In 2006 she helped the Terrapins win the NCAA Championship, and in 2007 she starred in helping the USA win the FIBA World Championship under 21 for women. She is the first player in the University of Maryland's history to score 2,000 points and grab 1,000 rebounds for either the men's or women's teams, and only the 106th women's college basketball player to do so.
Her jersey was retired and raised to the rafters at the Comcast Center during her last regular season home game. She was the first Maryland player to have her jersey raised to the rafters while still active.
Langhorne was a member of the USA Women's U19 team which competed in the 2005 U19 World Championships in Tunis, Tunisia. The USA team won all eight games, winning the gold medal. Langhorne led the team in scoring with 16.6 points per game and hit nine out of nine field goals attempts in the opening round game against South Korea.