Davis attended Iowa State University, and played for the Iowa State Cyclones football team from 1994 to 1996. He played sparingly his freshman year under Jim Walden but flourished under new head coach Dan McCarney during Davis's final two seasons. Davis set numerous Cyclone team records, including most career rushing yards, total rushing yards in a single season, rushing yards in a game, most 100-yard rushing games in a season and career, most 200-yard rushing games in a season and career, and most consecutive 100-yard rushing games, and most consecutive games scoring a touchdown. He also holds the Iowa State Cyclones football record for most career rushing touchdowns and is tied for first for most career total touchdowns. He became the first running back in NCAA Division I-A history to gain 2,000 yards in two different seasons. During his three seasons at ISU, the Cyclones finished last in the Big Eight standings in his sophomore and junior seasons and last in the Big 12 North division standings his senior year. In 1996, Davis was selected as the Big 12 Offensive Player of the Year. He was recognized as a consensus first-team All-American at running back in 1995 and 1996. Davis finished fifth in voting for the Heisman Trophy in 1995. In 1996, he narrowly finished second to winner Danny Wuerffel. He won three out of four Heisman regions, but lost badly in the South region. He was also nosed out for the Doak Walker Award by another Big 12 running back, Byron Hanspard of Texas Tech. In both cases, he was largely hampered by the fact that he played on a losing team. He did however win the Jim Brown Award and the Chic Harley Award given to the top running back and best college football player respectively. He was inducted into the Iowa State Hall of Fame in 2007. Davis was inducted into the College Football Hall of Fame in 2016.
College statistics
Professional career
Davis elected to forgo his senior season of eligibility and declared for the 1997 NFL Draft. He was drafted in the 3rd round by the New Orleans Saints. During his three seasons with the Saints Davis started 11 games and rushed for 446 yards on 150 attempts. Davis left the Saints after the 1999 season and was drafted by the Birmingham Thunderbolts of the XFL, but was cut in training camp. Davis then signed with the Hamilton Tiger-Cats of the CFL as a running back and kick-returner for the 2001 season. In 2004, he led the league in rushing and set the franchise record with 1,656 yards. He was traded mid-season in 2005 to the Edmonton Eskimos in exchange for a package headlined by Brock Ralph, Tay Cody, and the first overall draft pick in the 2006 Draft. He was able to play a key role in leading the Eskimos to winning the 93rd Grey Cup that year. On February 23, 2007, the Eskimos released Davis. He was later signed to the Toronto Argonauts practice roster on September 25, 2007. Davis was initially released by the Argonauts on October 17, 2007, but rejoined their practice roster on October 23, 2007.
NFL statistics
CFL statistics
Personal life
Davis is the brother of Darren Davis, who played running back at Iowa State beginning in Troy's final season until 1999. Darren ran for over 1,000 yards in three consecutive seasons before ending his career second in career rushing yards behind his older brother. Davis was arrested for public intoxication the evening after the celebration of his induction in the College Football Hall of Fame.
