2018 Western & Southern Open

{{further|topic=singles results at|2018 Western & Southern Open – Men's singles|l1=Men's singles draw|2018 Western & Southern Open – Women's singles|l2=Women's singles draw}}

{{Infobox tennis event|2018|Western & Southern Open|

| date = August 13–19

| edition = 117th (men) / 90th (women)

| surface = Hard

| location = Mason, Ohio, United States

| venue=Lindner Family Tennis Center

| category = {{nowrap|ATP World Tour Masters 1000 (men)}}
WTA Premier 5 (women)

| champms = {{flagicon|SRB}} Novak Djokovic

| champws = {{flagicon|NED}} Kiki Bertens

| champmd = {{flagicon|GBR}} Jamie Murray / {{flagicon|BRA}} Bruno Soares

| champwd = {{flagicon|CZE}} Lucie Hradecká / {{flagicon|RUS}} Ekaterina Makarova

}}

The 2018 Western & Southern Open was a men's and women's tennis tournament played on outdoor hard courts from August 13–19, 2018. It took place at the Lindner Family Tennis Center in Mason, Ohio, a northern suburb of Cincinnati, in the United States. It was a Masters 1000 tournament on the 2018 ATP World Tour and a WTA Premier 5 tournament on the 2018 WTA Tour.{{Cite web|url=http://www.atpworldtour.com/en/tournaments/cincinnati/422/overview|title=Masters 1000 Cincinnati - Overview|website=atworldtour.com|publisher=ATP Tour, Inc.|archive-url=https://web.archive.org/web/20170728175422/http://www.atpworldtour.com/en/tournaments/cincinnati/422/overview|archive-date=July 28, 2017|url-status=live|access-date=July 28, 2017}}{{Cite web|url=http://www.wtatennis.com/tournament/2017-cincinnati|title=2017 Cincinnati|website=wtatennis.com|publisher=WTA Tour, Inc.|archive-url=https://web.archive.org/web/20170728175839/http://www.wtatennis.com/tournament/2017-cincinnati|archive-date=July 28, 2017|url-status=live|access-date=July 28, 2017}} The tournament was one of two headline events in the 2018 US Open Series. The 2018 tournament was the 117th men's edition and the 90th women's edition of the Cincinnati Open.

Points and prize money

=Point distribution=

style="background:#ededed;"\|Men's singles{{cite web\|url=http://www.atpworldtour.com/Rankings/Rankings-FAQ.aspx\|access-date=25 February 2013\|title=Rankings explained\|publisher=atpworldtour.com}} \|rowspan=2\|1000 \|rowspan=2\|600 \|rowspan=2\|360 \|rowspan=2\|180 \|rowspan=2\|90 \|45 \|10 \|25 \|16 \|0
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 doubles \|0 \|{{n/a}} \|{{n/a}} \|{{n/a}} \|{{n/a}}
style="background:#ededed;"\|Women's singles{{cite web\|url=http://www.wtatennis.com/all-about-rankings \|access-date=25 February 2012 \|title=Rankings explained \|publisher=WTA \|url-status=dead \|archive-url=https://web.archive.org/web/20121214232116/http://www.wtatennis.com/all-about-rankings \|archive-date=14 December 2012 }} \|rowspan=2\|900 \|rowspan=2\|585 \|rowspan=2\|350 \|rowspan=2\|190 \|rowspan=2\|105 \|60 \|1 \|30 \|20 \|1
style="background:#ededed;"\|Women's doubles \|5 \|{{n/a}} \|{{n/a}} \|{{n/a}} \|{{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{{Cite web\|url=https://www.atpworldtour.com/en/tournaments/cincinnati/422/overview?detailTab=points\|title=Western & Southern Open 2018}} \|$1,020,425 \|$500,340 \|$251,815 \|$128,050 \|$66,490 \|$35,055 \|$18,930 \|$4,360 \|$2,220
style=background:#ededed\|Women's singles \|$501,975 \|$243,920 \|$122,190 \|$58,185 \|$28,030 \|$14,360 \|$7,745 \|$3,150 \|$1,905
style=background:#ededed\|Men's doubles{{Cite web\|url=https://www.atpworldtour.com/en/tournaments/cincinnati/422/overview?detailTab=points\|title=Western & Southern Open 2018}} \|$316,000 \|$154,710 \|$77,600 \|$39,830 \|$20,590 \|$10,860 \|{{n/a}} \|{{n/a}} \|{{n/a}}
style=background:#ededed\|Women's doubles \|$143,600 \|$72,534 \|$35,910 \|$18,075 \|$9,170 \|$4,530 \|{{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{{Cite web|url=https://www.atpworldtour.com/en/tournaments/cincinnati/422/overview?detailTab=points|title=Western & Southern Open 2018}}

|$1,020,425

|$500,340

|$251,815

|$128,050

|$66,490

|$35,055

|$18,930

|$4,360

|$2,220

style=background:#ededed|Women's singles

|$501,975

|$243,920

|$122,190

|$58,185

|$28,030

|$14,360

|$7,745

|$3,150

|$1,905

style=background:#ededed|Men's doubles{{Cite web|url=https://www.atpworldtour.com/en/tournaments/cincinnati/422/overview?detailTab=points|title=Western & Southern Open 2018}}

|$316,000

|$154,710

|$77,600

|$39,830

|$20,590

|$10,860

|{{n/a}}

style=background:#ededed|Women's doubles

|$143,600

|$72,534

|$35,910

|$18,075

|$9,170

|$4,530

|{{n/a}}

ATP singles main-draw entrants

=Seeds=

The following are the seeded players. Seedings are based on ATP rankings as of August 6, 2018. Rankings and points before are as of August 13, 2018.

class="wikitable sortable"

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

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

! style="width:260px;"|Player

! style="width:90px;" |Points before

! style="width:110px;"|Points defending

! style="width:70px;" |Points won

! style="width:90px;" |Points after

! style="width:350px;" class="unsortable"|Status

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

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

| ~~{{flagicon|ESP}} Rafael Nadal~~

| style="text-align:center;" | 10,220

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

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

| style="text-align:center;" | 10,040

| Withdrew due to schedule change

style="background:#fcc;"

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

| {{flagicon|SUI}} Roger Federer

| style="text-align:center;" | 6,480

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

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

| style="text-align:center;" | 7,080

| Runner-up, lost to {{flagicon|SRB}} Novak Djokovic [10]

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

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

| {{flagicon|GER}} Alexander Zverev

| style="text-align:center;" | 4,845

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

| style="text-align:center;" | 4,845

| Second round lost to {{flagicon|NED}} Robin Haase

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

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

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

| style="text-align:center;" | 5,410

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

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

| style="text-align:center;" | 5,500

| Quarterfinals lost to {{flagicon|BEL}} David Goffin [11]

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

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

| {{flagicon|BUL}} Grigor Dimitrov

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

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

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

| style="text-align:center;" | 3,790

| Third round lost to {{flagicon|SRB}} Novak Djokovic [10]

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

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

| {{flagicon|RSA}} Kevin Anderson

| style="text-align:center;" | 4,535

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

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

| style="text-align:center;" | 4,615

| Third round lost to {{flagicon|BEL}} David Goffin [11]

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

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

| {{flagicon|CRO}} Marin Čilić

| style="text-align:center;" | 4,085

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

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

| style="text-align:center;" | 4,445

| Semifinals lost to {{flagicon|SRB}} Novak Djokovic [10]

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

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

| ~~{{flagicon|AUT}} Dominic Thiem~~

| style="text-align:center;" | 3,665

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

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

| style="text-align:center;" | 3,485

| Withdrew due to illness

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

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

| {{flagicon|USA}} John Isner

| style="text-align:center;" | 3,570

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

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

| style="text-align:center;" | 3,220

| First round lost to {{flagicon|USA}} Sam Querrey

style="background:#cfc;"

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

| {{flagicon|SRB}} Novak Djokovic

| style="text-align:center;" | 3,445

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

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

| style="text-align:center;" | 4,445

| Champion, defeated {{flagicon|SUI}} Roger Federer [2]

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

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

| {{flagicon|BEL}} David Goffin

| style="text-align:center;" | 3,085

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

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

| style="text-align:center;" | 3,435

| Semifinals retired against {{flagicon|SUI}} Roger Federer [2]

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

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

| {{flagicon|ARG}} Diego Schwartzman

| style="text-align:center;" | 2,380

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

| style="text-align:center;" | 2,380

| First round lost to {{flagicon|SUI}} Stan Wawrinka [WC]

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

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

| {{flagicon|ESP}} Pablo Carreño Busta

| style="text-align:center;" | 2,290

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

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

| style="text-align:center;" | 2,380

| Quarterfinals lost to {{flagicon|CRO}} Marin Čilić [6]

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

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

| {{flagicon|GBR}} Kyle Edmund

| style="text-align:center;" | 1,950

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

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

| style="text-align:center;" | 1,985

| Second round lost to {{flagicon|CAN}} Denis Shapovalov

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

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

| {{flagicon|AUS}} Nick Kyrgios

| style="text-align:center;" | 1,855

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

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

| style="text-align:center;" | 1,345

| Third round lost to {{flagicon|ARG}} Juan Martín del Potro [3]

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

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

| {{flagicon|FRA}} Lucas Pouille

| style="text-align:center;" | 1,870

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

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

| style="text-align:center;" | 1,915

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

===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;" | 14

| {{flagicon|ITA}} Fabio Fognini

| style="text-align:center;" | 2,145

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

| style="text-align:center;" | 2,190†

| align="left"|Fatigue

† Fognini is entitled to use an exemption to skip the tournament and substitute his 18th best result (90 points) in its stead. Accordingly, his points after the tournament will remain unchanged.

=Other entrants=

The following players received wild cards into the main singles draw:

{{flagicon|USA}} Mackenzie McDonald
{{flagicon|GBR}} Andy Murray{{Cite web|url=http://www.tennis.com/pro-game/2018/07/andy-murray-victoria-azarenka-receive-cincinnati-wild-cards/75580/|title=Andy Murray, Victoria Azarenka receive Cincinnati wild cards}}
{{flagicon|USA}} Frances Tiafoe
{{flagicon|SUI}} Stan Wawrinka

The following players received entry from the singles qualifying draw:

{{flagicon|ROU}} Marius Copil
{{flagicon|POL}} Hubert Hurkacz
{{flagicon|USA}} Bradley Klahn
{{flagicon|USA}} Denis Kudla
{{flagicon|SRB}} Dušan Lajović
{{flagicon|RUS}} Daniil Medvedev
{{flagicon|USA}} Michael Mmoh

The following players received entry as lucky losers:

{{flagicon|ESP}} Guillermo García López
{{flagicon|TUN}} Malek Jaziri

=Withdrawals=

;Before the tournament

{{flagicon|ESP}} Roberto Bautista Agut → replaced by {{flagicon|FRA}} Benoît Paire
{{flagicon|CZE}} Tomáš Berdych → replaced by {{flagicon|POR}} João Sousa
{{flagicon|ITA}} Fabio Fognini → replaced by {{flagicon|FRA}} Jérémy Chardy
{{flagicon|FRA}} Gaël Monfils → replaced by {{flagicon|HUN}} Márton Fucsovics
{{flagicon|ESP}} Rafael Nadal → replaced by {{flagicon|TUN}} Malek Jaziri
{{flagicon|AUT}} Dominic Thiem → replaced by {{flagicon|ESP}} Guillermo García López

=Retirements=

{{flagicon|BEL}} David Goffin

ATP doubles main-draw entrants

=Seeds=

class="sortable wikitable"
width="70"\| Country ! width="175"\| Player ! width="70"\| Country ! width="175"\| Player ! Rank¹ ! Seed
{{flag\|AUT}} \|Oliver Marach \|{{flag\|CRO}} \|Mate Pavić \|5 \|1
{{flagu\|USA}} \|Mike Bryan \|{{flagu\|USA}} \|Jack Sock \|9 \|2
{{flag\|FIN}} \|Henri Kontinen \|{{flag\|AUS}} \|John Peers \|9 \|3
style="background:#cfc;" \|{{flag\|GBR}} \|Jamie Murray \|{{flag\|BRA}} \|Bruno Soares \|19 \|4
{{flag\|POL}} \|Łukasz Kubot \|{{flag\|BRA}} \|Marcelo Melo \|25 \|5
{{flag\|NED}} \|Jean-Julien Rojer \|{{flag\|ROU}} \|Horia Tecău \|28 \|6
style="background:#fcc;" \|{{flag\|COL}} \|Juan Sebastián Cabal \|{{flag\|COL}} \|Robert Farah \|31 \|7
{{flag\|FRA}} \|Nicolas Mahut \|{{flag\|FRA}} \|Édouard Roger-Vasselin \|32 \|8

class="sortable wikitable"

width="70"| Country

! width="175"| Player

! width="70"| Country

! width="175"| Player

! Rank¹

! Seed

|{{flag|CRO}}

|{{flagu|USA}}

|{{flag|AUS}}

style="background:#cfc;"

|{{flag|GBR}}

|{{flag|BRA}}

|19

|{{flag|BRA}}

|25

|{{flag|ROU}}

|28

style="background:#fcc;"

|{{flag|COL}}

|Juan Sebastián Cabal

|{{flag|COL}}

|Robert Farah

|31

|Nicolas Mahut

|{{flag|FRA}}

|Édouard Roger-Vasselin

|32

Rankings are as of August 6, 2018

=Other entrants=

The following pairs received wildcards into the doubles main draw:

{{flagicon|USA}} Ryan Harrison / {{flagicon|USA}} Nicholas Monroe
{{flagicon|USA}} Mackenzie McDonald / {{flagicon|CAN}} Daniel Nestor

The following pair received entry as alternates:

{{flagicon|ARG}} Leonardo Mayer / {{flagicon|ESP}} Albert Ramos Viñolas

=Withdrawals=

;Before the tournament

{{flagicon|AUT}} Dominic Thiem

;During the tournament

{{flagicon|AUT}} Alexander Peya

WTA singles main-draw entrants

=Seeds=

class="sortable wikitable"
width="70"\| Country ! width="175"\| Player ! Rank¹ ! Seed
style="background:#fcc;" \|{{flag\|ROU}} \|Simona Halep \|1 \|1
{{flag\|DEN}} \|Caroline Wozniacki \|2 \|2
{{flagu\|USA}} \|Sloane Stephens \|3 \|3
{{flag\|GER}} \|Angelique Kerber \|4 \|4
{{flag\|UKR}} \|Elina Svitolina \|5 \|5
{{flag\|FRA}} \|Caroline Garcia \|6 \|6
{{flag\|ESP}} \|Garbiñe Muguruza \|7 \|7
{{flag\|CZE}} \|Petra Kvitová \|8 \|8
{{flag\|CZE}} \|Karolína Plíšková \|9 \|9
{{flag\|GER}} \|Julia Görges \|10 \|10
{{flag\|LAT}} \|Jeļena Ostapenko \|11 \|11
{{flag\|RUS}} \|Daria Kasatkina \|12 \|12
{{flagu\|USA}} \|Madison Keys \|13 \|13
~~{{flagu\|USA}}~~ \|~~Venus Williams~~ \|14 \|14
{{flag\|BEL}} \|Elise Mertens \|15 \|15
{{flag\|AUS}} \|Ashleigh Barty \|16 \|16
{{flag\|JPN}} \|Naomi Osaka \|17 \|17

class="sortable wikitable"

width="70"| Country

! width="175"| Player

! Rank¹

! Seed

style="background:#fcc;"

|{{flag|ROU}}

|10

|11

|12

|13

~~{{flagu|USA}}~~

|~~Venus Williams~~

|14

|Elise Mertens

|15

|Ashleigh Barty

|16

|Naomi Osaka

|17

¹ Rankings are as of August 6, 2018

=Other entrants=

The following players received wild cards into the main singles draw:

{{flagicon|USA}} Amanda Anisimova
{{flagicon|BLR}} Victoria Azarenka
{{flagicon|RUS}} Svetlana Kuznetsova{{Cite web|url=https://www.wsopen.com/news/western__southern_open_wild_cards_awarded_to_mattek-sands_kuznetsova_vondrousova_and_anisimova/|title=WESTERN & SOUTHERN OPEN WILD CARDS AWARDED TO MATTEK-SANDS, KUZNETSOVA, VONDROUSOVA AND ANISIMOVA|website=www.wsopen.com|access-date=2018-08-07|archive-date=2018-08-07|archive-url=https://web.archive.org/web/20180807220417/https://www.wsopen.com/news/western__southern_open_wild_cards_awarded_to_mattek-sands_kuznetsova_vondrousova_and_anisimova/|url-status=dead}}
{{flagicon|USA}} Bethanie Mattek-Sands
{{flagicon|CZE}} Markéta Vondroušová

The following player received entry using a protected ranking:

{{flagicon|USA}} Serena Williams

The following players received entry from the singles qualifying draw:

{{flagicon|ROU}} Ana Bogdan
{{flagicon|FRA}} Alizé Cornet
{{flagicon|EST}} Kaia Kanepi
{{flagicon|USA}} Allie Kiick
{{flagicon|SVK}} Viktória Kužmová
{{flagicon|USA}} Varvara Lepchenko
{{flagicon|GER}} Tatjana Maria
{{flagicon|CRO}} Petra Martić
{{flagicon|SWE}} Rebecca Peterson
{{flagicon|BLR}} Aliaksandra Sasnovich
{{flagicon|AUS}} Ajla Tomljanović
{{flagicon|SUI}} Stefanie Vögele

The following player received entry as a lucky loser:

{{flagicon|ITA}} Camila Giorgi

=Withdrawals=

;Before the tournament

{{flagicon|ROU}} Mihaela Buzărnescu → replaced by {{flagicon|USA}} Danielle Collins
{{flagicon|SVK}} Dominika Cibulková → replaced by {{flagicon|HUN}} Tímea Babos
{{flagicon|RUS}} Maria Sharapova → replaced by {{flagicon|CZE}} Kateřina Siniaková
{{flagicon|USA}} Venus Williams → replaced by {{flagicon|ITA}} Camila Giorgi
{{flagicon|CHN}} Zhang Shuai → replaced by {{flagicon|SRB}} Aleksandra Krunić

=Retirements=

{{flagicon|DEN}} Caroline Wozniacki

WTA doubles main-draw entrants

=Seeds=

class="sortable wikitable"
width="70"\| Country ! width="175"\| Player ! width="70"\| Country ! width="175"\| Player ! Rank¹ ! Seed
{{flag\|CZE}} \|Barbora Krejčíková \|{{flag\|CZE}} \|Kateřina Siniaková \|6 \|1
{{flag\|HUN}} \|Tímea Babos \|{{flag\|FRA}} \|Kristina Mladenovic \|11 \|2
{{flag\|CZE}} \|Andrea Sestini Hlaváčková \|{{flag\|CZE}} \|Barbora Strýcová \|15 \|3
{{flag\|SLO}} \|Andreja Klepač \|{{flag\|ESP}} \|María José Martínez Sánchez \|26 \|4
{{flagu\|USA}} \|Nicole Melichar \|{{flag\|CZE}} \|Květa Peschke \|30 \|5
style="background:#fcc;" \|{{flag\|BEL}} \|Elise Mertens \|{{flag\|NED}} \|Demi Schuurs \|45 \|6
style="background:#cfc;" \|{{flag\|CZE}} \|Lucie Hradecká \|{{flag\|RUS}} \|Ekaterina Makarova \|52 \|7
{{flag\|ROU}} \|Irina-Camelia Begu \|{{flag\|ROU}} \|Monica Niculescu \|57 \|8

class="sortable wikitable"

width="70"| Country

! width="175"| Player

! width="70"| Country

! width="175"| Player

! Rank¹

! Seed

|{{flag|CZE}}

|{{flag|FRA}}

|11

|Andrea Sestini Hlaváčková

|{{flag|CZE}}

|Barbora Strýcová

|15

|Andreja Klepač

|{{flag|ESP}}

|María José Martínez Sánchez

|26

|Nicole Melichar

|{{flag|CZE}}

|Květa Peschke

|30

style="background:#fcc;"

|{{flag|BEL}}

|Elise Mertens

|{{flag|NED}}

|Demi Schuurs

|45

style="background:#cfc;"

|{{flag|CZE}}

|{{flag|RUS}}

|52

|{{flag|ROU}}

|57

Rankings are as of August 6, 2018

=Other entrants=

The following pairs received wildcards into the doubles main draw:

{{flagicon|USA}} Jennifer Brady / {{flagicon|USA}} Caroline Dolehide
{{flagicon|USA}} Lauren Davis / {{flagicon|USA}} Nicole Gibbs

The following pair received entry as alternates:

{{flagicon|USA}} Kaitlyn Christian / {{flagicon|USA}} Sabrina Santamaria

=Withdrawals=

;Before the tournament

{{flagicon|AUS}} Ashleigh Barty

=Retirements=

{{flagicon|USA}} Bethanie Mattek-Sands

Champions

=Men's singles=

{{flagicon|SRB}} Novak Djokovic def. {{flagicon|SUI}} Roger Federer, 6–4, 6–4

=Women's singles=

{{flagicon|NED}} Kiki Bertens def. {{flagicon|ROU}} Simona Halep, 2–6, 7–6^(8–6), 6–2

=Men's doubles=

{{flagicon|GBR}} Jamie Murray / {{flagicon|BRA}} Bruno Soares def. {{flagicon|COL}} Juan Sebastián Cabal / {{flagicon|COL}} Robert Farah, 4–6, 6–3, [10–6]

=Women's doubles=

{{flagicon|CZE}} Lucie Hradecká / {{flagicon|RUS}} Ekaterina Makarova def. {{flagicon|BEL}} Elise Mertens / {{flagicon|NED}} Demi Schuurs, 6–2, 7–5

References

External links

{{official website|http://www.wsopen.com}}

Category:2018 ATP World Tour

Category:2018 WTA Tour

2018

Cincinnati

Category:August 2018 sports events in the United States