The women’s semifinals at the United States Open, scheduled for Thursday night, have been postponed until Friday morning because of rain.
Serena Williams, who is in pursuit of a Grand Slam, was to play Roberta Vinci at 7 p.m., Eastern time, on Thursday. That match and the Simona Halep-Flavia Pennetta match have been rescheduled for Friday, starting at 11 a.m.
The men’s semifinals, scheduled to begin at 3 p.m. Friday, will be played after the women’s semifinals, but not before 5 p.m.