Iowa lost the Heartland Trophy in 2016. Wisconsin leads the overall series 45-43-2 and the trophy series 6-5.

2004 -- Iowa 30, Wisconsin 7, in Iowa City

2005 -- Iowa 20, Wisconsin 10, in Madison

2006 -- Wisconsin 24, Iowa 21, in Iowa City

2007 -- Wisconsin 17, Iowa 13, in Madison

2008 -- Iowa 38, Wisconsin 16, in Iowa City

2009 -- Iowa 20, Wisconsin 10, in Madison

2010 -- Wisconsin 31, Iowa 30, in Iowa City

2013 -- Wisconsin 28, Iowa 9, in Iowa City

2014 -- Wisconsin 26, Iowa 24, in Iowa City

2015 -- Iowa 10, Wisconsin 6, in Madison

2016 -- Wisconsin 17, Iowa 9, in Iowa City 

Before the trophy

1894 -- Wisconsin 44, Iowa 0, in Madison

1906 -- Wisconsin 18, Iowa 4, in Madison

1907 -- Wisconsin 6, Iowa 5, in Iowa City

1911 -- Wisconsin 12, Iowa 0, in Madison

1912 -- Wisconsin 28, Iowa 10, in Iowa City

1917 -- Wisconsin 20, Iowa 0, in Madison

1924 -- Iowa 21, Wisconsin 7, in Madison

1925 -- Wisconsin 6, Iowa 0, in Iowa City

1926 -- Wisconsin 20, Iowa 10, in Madison

1927 -- Iowa 16, Wisconsin 0, in Madison

1928 -- Wisconsin 13, Iowa 0, in Iowa City

1929 -- Iowa 14, Wisconsin 0, in Madison

1932 -- Wisconsin 34, Iowa 0, in Madison

1933 -- Iowa 26, Wisconsin 7, in Iowa City

1937 -- Wisconsin 13, Iowa 6, in Madison

1938 -- Wisconsin 31, Iowa 13, in Iowa City

1939 -- Iowa 19, Wisconsin 13, in Madison

1940 -- Iowa 30, Wisconsin 12, in Iowa City

1941 -- Wisconsin 23, Iowa 0, in Madison

1942 -- Iowa 6, Wisconsin 0, in Iowa City

1943 -- Wisconsin 7, Iowa 5, in Iowa City

1944 -- Wisconsin 26, Iowa 7, in Madison

1945 -- Wisconsin 27, Iowa 7, in Iowa City

1946 -- Iowa 21, Wisconsin 7, in Madison

1947 -- Wisconsin 46, Iowa 14, in Madison

1948 -- Iowa 19, Wisconsin 13, in Iowa City

1949 -- Wisconsin 35, Iowa 13, in Madison

1950 -- Wisconsin 14, Iowa 0, in Iowa City

1951 -- Wisconsin 34, Iowa 7, in Madison

1952 -- Wisconsin 42, Iowa 13, in Iowa City

1953 -- Wisconsin 10, Iowa 6, in Madison

1954 -- Iowa 13, Wisconsin 7, in Iowa City

1955 -- Wisconsin 37, Iowa 14, in Madison

1956 -- Iowa 13, Wisconsin 7, in Iowa City

1957 -- Iowa 21, Wisconsin 7, in Iowa City

1958 -- Iowa 20, Wisconsin 9, in Madison

1959 -- Wisconsin 25, Iowa 16, in Madison

1960 -- Iowa 28, Wisconsin 21, in Iowa City

1961 -- Iowa 47, Wisconsin 15, in Iowa City

1962 -- Wisconsin 42, Iowa 14, in Madison

1963 -- Wisconsin 10, Iowa 7, in Iowa City

1964 -- Wisconsin 31, Iowa 21, in Madison

1965 -- Wisconsin 16, Iowa 13, in Madison

1966 -- Wisconsin 7, Iowa 0, in Iowa City

1967 -- Tie 21-21, in Madison

1968 -- Iowa 41, Wisconsin 0, in Iowa City

1969 -- Wisconsin 23, Iowa 17, in Madison

1970 -- Iowa 24, Wisconsin 14, in Iowa City

1971 -- Iowa 20, Wisconsin 16, in Iowa City

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1972 -- Wisconsin 16, Iowa 14, in Madison

1973 -- Wisconsin 35, Iowa 7, in Madison

1974 -- Wisconsin 28, Iowa 15, in Iowa City

1975 -- Iowa 45, Wisconsin 28, in Iowa City

1976 -- Wisconsin 38, Iowa 21, in Madison

1977 -- Iowa 24, Wisconsin 8, in Madison

1978 -- Iowa 38, Wisconsin 24, in Iowa City

1979 -- Iowa 24, Wisconsin 13, in Madison

1980 -- Iowa 22, Wisconsin 13, in Iowa City

1981 -- Iowa 17, Wisconsin 7, in Madison

1982 -- Iowa 28, Wisconsin 14, in Iowa City

1983 -- Iowa 34, Wisconsin 14, in Madison

1984 -- Tie 10-10, in Iowa City

1985 -- Iowa 23, Wisconsin 13, in Madison

1986 -- Iowa 17, Wisconsin 6, in Iowa City

1987 -- Iowa 31, Wisconsin 10, in Madison

1988 -- Iowa 31, Wisconsin 6, in Iowa City

1989 -- Iowa 31, Wisconsin 24, in Madison

1990 -- Iowa 30, Wisconsin 10, in Iowa City

1991 -- Iowa 10, Wisconsin 6, in Madison

1992 -- Iowa 23, Wisconsin 22, in Iowa City

1995 -- Iowa 33, Wisconsin 20, in Madison

1996 -- Iowa 31, Wisconsin 0, in Iowa City

1997 -- Wisconsin 13, Iowa 10, in Madison

1998 -- Wisconsin 31, Iowa 0, in Iowa City

1999 -- Wisconsin 41, Iowa 3, in Madison

2000 -- Wisconsin 13, Iowa 7, in Iowa City

2001 -- Wisconsin 34, Iowa 28, in Madison

2002 -- Iowa 20, Wisconsin 3, in Iowa City

2003 -- Iowa 27, Wisconsin 21, in Madison