The Litkenhous Difference by Score Ratings system was a mathematical system used to rank football and basketball teams.[1][2] The Litrating system was developed by Vanderbilt University professor Edward E. Litkenhous (1907 – December 22, 1984)[2] and his brother, Francis H. Litkenhous (December 9, 1912 – June 22, 1996).[1][3]
The National Collegiate Athletic Association (NCAA) football records book includes the Litkenhous Ratings as a "major selector" of college football national championships for the seasons 1934 through 1984.[3]
The criteria for being included in this historical list of poll selectors is that the poll be national in scope, either through distribution in newspaper, television, radio and/or computer online. The list includes both former selectors, who were instrumental in the sport of college football, and selectors who were among the Bowl Championship Series (BCS) selectors.