2019 Western & Southern Open

The 2019 Western & Southern Open was a men's and women's tennis tournament played on outdoor hard courts from August 12–18, 2019. It was a Masters 1000 tournament on the 2019 ATP Tour and a WTA Premier 5 tournament on the 2019 WTA Tour. The tournament was one of two headline events in the 2019 US Open Series. The 2019 tournament was the 118th men's edition and the 91st women's edition of the Cincinnati Open and took place at the Lindner Family Tennis Center in Mason, Ohio, a northern suburb of Cincinnati, in the United States.

Seeds
The following are the seeded players. Seedings are based on ATP rankings as of August 5, 2019. Rankings and points before are as of August 12, 2019.

† The player used an exemption to skip the tournament in 2018. Accordingly, points for his 18th best result are deducted instead.

‡ The player did not qualify for the tournament in 2018. Accordingly, points for his 18th best result are deducted instead.

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

Other entrants
The following players received wild cards into the main singles draw:
 * 🇦🇷 Juan Ignacio Londero
 * 🇬🇧 Andy Murray
 * 🇺🇸 Reilly Opelka
 * 🇺🇸 Sam Querrey

The following player received entry using a protected ranking:
 * 🇫🇷 Richard Gasquet

The following players received entry from the singles qualifying draw:
 * 🇪🇸 Pablo Carreño Busta
 * Ivo Karlović
 * 🇷🇸 Miomir Kecmanović
 * 🇺🇸 Denis Kudla
 * 🇯🇵 Yoshihito Nishioka
 * 🇷🇺 Andrey Rublev
 * 🇳🇴 Casper Ruud

The following players received entry as lucky losers:
 * 🇦🇷 Federico Delbonis
 * 🇰🇿 Mikhail Kukushkin
 * João Sousa

Withdrawals

 * Before the tournament
 * Kevin Anderson → replaced by 🇮🇹 Lorenzo Sonego
 * 🇦🇷 Juan Martín del Potro → replaced by 🇦🇺 Jordan Thompson
 * 🇮🇹 Fabio Fognini → replaced by João Sousa
 * 🇪🇸 Rafael Nadal → replaced by 🇰🇿 Mikhail Kukushkin
 * 🇨🇦 Milos Raonic → replaced by 🇧🇬 Grigor Dimitrov
 * 🇦🇹 Dominic Thiem → replaced by 🇦🇷 Federico Delbonis


 * During the tournament
 * 🇯🇵 Yoshihito Nishioka (illness)

Retirements

 * 🇪🇸 Fernando Verdasco

Seeds

 * Rankings are as of August 5, 2019

Other entrants
The following pairs received wildcards into the doubles main draw:
 * 🇷🇸 Novak Djokovic / 🇷🇸 Janko Tipsarević
 * 🇺🇸 Ryan Harrison / 🇺🇸 Jack Sock
 * 🇺🇸 Nicholas Monroe / 🇺🇸 Tennys Sandgren

The following pairs received entry as alternates:
 * 🇮🇳 Rohan Bopanna / 🇨🇦 Denis Shapovalov
 * 🇫🇷 Adrian Mannarino / 🇫🇷 Lucas Pouille

Withdrawals

 * Before the tournament
 * 🇮🇹 Fabio Fognini
 * 🇦🇹 Dominic Thiem

Seeds

 * 1 Rankings are as of August 5, 2019

Other entrants
The following players received wild cards into the main singles draw:
 * 🇷🇺 Svetlana Kuznetsova
 * 🇺🇸 Caty McNally
 * 🇺🇸 Bernarda Pera
 * 🇺🇸 Alison Riske
 * 🇷🇺 Maria Sharapova

The following players received entry from the singles qualifying draw:
 * 🇺🇸 Jennifer Brady
 * 🇺🇸 Lauren Davis
 * 🇰🇿 Zarina Diyas
 * 🇹🇳 Ons Jabeur
 * 🇷🇺 Veronika Kudermetova
 * 🇸🇪 Rebecca Peterson
 * 🇦🇺 Astra Sharma
 * 🇵🇱 Iga Świątek

The following players received entry as lucky losers:
 * 🇺🇸 Jessica Pegula
 * Monica Puig
 * 🇨🇿 Barbora Strýcová
 * 🇨🇳 Wang Yafan

Withdrawals

 * Before the tournament
 * 🇨🇦 Bianca Andreescu → replaced by Monica Puig
 * 🇺🇸 Amanda Anisimova → replaced by 🇨🇿 Barbora Strýcová
 * 🇺🇸 Catherine Bellis → replaced by 🇺🇸 Venus Williams
 * 🇺🇸 Danielle Collins → replaced by 🇸🇰 Viktória Kužmová
 * 🇺🇦 Lesia Tsurenko → replaced by 🇨🇳 Wang Yafan
 * 🇨🇿 Markéta Vondroušová → replaced by 🇷🇺 Ekaterina Alexandrova
 * 🇺🇸 Serena Williams → replaced by 🇺🇸 Jessica Pegula

Retirements

 * Belinda Bencic (left foot injury)
 * 🇯🇵 Naomi Osaka (left knee injury)

Seeds

 * Rankings are as of August 5, 2019

Other entrants
The following pairs received wildcards into the doubles main draw:
 * 🇺🇸 Jennifer Brady / 🇺🇸 Jessica Pegula
 * 🇺🇸 Caty McNally / 🇺🇸 Alison Riske
 * 🇨🇿 Karolína Plíšková / 🇨🇿 Kristýna Plíšková

Withdrawals

 * During the tournament
 * Hsieh Su-wei (low back injury)
 * Donna Vekić (low back injury)

Men's singles

 * 🇷🇺 Daniil Medvedev def. 🇧🇪 David Goffin, 7–6(7–3), 6–4

Women's singles

 * 🇺🇸 Madison Keys def. 🇷🇺 Svetlana Kuznetsova, 7–5, 7–6(7–5)

Men's doubles

 * Ivan Dodig / 🇸🇰 Filip Polášek def. 🇨🇴 Juan Sebastián Cabal / 🇨🇴 Robert Farah, 4–6, 6–4, [10–6]

Women's doubles

 * 🇨🇿 Lucie Hradecká / Andreja Klepač def. 🇩🇪 Anna-Lena Grönefeld /  Demi Schuurs, 6–4, 6–1