Aleksandra Krunić
{{flagicon|CZE}} Lucie Šafářová → replaced by {{flagicon|BEL}} Alison Van Uytvanck
{{flagicon|GER}} Laura Siegemund → replaced by {{flagicon|KAZ}} Zarina Diyas
{{flagicon|USA}} Serena Williams → replaced by {{flagicon|CHN}} Wang Qiang

WTA doubles main-draw entrants

=Seeds=

class="sortable wikitable"
width="70"\| Country ! width="175"\| Player ! width="70"\| Country ! width="175"\| Player ! Rank¹ ! Seed
style="background:#cfc;" \|{{flag\|RUS}} \|Ekaterina Makarova \|{{flag\|RUS}} \|Elena Vesnina \|4 \|1
{{flag\|CZE}} \|Andrea Sestini Hlaváčková \|{{flag\|CZE}} \|Barbora Strýcová \|17 \|2
style="background:#fcc;" \|{{flag\|HUN}} \|Tímea Babos \|{{flag\|FRA}} \|Kristina Mladenovic \|19 \|3
{{flag\|CAN}} \|Gabriela Dabrowski \|{{flag\|CHN}} \|Xu Yifan \|26 \|4
{{flag\|TPE}} \|Latisha Chan \|{{flagu\|USA}} \|Bethanie Mattek-Sands \|32 \|5
{{flag\|CZE}} \|Barbora Krejčiková \|{{flag\|CZE}} \|Kateřina Siniaková \|34 \|6
{{flag\|SLO}} \|Andreja Klepač \|{{flag\|ESP}} \|María José Martínez Sánchez \|36 \|7
{{flag\|TPE}} \|Chan Hao-ching \|{{flag\|CHN}} \|Yang Zhaoxuan \|39 \|8

class="sortable wikitable"

width="70"| Country

! width="175"| Player

! width="70"| Country

! width="175"| Player

! Rank¹

! Seed

style="background:#cfc;"

|{{flag|RUS}}

|Ekaterina Makarova

|{{flag|RUS}}

|Elena Vesnina

|Andrea Sestini Hlaváčková

|{{flag|CZE}}

|Barbora Strýcová

|17

style="background:#fcc;"

|{{flag|HUN}}

|{{flag|FRA}}

|19

|{{flag|CHN}}

|26

|{{flagu|USA}}

|Bethanie Mattek-Sands

|32

|Barbora Krejčiková

|{{flag|CZE}}

|Kateřina Siniaková

|34

|Andreja Klepač

|{{flag|ESP}}

|María José Martínez Sánchez

|36

|Chan Hao-ching

|{{flag|CHN}}

|Yang Zhaoxuan

|39

Rankings are as of April 30, 2018.

=Other entrants=

The following pairs received wildcards into the doubles main draw:

{{flagicon|ROU}} Sorana Cîrstea / {{flagicon|ESP}} Sara Sorribes Tormo
{{flagicon|ESP}} Anabel Medina Garrigues / {{flagicon|ESP}} Arantxa Parra Santonja

The following pairs received entry as alternates:

{{flagicon|USA}} Christina McHale / {{flagicon|CHN}} Peng Shuai
{{flagicon|RUS}} Anastasia Pavlyuchenkova / {{flagicon|UKR}} Olga Savchuk

=Withdrawals=

;Before the tournament

{{flagicon|UKR}} Kateryna Bondarenko (head injury)
{{flagicon|BEL}} Elise Mertens (gastrointestinal illness)
{{flagicon|LAT}} Jeļena Ostapenko (abdominal injury)

Champions

=Men's singles=

{{flagicon|GER}} Alexander Zverev def. {{flagicon|AUT}} Dominic Thiem, 6–4, 6–4

=Women's singles=

{{flagicon|CZE}} Petra Kvitová def. {{flagicon|NED}} Kiki Bertens, 7–6^(8–6), 4–6, 6–3

=Men's doubles=

{{flagicon|CRO}} Nikola Mektić / {{flagicon|AUT}} Alexander Peya def. {{flagicon|USA}} Bob Bryan / {{flagicon|USA}} Mike Bryan, 5–3, ret.

=Women's doubles=

{{flagicon|RUS}} Ekaterina Makarova / {{flagicon|RUS}} Elena Vesnina def. {{flagicon|HUN}} Tímea Babos / {{flagicon|FRA}} Kristina Mladenovic, 2–6, 6–4, [10–8]

References

External links

[http://www.madrid-open.com/en/ Official website]