Madison Keys, 16, Beats Jill Craybas, 37, In US Open 1st Round

Madison Keys of the United States returns the ball against Jill Craybas of the United States during Day One of the 2011 US Open at the USTA Billie Jean King National Tennis Center on August 29, 2011. (Photo by Chris Trotman/Getty Images)

Madison Keys of the United States returns the ball against Jill Craybas of the United States during Day One of the 2011 US Open at the USTA Billie Jean King National Tennis Center on August 29, 2011. (Photo by Chris Trotman/Getty Images)

NEW YORK (AP) – Madison Keys, a 16-year-old from Boca Raton, Fla., became the youngest player since 2005 to win a U.S. Open match by beating 37-year-old Jill Craybas 6-2, 6-4 on Monday.

Keys was making her Grand Slam debut and third tour-level appearance. At 455th, she’s the lowest-ranked woman in the field.

Craybas was playing in her 45th consecutive Grand Slam tournament, but is ranked 111th and – like Keys – needed a wild card from the U.S. Tennis Association to get into the main draw. She made her Grand Slam debut at the 1996 U.S. Open, about 18 months after Keys was born, and was the second-oldest entrant this year.

Four 16-year-olds, all days or weeks younger than Keys – Vania King, Nicole Vaidisova, Sessil Karatantcheva and Alexa Glatch – won U.S. Open matches in 2006.

(Copyright 2011 by The Associated Press. All Rights Reserved.)