Brigham Young University
Thorn was a four-year starter as shooting guard for the women's basketball team at Brigham Young University. She graduated in 2003, majoring in Fitness and Wellness Management.
New York Liberty
Thorn was selected by the New York Liberty in the second round (17th overall pick) of the 2003 WNBA Draft, on April 25, 2003. She became a starter in 2007, after Vickie Johnson and Becky Hammon had departed the Liberty. Thorn was named WNBA Eastern Conference Player of the Week for the week ending May 29, 2007.
In the offseason, she has been serving as an assistant coach for her alma mater, Brigham Young University.