2018 Connecticut Open

The 2018 Connecticut Open (also known as the 2018 Connecticut Open presented by United Technologies for sponsorship reasons) was a tennis tournament played on outdoor hard courts. It was the 50th edition of the Connecticut Open, and part of the Premier Series of the 2018 WTA Tour. It took place at the Cullman-Heyman Tennis Center in New Haven, Connecticut, United States, from August 19 through August 25. It was the last event of the 2018 US Open Series before the 2018 US Open.

Prize money
1Qualifiers prize money is also the Round of 32 prize money.
 * per team

Seeds

 * Rankings are as of August 13, 2018

Other entrants
The following players received wildcards into the singles main draw:
 * 🇺🇸 Danielle Collins
 * 🇷🇴 Simona Halep
 * 🇨🇿 Karolína Plíšková
 * 🇺🇸 CoCo Vandeweghe

The following players received entry using protected rankings:
 * Timea Bacsinszky
 * 🇩🇪 Laura Siegemund

The following players received entry from the qualifying draw:
 * 🇷🇴 Ana Bogdan
 * 🇰🇿 Zarina Diyas
 * 🇮🇹 Camila Giorgi
 * Monica Puig
 * 🇧🇾 Aliaksandra Sasnovich
 * 🇺🇦 Dayana Yastremska

The following players received entry as lucky losers:
 * Belinda Bencic
 * 🇫🇷 Pauline Parmentier
 * 🇦🇺 Samantha Stosur

Withdrawals

 * Before the tournament
 * 🇦🇺 Ashleigh Barty → replaced by 🇦🇺 Samantha Stosur
 * Kiki Bertens → replaced by 🇫🇷 Pauline Parmentier
 * 🇷🇴 Mihaela Buzărnescu → replaced by 🇷🇴 Irina-Camelia Begu
 * 🇷🇴 Simona Halep → replaced by Belinda Bencic
 * 🇷🇺 Daria Kasatkina → replaced by Maria Sakkari


 * During the tournament
 * 🇬🇧 Johanna Konta

Retirements

 * 🇨🇿 Petra Kvitová
 * Monica Puig
 * 🇺🇸 CoCo Vandeweghe

Seeds

 * Rankings are as of 13 August 2018

Other entrants
The following pair received a wildcard into the doubles main draw:
 * 🇺🇸 Desirae Krawczyk / 🇺🇸 Sachia Vickery
 * 🇨🇿 Karolína Plíšková / 🇨🇿 Kristýna Plíšková

The following pairs received entry as alternates:
 * 🇦🇺 Monique Adamczak / Oksana Kalashnikova
 * 🇧🇪 Kirsten Flipkens / 🇧🇪 Alison Van Uytvanck

Withdrawals

 * Before the tournament
 * 🇬🇧 Johanna Konta
 * 🇺🇸 CoCo Vandeweghe

Retirements

 * Demi Schuurs

Singles

 * 🇧🇾 Aryna Sabalenka defeated 🇪🇸 Carla Suárez Navarro, 6–1, 6–4

Doubles

 * 🇨🇿 Andrea Sestini Hlaváčková / 🇨🇿 Barbora Strýcová defeated Hsieh Su-wei / 🇩🇪 Laura Siegemund, 6–4, 6–7(7–9), [10–4]