The last-16 match pitted Vandeweghe’s power against Wozniacki’s consistency. The American, ranked 25, was more aggressive and took more risks, and her strategy paid off – she fired 38 winners across the net compared with her opponent’s 16.
There was little between the players in the first set, which Vandeweghe edged in the tiebreak, cheered on by her Australian coach Pat Cash, a former Wimbledon champion.
She closed out the match with a break at the end of the second set, forcing an error from the 26-year-old Wozniacki with a ferocious cross-court forehand.
By reaching the quarter-finals, the 25-year-old Vandeweghe has matched her best performance at the All England Club. She will face Slovakia’s Magdalena Rybarikova, ranked 87.