One for the New York night owls at the US Tennis Open..

The seventh seed from China has won a back-and-forth fourth round battle with Croatia's Donna Vekic in three sets - on TVNZ Plus.

The match went for almost three hours - and wrapped up at almost 2.30am local time.

Others through to the quarterfinals in the women's draw include Aryna Sabalenka , Emma Navarro and Paola Badosa .