| TEAM | SEASON | RECORD | PERC | CNF STAND | CNF RECORD | CNF PERC |
| Illinois | 1892 | 7-4-1 | .625 | Independent | ||
| Illinois | 1893 | 3-2-3 | .563 | Independent | ||
| Illinois | 1894 | 4-3 | .571 | Independent | ||
| Illinois | 1895 | 4-2-1 | .643 | Independent | ||
| Illinois | 1896 | 4-2-1 | .643 | T6th Western | 0-2-1 | .167 |
| Illinois | 1897 | 6-2 | .750 | 4th Western | 1-1 | .500 |
| Illinois | 1898 | 4-5 | .444 | 4th Western | 1-1 | .500 |
| Illinois | 1899 | 3-5-1 | .389 | T6th Western | 0-3 | .000 |
| Illinois | 1900 | 7-3-2 | .667 | 8th Western | 1-3-2 | .333 |
| Illinois | 1901 | 8-2 | .800 | 4th Western | 4-2 | .667 |
| Illinois | 1902 | 10-2-1 | .808 | 4th Western | 4-2 | .667 |
| Illinois | 1903 | 8-6 | .571 | 7th Western | 1-5 | .167 |
| Illinois | 1904 | 9-2-1 | .792 | 4th Western | 3-1-1 | .700 |
| Illinois | 1905 | 5-4 | .556 | 9th Western | 0-3 | .000 |
| Illinois | 1906 | 1-3-1 | .300 | 5th Western | 1-3 | .250 |
| Illinois | 1907 | 3-2 | .600 | 4th Western | 3-2 | .600 |
| Illinois | 1908 | 5-1-1 | .786 | 2nd Western | 4-1 | .800 |
| Illinois | 1909 | 5-2 | .714 | 3rd Western | 3-1 | .750 |
| Illinois | 1910 | 7-0 | 1.000 | 1st Western | 4-0 | 1.000 |
| Illinois | 1911 | 4-2-1 | .643 | T4th Western | 2-2-1 | .500 |
| Illinois | 1912 | 3-3-1 | .500 | 6th Western | 1-3-1 | .300 |
| Illinois | 1913 | 4-2-1 | .643 | 5th Western | 2-2-1 | .500 |
| Illinois | 1914 | 7-0 | 1.000 | 1st Western | 6-0 | 1.000 |
| Illinois | 1915 | 5-0-2 | .857 | 2nd Western | 3-0-2 | .800 |
| Illinois | 1916 | 3-3-1 | .500 | 5th Western | 2-2-1 | .500 |
| Illinois | 1917 | 5-2-1 | .688 | T5th Western | 2-2-1 | .500 |
| Illinois | 1918 | 5-2 | .714 | 1st Western | 4-0 | 1.000 |
| Illinois | 1919 | 6-1 | .857 | 1st Western | 6-1 | .857 |
| Illinois | 1920 | 5-2 | .714 | 4th Western | 4-2 | .667 |
| Illinois | 1921 | 3-4 | .429 | T8th Western | 1-4 | .200 |
| Illinois | 1922 | 2-5 | .286 | 6th Western | 2-4 | .333 |
| Illinois | 1923 | 8-0 | 1.000 | 1st Western | 5-0 | 1.000 |
| Illinois | 1924 | 6-1-1 | .813 | T2nd Western | 3-1-1 | .700 |
| Illinois | 1925 | 5-3 | .625 | T4th Western | 2-2 | .500 |
| Illinois | 1926 | 6-2 | .750 | T6th Western | 2-2 | .500 |
| Illinois | 1927 | 7-0-1 | .938 | 1st Western | 5-0 | 1.000 |
| Illinois | 1928 | 7-1 | .875 | 1st Western | 4-1 | .800 |
| Illinois | 1929 | 6-1-1 | .813 | 2nd Western | 3-1-1 | .700 |
| Illinois | 1930 | 3-5 | .375 | 8th Western | 1-4 | .200 |
| Illinois | 1931 | 2-6 | .250 | 10th Western | 0-6 | .000 |
| Illinois | 1932 | 5-4 | .556 | 7th Western | 2-4 | .333 |
| Illinois | 1933 | 5-3 | .625 | T5th Western | 3-2 | .600 |
| Illinois | 1934 | 7-1 | .875 | 3rd Western | 4-1 | .800 |
| Illinois | 1935 | 3-5 | .375 | T9th Western | 1-4 | .200 |
| Illinois | 1936 | 4-3-1 | .563 | 6th Western | 2-2-1 | .500 |
| Illinois | 1937 | 3-3-2 | .500 | 8th Western | 2-3 | .400 |
| Illinois | 1938 | 3-5 | .375 | 7th Western | 2-3 | .400 |
| Illinois | 1939 | 3-4-1 | .438 | 6th Western | 3-3 | .500 |
| Illinois | 1940 | 1-7 | .125 | 9th Western | 0-5 | .000 |
| Illinois | 1941 | 2-6 | .250 | 9th Western | 0-5 | .000 |
| Illinois | 1942 | 6-4 | .600 | T3rd Western | 3-2 | .600 |
| Illinois | 1943 | 3-7 | .300 | 6th Western | 2-4 | .333 |
| Illinois | 1944 | 5-4-1 | .550 | 6th Western | 3-3 | .500 |
| Illinois | 1945 | 2-6-1 | .278 | 7th Western | 1-4-1 | .250 |
| Illinois | 1946 | 8-2 | .800 | 1st Western | 6-1 | .857 |
| Illinois | 1947 | 5-3-1 | .611 | T3rd Western | 3-3 | .500 |
| Illinois | 1948 | 3-6 | .333 | 8th Western | 2-5 | .286 |
| Illinois | 1949 | 3-4-2 | .444 | T5th Western | 3-3-1 | .500 |
| Illinois | 1950 | 7-2 | .778 | 4th Western | 4-2 | .667 |
| Illinois | 1951 | 9-0-1 | .950 | 1st Western | 5-0-1 | .917 |
| Illinois | 1952 | 4-5 | .444 | T6th Western | 2-5 | .286 |
| Illinois | 1953 | 7-1-1 | .833 | T1st Big10 | 5-1 | .833 |
| Illinois | 1954 | 1-8 | .111 | 10th Big10 | 0-6 | .000 |
| Illinois | 1955 | 5-3-1 | .611 | 5th Big10 | 3-3-1 | .500 |
| Illinois | 1956 | 2-5-2 | .333 | T7th Big10 | 1-4-2 | .286 |
| Illinois | 1957 | 4-5 | .444 | 7th Big10 | 3-4 | .429 |
| Illinois | 1958 | 4-5 | .444 | 6th Big10 | 4-3 | .571 |
| Illinois | 1959 | 5-3-1 | .611 | T3rd Big10 | 4-2-1 | .643 |
| Illinois | 1960 | 5-4 | .556 | T5th Big10 | 3-4 | .429 |
| Illinois | 1961 | 0-9 | .000 | T9th Big10 | 0-7 | .000 |
| Illinois | 1962 | 2-7 | .222 | 8th Big10 | 2-5 | .286 |
| Illinois | 1963 | 8-1-1 | .850 | 1st Big10 | 5-1-1 | .786 |
| Illinois | 1964 | 6-3 | .667 | T4th Big10 | 4-3 | .571 |
| Illinois | 1965 | 6-4 | .600 | 5th Big10 | 4-3 | .571 |
| Illinois | 1966 | 4-6 | .400 | T3rd Big10 | 4-3 | .571 |
| Illinois | 1967 | 4-6 | .400 | T5th Big10 | 3-4 | .429 |
| Illinois | 1968 | 1-9 | .100 | T8th Big10 | 1-6 | .143 |
| Illinois | 1969 | 0-10 | .000 | 10th Big10 | 0-7 | .000 |
| Illinois | 1970 | 3-7 | .300 | T9th Big10 | 1-6 | .143 |
| Illinois | 1971 | 5-6 | .455 | T3rd Big10 | 5-3 | .625 |
| Illinois | 1972 | 3-8 | .273 | T6th Big10 | 3-5 | .375 |
| Illinois | 1973 | 5-6 | .455 | T4th Big10 | 4-4 | .500 |
| Illinois | 1974 | 6-4-1 | .591 | 5th Big10 | 4-3-1 | .563 |
| Illinois | 1975 | 5-6 | .455 | T3rd Big10 | 4-4 | .500 |
| Illinois | 1976 | 5-6 | .455 | T3rd Big10 | 4-4 | .500 |
| Illinois | 1977 | 3-8 | .273 | 9th Big10 | 2-6 | .250 |
| Illinois | 1978 | 1-8-2 | .182 | 9th Big10 | 0-6-2 | .125 |
| Illinois | 1979 | 2-8-1 | .227 | 9th Big10 | 1-6-1 | .188 |
| Illinois | 1980 | 3-7-1 | .318 | T6th Big10 | 3-5 | .375 |
| Illinois | 1981 | 7-4 | .636 | T3rd Big10 | 6-3 | .667 |
| Illinois | 1982 | 7-5 | .583 | 4th Big10 | 6-3 | .667 |
| Illinois | 1983 | 10-2 | .833 | 1st Big10 | 9-0 | 1.000 |
| Illinois | 1984 | 7-4 | .636 | T2nd Big10 | 6-3 | .667 |
| Illinois | 1985 | 6-5-1 | .542 | 3rd Big10 | 5-2-1 | .688 |
| Illinois | 1986 | 4-7 | .364 | T6th Big10 | 3-5 | .375 |
| Illinois | 1987 | 3-7-1 | .318 | 8th Big10 | 2-5-1 | .313 |
| Illinois | 1988 | 6-5-1 | .542 | 3rd Big10 | 5-2-1 | .688 |
| Illinois | 1989 | 10-2 | .833 | 2nd Big10 | 7-1 | .875 |
| Illinois | 1990 | 8-4 | .667 | T1st Big10 | 6-2 | .750 |
| Illinois | 1991 | 6-6 | .500 | 5th Big10 | 4-4 | .500 |
| Illinois | 1992 | 6-5-1 | .542 | 4th Big10 | 4-3-1 | .563 |
| Illinois | 1993 | 5-6 | .455 | T4th Big10 | 5-3 | .625 |
| Illinois | 1994 | 7-5 | .583 | T5th Big10 | 4-4 | .500 |
| Illinois | 1995 | 5-5-1 | .500 | T7th Big10 | 3-4-1 | .438 |
| Illinois | 1996 | 2-9 | .182 | T9th Big10 | 1-7 | .125 |
| Illinois | 1997 | 0-11 | .000 | 11th Big10 | 0-8 | .000 |
| Illinois | 1998 | 3-8 | .273 | T7th Big10 | 2-6 | .250 |
| Illinois | 1999 | 8-4 | .667 | T6th Big10 | 4-4 | .500 |
| Illinois | 2000 | 5-6 | .455 | T9th Big10 | 2-6 | .250 |
| Illinois | 2001 | 10-2 | .833 | 1st Big10 | 7-1 | .875 |
| Illinois | 2002 | 5-7 | .417 | T5th Big10 | 4-4 | .500 |
| Illinois | 2003 | 1-11 | .083 | 11th Big10 | 0-8 | .000 |
| Illinois | 2004 | 3-8 | .273 | T10th Big10 | 1-7 | .125 |
| Illinois | 2005 | 2-9 | .182 | 11th Big10 | 0-8 | .000 |
| Illinois | 2006 | 2-10 | .167 | T10th Big10 | 1-7 | .125 |
| Illinois | 2007 | 9-4 | .692 | T2nd Big10 | 6-2 | .750 |
| Illinois | 2008 | 5-7 | .417 | T6th Big10 | 3-5 | .375 |
| Illinois | 2009 | 3-9 | .250 | 9th Big10 | 2-6 | .250 |
| Illinois | 2010 | 7-6 | .538 | T4th Big10 | 4-4 | .500 |
| Illinois | 2011 | 7-6 | .538 | 5th Big10 Leaders | 2-6 | .250 |
| Illinois | 2012 | 2-10 | .167 | 6th Big10 Leaders | 0-8 | .000 |
| Illinois | 2013 | 4-8 | .333 | 5th Big10 Leaders | 1-7 | .125 |
| Illinois | 2014 | 6-7 | .462 | 5th B10 West | 3-5 | .375 |
| Illinois | 2015 | 5-7 | .417 | T5th Big10 West | 2-6 | .250 |
| Illinois | 2016 | 3-9 | .250 | 6th Big10 West | 2-7 | .222 |
| Illinois | 2017 | 2-10 | .167 | 7th Big10 West | 0-9 | .000 |
| Illinois | 2018 | 4-8 | .333 | 7th Big10 West | 2-7 | .222 |
| Illinois | 2019 | 6-7 | .462 | 4th Big10 West | 4-5 | .444 |
| Illinois | 2020 | 2-6 | .250 | 7th Big10 West | 2-6 | .250 |
| Illinois | 2021 | 5-7 | .417 | 5th Big10 West | 4-5 | .444 |
| Illinois | 2022 | 8-5 | .615 | T2nd Big10 West | 5-4 | .556 |
| Illinois | 2023 | 5-7 | .417 | T5th Big10 West | 3-6 | .333 |
| Illinois | 2024 | 10-3 | .769 | 5th Big 10 | 6-3 | .667 |
| Illinois | 2025 | 9-4 | .692 | T7th Big 10 | 5-4 | .556 |