The Hawkeyes reclaimed the Cy-Hawk Trophy in 2015. The Hawkeyes lead the overall series 42-22.

1894 -- Iowa State 16, Iowa 8, in Iowa City

1895 -- Iowa State 24, Iowa 0, in Iowa City

1897 -- Iowa State 12, Iowa 0, in Iowa City

1899 -- Iowa 5, Iowa State 0, in Iowa City

1901 -- Iowa 6, Iowa State 0, in Iowa City

1902 -- Iowa 16, Iowa State 12, in Iowa City

1904 -- Iowa 10, Iowa State 6, in Iowa City

1905 -- Iowa 8, Iowa State 0, in Ames

1906 -- Iowa State 2, Iowa 0, in Iowa City

1907 -- Iowa State 20, Iowa 14, in Ames

1909 -- Iowa 13, Iowa State 0, in Iowa City

1910 -- Iowa 2, Iowa State 0, in Ames

1911 -- Iowa State 9, Iowa 0, in Iowa City

1912 -- Iowa 20, Iowa State 7, in Ames

1913 -- Iowa 45, Iowa State 7, in Iowa City

1914 -- Iowa 26, Iowa State 6, in Ames

1915 -- Iowa State 16, Iowa 0, in Iowa City

1916 -- Iowa 19, Iowa State 16, in Ames

1917 -- Iowa 6, Iowa State 3, in Iowa City

1918 -- Iowa 21, Iowa State 0, in Iowa City

1919 -- Iowa 10, Iowa State 0, in Iowa City

1920 -- Iowa 14, Iowa State 10, in Ames

1933 -- Iowa 27, Iowa State 7, in Iowa City

1934 -- Iowa State 31, Iowa 6, in Ames

1977 -- Iowa 12, Iowa State 10, in Iowa City

1978 -- Iowa State 31, Iowa 0, in Iowa City

1979 -- Iowa 30, Iowa State 14, in Iowa City

1980 -- Iowa State 10, Iowa 7, in Iowa City

1981 -- Iowa State 23, Iowa 12, in Ames

1982 -- Iowa State 19, Iowa 7, in Iowa City

1983 -- Iowa 51, Iowa State 10, in Ames

1984 -- Iowa 59, Iowa State 21, in Iowa City

1985 -- Iowa 57, Iowa State 7, in Ames

1986 -- Iowa 43, Iowa State 7, in Iowa City

1987 -- Iowa 48, Iowa State 9, in Ames

1988 -- Iowa 10, Iowa State 3, in Iowa City

1989 -- Iowa 31, Iowa State 21, in Ames

1990 -- Iowa 45, Iowa State 35, in Iowa City

1991 -- Iowa 29, Iowa State 10, in Ames

1992 -- Iowa 21, Iowa State 7, in Iowa City

1993 -- Iowa 31, Iowa State 28, in Ames

1994 -- Iowa 37, Iowa State 9, in Iowa City

1995 -- Iowa 27, Iowa State 10, in Ames

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1996 -- Iowa 38, Iowa State 13, in Iowa City

1997 -- Iowa 63, Iowa State 20, in Ames

1998 -- Iowa State 27, Iowa 9, in Iowa City

1999 -- Iowa State 17, Iowa 10, in Ames

2000 -- Iowa State 24, Iowa 14, in Iowa City

2001 -- Iowa State 17, Iowa 14, in Ames

2002 -- Iowa State 36, Iowa 31, in Iowa City

2003 -- Iowa 40, Iowa State 21, in Ames

2004 -- Iowa 17, Iowa State 10, in Iowa City

2005 -- Iowa State 23, Iowa 3, in Ames

2006 -- Iowa 27, Iowa State 17, in Iowa City

2007 -- Iowa State 15, Iowa 13, in Ames

2008 -- Iowa 17, Iowa State 5, in Iowa City

2009 -- Iowa 35, Iowa State 3, in Ames

2010 -- Iowa 35, Iowa State 7, in Iowa City

2011 -- Iowa State 44, Iowa 41, in Ames

2012 -- Iowa State 9, Iowa 6, in Iowa City

2013 -- Iowa 27, Iowa State 21, in Ames

2014 -- Iowa State 20, Iowa 17, in Iowa City

2015 -- Iowa 31, Iowa State 17, in Ames

2016 -- Iowa 42, Iowa State 3, in Iowa City