The meeting lasted 2 hours 17 minutes and ended with a score of 7: 5, 6: 7 (5: 7), 1: 6.
Sakkari will play in the quarterfinals with Johanna Conte from Great Britain, who defeated Russian Vera Zvonareva.
Earlier it was reported that Karen Khachanov lost to Roberto Bautista-Agut and was eliminated from Masters in New York.