See main article: 1991 US Open (tennis).
Monica Seles defeated Martina Navratilova in the final, 7–6(7–1), 6–1 to win the women's singles tennis title at the 1991 US Open. It was her third major title of the year. With the win, Seles recaptured the world No. 1 ranking from Steffi Graf, and would hold it until her 1993 stabbing.
Gabriela Sabatini was the defending champion, but lost in the quarterfinals to Jennifer Capriati.
This marked the first major in which 1998 champion and future world No. 1 Lindsay Davenport competed in the main draw;[1] she lost in the first round to Debbie Graham.
See main article: 1991 US Open – Women's singles qualifying.