2018 Connecticut Open – Singles
| Singles | |
|---|---|
| 2018 Connecticut Open | |
| Champion | Aryna Sabalenka |
| Runner-up | Carla Suárez Navarro |
| Score | 6–1, 6–4 |
| Draw | 30 |
Daria Gavrilova was the defending champion, but lost to Aryna Sabalenka in the second round.
Sabalenka went on to win her first WTA Tour title, defeating Carla Suárez Navarro in the final, 6–1, 6–4. Suárez Navarro reached the final despite playing only one completed match in the first four rounds.