Zuppke is the leader in seasons coached, with 29 years as head coach, games coached with 224, and games won with 131. Robert Lackey has the highest winning percentage of those who have coached more than one game at 0.833. Jim Valek has the lowest winning percentage of those who have coached more than one game, with 0.200. Of the 27 different head coaches who have led Illinois, Edward K. Hall, George Washington Woodruff, Zuppke, Elliott, and Bob Blackman have been inducted into the College Football Hall of Fame.
List of head football coaches showing season(s) coached, overall records, conference records, postseason records, championships and selected awards[A 5]
^Although the first Rose Bowl Game was played in 1902, it has been continuously played since the 1916 game, and is recognized as the oldest bowl game by the NCAA. "—" indicates any season prior to 1916 when postseason games were not played.[2]
^A running total of the number of head coaches, with coaches who served separate tenures being counted only once. Interim head coaches are represented with "Int" and are not counted in the running total. "—" indicates the team played but either without a coach or no coach is on record. "X" indicates an interim year without play.
^Overtime rules in college football were introduced in 1996, making ties impossible in the period since.[3]
^When computing the win–loss percentage, a tie counts as half a win and half a loss.[4]
^Divisional champions have advanced to the Big Ten Football Championship Game since the institution of divisional play beginning in the 2011 season. Since that time, Illinois has competed as a member of the West Division.
^Mathews shared the title of "head coach" with Hall, Lindgren, and Lowenthal for the 1904 season.
^Lowenthal shared the title of "head coach" with Hall, Lindgren, and Mathews for the 1904 season.
^Lindgren shared the title of "head coach" with Hall, Lowenthal, and Mathews for the 1904 season.
^Hall shared the title of "head coach" with Lindgren, Lowenthal, and Mathews for the 1904 season.
^National Collegiate Athletic Association (NCAA) (2011). Bowl/All-Star Game Records(PDF). Indianapolis, Indiana: NCAA. pp. 5–10. Archived(PDF) from the original on October 5, 2011. Retrieved August 21, 2011.
^Finder, Chuck (September 6, 1987). "Big plays help Paterno to 200th". The New York Times. New York City. Archived from the original on September 28, 2013. Retrieved October 22, 2009.