Nov 11, 2020
| YEAR | CHAMPIONSHIP |
| 1893 | MIAA Regular Season |
| 1898 | State of Michigan |
| 1914 | MIAA co-champions |
| 1924 | MIAA Regular Season |
| 1931 | MIAA Regular Season |
| 1932 | MIAA Regular Season |
| 1933 | MIAA Regular Season |
| 1938 | MIAA Regular Season |
| 1946 | MIAA co-champions |
| 1947 | MIAA Regular Season |
| 1949 | MIAA Regular Season |
| 1954 | MIAA Regular Season |
| 1955 | MIAA Regular Season* |
| 1956 | MIAA Regular Season* |
| 1957 | MIAA Regular Season* |
| 1958 | MIAA Regular Season |
| 1959 | MIAA Regular Season |
| 1960 | MIAA Regular Season |
| 1980 | GLIAC Champions |
| 1981 | GLIAC Champions |
| 1982 | GLIAC Champions* |
| 1982 | NAIA Semifinals |
| 1985 | GLIAC Champions |
| 1985 | NAIA National Champions# |
| 1986 | NAIA Playoffs |
| 1988 | NAIA Playoffs |
| 1988 | GLIAC Champions |
| 1992 | GLIAC Champions |
| 2009 | NCAA Division II Playoffs |
| 2010 | NCAA Division II Playoffs |
| 2010 | GLIAC South Division co-Champions^ |
| 2011 | GLIAC Champions |
| 2012 | GLIAC North Division co-Champions@ |
| 2018 | G-MAC Champions |
* - undefeated regular season
# - tied Central Oklahoma 10-10 in championship game
^ - shared division title with Wayne State
@ - shared division title with Michigan Tech, Grand Valley State and Saginaw Valley State