2018 Citi Open – Women's singles

Women's singles
2018 Citi Open
Champion Svetlana Kuznetsova
Runner-up Donna Vekić
Score4–6, 7–6(9–7), 6–2

Ekaterina Makarova was the defending champion, but lost in the first round to Ana Bogdan.

Svetlana Kuznetsova won the title, beating Donna Vekić in the final, 4–6, 7–6(9–7), 6–2, despite being four match points down in the second set.