Crosby was a first-team All-Big 12 selection in 2004, 2005, and 2006. Following his junior season in 2005, he was recognized as a unanimous first-team All-American, having received first-team honors from the Associated Press, the Football Writers Association of America, "The Sporting News", and Walter Camp Football Foundation. As a senior, he was again selected as a first-team All-American by "Pro Football Weekly" and the Walter Camp Football Foundation. He was the runner-up for the Lou Groza Award, despite being heavily favored to win. During his senior season, he became the first player in Big 12 Conference history to be named player of the week eight times, and became Colorado's all-time leading scorer, with 308 career points.