As a player, he set many school records, including the career interception mark of 18 which still stands at Oklahoma State today. He was 195 pounds and could step the 100 yard dash in 9.7 compared with the world record at the time of 9.4. He led the nation in total offense in 1944 and in total offense and rushing in 1945 when he finished third in the Heisman Trophy voting behind
Army's Glenn Davis and
Doc Blanchard. The Aggies were 8-1 in 1944 and 9-0 in 1945—the only unbeaten/untied season in Oklahoma A&M/State football history. Due to injuries, Fenimore played sparingly in the 1946 season and despite the risk, the
Chicago Bears made Fenimore the first pick overall in the
1947 NFL draft. He would play only the
1947 season in Chicago appearing in 10 games. In 1972 Fenimore was inducted into the
College Football Hall of Fame. In 2007, Fenimore was inducted into the Cotton Bowl Hall of Fame. Fenimore became the third member to be inducted into Oklahoma State’s ring of honor in 2022. ==Personal life==