| 2025 | Oct 18, 2025 | Northwestern 19, Purdue 0 | Lanny and Sharon Martin Stadium · Evanston, IL |
| 2024 | Nov 2, 2024 | Northwestern 26, Purdue 20 (OT) (OT) | Ross-Ade Stadium · West Lafayette, IN |
| 2023 | Nov 18, 2023 | Northwestern 23, Purdue 15 | Ryan Field · Evanston, IL |
| 2022 | Nov 19, 2022 | Purdue 17, Northwestern 9 | Ross-Ade Stadium · West Lafayette, IN |
| 2021 | Nov 20, 2021 | Purdue 32, Northwestern 14 | Wrigley Field · Chicago, IL · Neutral |
| 2020 | Nov 14, 2020 | Northwestern 27, Purdue 20 | Ross-Ade Stadium · West Lafayette, IN |
| 2019 | Nov 9, 2019 | Purdue 24, Northwestern 22 | Ryan Field · Evanston, IL |
| 2018 | Aug 30, 2018 | Northwestern 31, Purdue 27 | Ross-Ade Stadium · West Lafayette, IN |
| 2017 | Nov 11, 2017 | Northwestern 23, Purdue 13 | Ryan Field · Evanston, IL |
| 2016 | Nov 12, 2016 | Northwestern 45, Purdue 17 | Ross-Ade Stadium · West Lafayette, IN |
| 2015 | Nov 14, 2015 | Northwestern 21, Purdue 14 | Ryan Field · Evanston, IL |
| 2014 | Nov 22, 2014 | Northwestern 38, Purdue 14 | Ross-Ade Stadium · West Lafayette, IN |
| 2010 | Oct 9, 2010 | Purdue 20, Northwestern 17 | Ryan Field · Evanston, IL |
| 2009 | Oct 3, 2009 | Northwestern 27, Purdue 21 | Ross-Ade Stadium · West Lafayette, IN |
| 2008 | Oct 18, 2008 | Northwestern 48, Purdue 26 | Ryan Field · Evanston, IL |
| 2007 | Oct 27, 2007 | Purdue 35, Northwestern 17 | Ross-Ade Stadium · West Lafayette, IN |
| 2006 | Oct 14, 2006 | Purdue 31, Northwestern 10 | Ryan Field · Evanston, IL |
| 2005 | Oct 15, 2005 | Northwestern 34, Purdue 29 | Ross-Ade Stadium · West Lafayette, IN |
| 2004 | Oct 30, 2004 | Northwestern 13, Purdue 10 | Ryan Field · Evanston, IL |
| 2003 | Nov 1, 2003 | Purdue 34, Northwestern 14 | Ross-Ade Stadium · West Lafayette, IN |
| 2002 | Oct 26, 2002 | Purdue 42, Northwestern 13 | Ryan Field · Evanston, IL |
| 2001 | Oct 27, 2001 | Purdue 32, Northwestern 27 | Ross-Ade Stadium · West Lafayette, IN |
| 2000 | Oct 14, 2000 | Purdue 41, Northwestern 28 | – |
| 1999 | Sep 25, 1999 | Purdue 31, Northwestern 23 | – |
| 1998 | Nov 7, 1998 | Purdue 56, Northwestern 21 | – |
| 1997 | Sep 27, 1997 | Purdue 21, Northwestern 9 | – |
| 1996 | Nov 16, 1996 | Northwestern 27, Purdue 24 | – |
| 1995 | Nov 18, 1995 | Northwestern 23, Purdue 8 | – |
| 1992 | Oct 3, 1992 | Northwestern 28, Purdue 14 | – |
| 1991 | Oct 5, 1991 | Purdue 17, Northwestern 14 | – |
| 1990 | Nov 10, 1990 | Purdue 33, Northwestern 13 | – |
| 1989 | Nov 11, 1989 | Purdue 46, Northwestern 15 | – |
| 1988 | Nov 12, 1988 | Northwestern 28, Purdue 7 | – |
| 1987 | Nov 14, 1987 | Purdue 20, Northwestern 15 | – |
| 1986 | Nov 1, 1986 | Purdue 17, Northwestern 16 | – |
| 1985 | Nov 2, 1985 | Purdue 31, Northwestern 7 | – |
| 1984 | Oct 27, 1984 | Purdue 49, Northwestern 7 | – |
| 1983 | Oct 29, 1983 | Purdue 48, Northwestern 17 | – |
| 1982 | Oct 16, 1982 | Purdue 34, Northwestern 21 | – |
| 1981 | Oct 17, 1981 | Purdue 35, Northwestern 0 | – |
| 1980 | Nov 1, 1980 | Purdue 52, Northwestern 31 | – |
| 1979 | Oct 27, 1979 | Purdue 20, Northwestern 16 | – |
| 1978 | Nov 4, 1978 | Purdue 31, Northwestern 0 | – |
| 1977 | Oct 29, 1977 | Purdue 28, Northwestern 16 | – |
| 1976 | Sep 11, 1976 | Purdue 31, Northwestern 19 | – |
| 1975 | Sep 13, 1975 | Northwestern 31, Purdue 25 | – |
| 1974 | Oct 19, 1974 | Purdue 31, Northwestern 26 | – |
| 1973 | Oct 20, 1973 | Purdue 21, Northwestern 10 | – |
| 1972 | Oct 21, 1972 | Purdue 37, Northwestern 0 | – |
| 1971 | Oct 16, 1971 | Purdue 21, Northwestern 20 | – |
| 1970 | Oct 24, 1970 | Northwestern 38, Purdue 14 | – |
| 1969 | Oct 25, 1969 | Purdue 45, Northwestern 20 | – |
| 1968 | Oct 5, 1968 | Purdue 43, Northwestern 6 | – |
| 1967 | Oct 7, 1967 | Purdue 25, Northwestern 16 | – |
| 1958 | Nov 15, 1958 | Purdue 23, Northwestern 6 | – |
| 1957 | Nov 16, 1957 | Purdue 27, Northwestern 0 | – |
| 1956 | Nov 17, 1956 | Northwestern 14, Purdue 0 | – |
| 1955 | Nov 12, 1955 | Purdue 46, Northwestern 8 | – |
| 1951 | Nov 10, 1951 | Purdue 35, Northwestern 14 | – |
| 1950 | Nov 11, 1950 | Northwestern 19, Purdue 14 | – |
| 1949 | Sep 24, 1949 | Northwestern 20, Purdue 6 | – |
| 1948 | Oct 2, 1948 | Northwestern 21, Purdue 0 | – |
| 1945 | Oct 27, 1945 | Northwestern 26, Purdue 14 | – |
| 1944 | Nov 11, 1944 | Purdue 27, Northwestern 7 | – |
| 1942 | Oct 10, 1942 | Purdue 7, Northwestern 6 | – |
| 1939 | Nov 11, 1939 | Purdue 3, Northwestern 0 | – |
| 1937 | Oct 16, 1937 | Northwestern 14, Purdue 7 | – |
| 1935 | Oct 5, 1935 | Purdue 7, Northwestern 0 | – |
| 1932 | Oct 22, 1932 | Purdue 7, Northwestern 7 | – |
| 1931 | Nov 28, 1931 | Purdue 7, Northwestern 0 | – |
| 1928 | Nov 10, 1928 | Northwestern 7, Purdue 6 | – |
| 1927 | Nov 5, 1927 | Purdue 18, Northwestern 6 | – |
| 1926 | Nov 6, 1926 | Northwestern 22, Purdue 0 | – |
| 1925 | Nov 14, 1925 | Northwestern 13, Purdue 9 | – |
| 1924 | Oct 18, 1924 | Purdue 7, Northwestern 3 | – |
| 1923 | Nov 17, 1923 | Purdue 6, Northwestern 3 | – |
| 1922 | Nov 11, 1922 | Northwestern 24, Purdue 13 | – |
| 1921 | Nov 5, 1921 | Purdue 3, Northwestern 0 | – |
| 1920 | Nov 13, 1920 | Northwestern 14, Purdue 0 | – |
| 1917 | Nov 3, 1917 | Northwestern 12, Purdue 6 | – |
| 1916 | Nov 18, 1916 | Northwestern 38, Purdue 6 | – |
| 1914 | Nov 14, 1914 | Purdue 34, Northwestern 6 | – |
| 1913 | Oct 11, 1913 | Purdue 34, Northwestern 0 | – |
| 1912 | Nov 2, 1912 | Purdue 21, Northwestern 6 | – |
| 1909 | Oct 9, 1909 | Northwestern 14, Purdue 5 | – |
| 1908 | Nov 7, 1908 | Purdue 16, Northwestern 10 | – |
| 1902 | Nov 1, 1902 | Purdue 5, Northwestern 0 | – |
| 1901 | Nov 28, 1901 | Northwestern 10, Purdue 5 | – |
| 1899 | Nov 25, 1899 | Northwestern 29, Purdue 0 | – |
| 1895 | Nov 2, 1895 | Northwestern 24, Purdue 6 | – |