Updated

Women's qualifiers who have advanced to the fourth round or further at the U.S. Open since 1977:

1981 — Barbara Gerken, United States

1984 — Petra Delhees-Jauch, Switzerland

1996 — Anna Kournikova, Russia

2008 — Anna-Lena Groenefeld, Germany

2013 — Camila Giorgi, Italy

2014 — Aleksandra Krunic, Serbia; Mirjana Lucic-Baroni, Croatia