The 1905 college football season had the Chicago Maroons retroactively named as national champion by the Billingsley Report, the Helms Athletic Foundation, the National Championship Foundation, and the Houlgate System, while Yale was named champion by Parke H. Davis and Caspar Whitney. Chicago finished the season 11–0, while Yale finished 10–0. The Official NCAA Division I Football Records Book listed both Chicago and Yale as having been selected national champions.

Amos Alonzo Stagg was an American athlete and college coach in multiple sports, primarily American football. He served as the head football coach at the International YMCA Training School (1890–1891), the University of Chicago (1892–1932), and the College of the Pacific (1933–1946), compiling a career college football record of 314–199–35 (.605). His undefeated Chicago Maroons teams of 1905 and 1913 were recognized as national champions. He was also the head basketball coach for one season at Chicago (1920–1921), and the Maroons' head baseball coach for twenty seasons.