WTA 500 Washington R2: A.Kalinskaya def. J.Tjen 1-6, 6-3, 7-6(7)

Tjen and Kalinskaya had 2 match points a piece in the 3rd but Anna remembered she had finalist points to defend and was the one who managed to convert. She'll face the winner of Pegula-Frech in the quarterfinals