Two-time Grand Slam champions Ashleigh Barty, Simona Halep and Garbine Muguruza all seek their first major title on hardcourts at the US Open after ultimate success on grass and clay.

World number one Barty captured the 2019 French Open crown and July's Wimbledon title, but has never escaped the fourth round in New York and only made the semi-finals in her homeland's Slam, the Australian Open.