2018 Citi Open

The 2018 Washington Open (called the Citi Open for sponsorship reasons) was a tennis tournament played on outdoor hard courts. It was the 50th edition (for the men) and the 8th edition (for the women) of the Washington Open. The event was part of the ATP World Tour 500 series of the 2018 ATP World Tour, and of the WTA International tournaments of the 2018 WTA Tour. It took place at the William H.G. FitzGerald Tennis Center in Washington, D.C., United States, from July 30 to August 5, 2018.

Men's singles

 * 🇩🇪 Alexander Zverev defeated 🇦🇺 Alex de Minaur, 6–2, 6–4

Women's singles

 * 🇷🇺 Svetlana Kuznetsova defeated Donna Vekić, 4–6, 7–6(9–7), 6–2

Men's doubles

 * 🇬🇧 Jamie Murray / 🇧🇷 Bruno Soares defeated 🇺🇸 Mike Bryan / 🇫🇷 Édouard Roger-Vasselin, 3–6, 6–3, [10–4]

Women's doubles

 * 🇨🇳 Han Xinyun / Darija Jurak defeated  Alexa Guarachi / 🇳🇿 Erin Routliffe, 6–3, 6–2

Prize money
1 Qualifiers prize money is also the Round of 64 prize money


 * per team

Seeds

 * 1 Rankings are as of July 23, 2018

Other entrants
The following players received wild cards into the main singles draw:
 * 🇷🇺 Daniil Medvedev
 * 🇺🇸 Tommy Paul
 * 🇺🇸 Noah Rubin
 * 🇺🇸 Tim Smyczek
 * Stan Wawrinka

The following player received entry using a protected ranking:
 * 🇦🇺 James Duckworth

The following players received entry from the singles qualifying draw:
 * 🇦🇺 Alex Bolt
 * 🇺🇸 Mitchell Krueger
 * 🇺🇸 Thai-Son Kwiatkowski
 * 🇫🇷 Vincent Millot
 * 🇯🇵 Yosuke Watanuki
 * 🇺🇸 Donald Young

The following player received entry as a lucky loser:
 * 🇦🇺 Jason Kubler

Withdrawals

 * Before the tournament
 * Kevin Anderson → replaced by 🇵🇱 Hubert Hurkacz
 * 🇨🇿 Tomáš Berdych → replaced by 🇺🇸 Mackenzie McDonald
 * 🇮🇳 Yuki Bhambri → replaced by 🇦🇺 James Duckworth
 * 🇺🇦 Alexandr Dolgopolov → replaced by 🇧🇾 Ilya Ivashka
 * 🇦🇺 Nick Kyrgios → replaced by 🇦🇺 Jason Kubler


 * During the tournament
 * 🇬🇧 Andy Murray

Retirements

 * 🇫🇷 Vincent Millot

Seeds

 * 1 Rankings are as of July 23, 2018

Other entrants
The following pairs received wildcards into the doubles main draw:
 * 🇺🇸 James Cerretani / 🇮🇳 Leander Paes
 * 🇺🇸 Denis Kudla / 🇺🇸 Frances Tiafoe

The following pair received entry from the doubles qualifying draw:
 * 🇮🇳 Divij Sharan / 🇳🇿 Artem Sitak

Withdrawals

 * Before the tournament
 * 🇦🇺 Nick Kyrgios


 * During the tournament
 * 🇩🇪 Mischa Zverev

Seeds

 * 1 Rankings are as of July 23, 2018

Other entrants
The following players received wild cards into the main singles draw:
 * 🇨🇦 Bianca Andreescu
 * 🇺🇸 Bethanie Mattek-Sands
 * 🇬🇧 Katie Swan

The following players received entry as a special exempt:
 * 🇨🇳 Zheng Saisai

The following players received entry from the qualifying draw:
 * 🇬🇧 Harriet Dart
 * 🇺🇦 Anhelina Kalinina
 * 🇺🇸 Allie Kiick
 * 🇷🇺 Sofya Zhuk

The following players received entry as lucky losers:
 * 🇧🇪 Ysaline Bonaventure
 * 🇯🇵 Mayo Hibi

Withdrawals

 * Before the tournament
 * 🇨🇦 Bianca Andreescu → replaced by 🇯🇵 Mayo Hibi
 * 🇰🇿 Zarina Diyas → replaced by 🇦🇺 Olivia Rogowska
 * 🇧🇪 Kirsten Flipkens → replaced by 🇯🇵 Nao Hibino
 * 🇦🇺 Daria Gavrilova → replaced by 🇷🇺 Natalia Vikhlyantseva
 * 🇮🇹 Camila Giorgi → replaced by 🇭🇺 Fanny Stollár
 * Hsieh Su-wei → replaced by 🇨🇳 Han Xinyun
 * 🇷🇴 Monica Niculescu → replaced by 🇺🇸 Kristie Ahn
 * Anastasija Sevastova → replaced by 🇬🇧 Katie Boulter
 * 🇨🇿 Barbora Strýcová → replaced by 🇩🇪 Andrea Petkovic
 * 🇺🇦 Lesia Tsurenko → replaced by 🇺🇸 Caroline Dolehide
 * Caroline Wozniacki → replaced by 🇧🇪 Ysaline Bonaventure


 * During the tournament
 * 🇯🇵 Nao Hibino

Seeds

 * 1 Rankings are as of July 23, 2018

Other entrants
The following pair received a wildcard into the doubles main draw:
 * 🇺🇸 Nicole Hammond / 🇨🇿 Kristýna Nepivodová
 * 🇺🇸 Alana Smith / 🇺🇸 Natasha Subhash

The following pair received entry as alternates:
 * 🇬🇧 Katie Swan / Rosalie van der Hoek

Withdrawals

 * Before the tournament
 * 🇰🇿 Galina Voskoboeva
 * 🇨🇳 Zheng Saisai