The Iowa–Iowa State rivalry is an American college rivalry between the Iowa Hawkeyes sports teams of the University of Iowa and the Iowa State Cyclones sports teams of Iowa State University. The two universities currently compete with each other in the Iowa Corn Cy-Hawk Series, which awards points for athletic victories over the other university. The two schools also compete for the Cy-Hawk Trophy, which is annually awarded to the winner of the football game between the two schools.
Iowa and Iowa State rank as the top two universities in Iowa in terms of enrollment. As of the fall 2011 semester, the University of Iowa, located in Iowa City, had 21,565 undergraduate students enrolled,[1] while Iowa State University, located in Ames, had 24,343 undergraduates enrolled.[2] The two schools compete in a wide range of sports, including wrestling, golf, volleyball, soccer, cross country, swimming, gymnastics, and softball, among major sports such as football and basketball.[3]
Iowa victories are shaded ██ black. Iowa State victories shaded in ██ red.
| Date | Site | Winning team | Losing team | Series | ||
|---|---|---|---|---|---|---|
| October 1, 1894 | Iowa City | Iowa State | 16 | Iowa | 8 | ISU 1-0 |
| October 28, 1895 | Iowa City | Iowa State | 24 | Iowa | 0 | ISU 2-0 |
| November 5, 1897 | Iowa City | Iowa State | 12 | Iowa | 0 | ISU 3-0 |
| October 28, 1899 | Iowa City | Iowa | 5 | Iowa State | 0 | ISU 3-1 |
| October 18, 1901 | Iowa City | Iowa | 6 | Iowa State | 0 | ISU 3-2 |
| November 1, 1902 | Iowa City | Iowa | 16 | Iowa State | 12 | Tied 3-3 |
| October 29, 1904 | Iowa City | Iowa | 10 | Iowa State | 6 | UI 4-3 |
| November 24, 1905 | Ames | Iowa | 8 | Iowa State | 0 | UI 5-3 |
| November 24, 1906 | Iowa City | Iowa State | 2 | Iowa | 0 | UI 5-4 |
| November 23, 1907 | Ames | Iowa State | 20 | Iowa | 14 | Tied 5-5 |
| November 13, 1909 | Iowa City | Iowa | 13 | Iowa State | 0 | UI 6-5 |
| November 5, 1910 | Ames | Iowa | 2 | Iowa State | 0 | UI 7-5 |
| November 18, 1911 | Iowa City | Iowa State | 9 | Iowa | 0 | UI 7-6 |
| November 16, 1912 | Ames | Iowa | 20 | Iowa State | 7 | UI 8-6 |
| November 15, 1913 | Iowa City | Iowa | 45 | Iowa State | 7 | UI 9-6 |
| November 14, 1914 | Ames | Iowa | 26 | Iowa State | 6 | UI 10-6 |
| November 13, 1915 | Iowa City | Iowa State | 16 | Iowa | 0 | UI 10-7 |
| November 18, 1916 | Ames | Iowa | 19 | Iowa State | 16 | UI 11-7 |
| November 24, 1917 | Iowa City | Iowa | 6 | Iowa State | 3 | UI 12-7 |
| November 16, 1918 | Iowa City | Iowa | 21 | Iowa State | 0 | UI 13-7 |
| November 22, 1919 | Iowa City | Iowa | 10 | Iowa State | 0 | UI 14-7 |
| November 20, 1920 | Ames | Iowa | 14 | Iowa State | 10 | UI 15-7 |
| November 4, 1933 | Iowa City | Iowa | 27 | Iowa State | 7 | UI 16-7 |
| November 20, 1934 | Ames | Iowa State | 31 | Iowa | 6 | UI 16-8 |
| September 17, 1977 | Iowa City | Iowa | 12 | Iowa State | 10 | UI 17-8 |
| September 23, 1978 | Iowa City | (20) Iowa State | 31 | Iowa | 0 | UI 17-9 |
| September 29, 1979 | Iowa City | Iowa | 30 | Iowa State | 14 | UI 18-9 |
| September 27, 1980 | Iowa City | Iowa State | 10 | Iowa | 7 | UI 18-10 |
| September 19, 1981 | Ames | Iowa State | 23 | Iowa | 12 | UI 18-11 |
| September 18, 1982 | Iowa City | Iowa State | 19 | Iowa | 7 | UI 18-12 |
| September 10, 1983 | Ames | (10) Iowa | 51 | Iowa State | 10 | UI 19-12 |
| September 8, 1984 | Iowa City | (10) Iowa | 59 | Iowa State | 21 | UI 20-12 |
| September 28, 1985 | Ames | (3) Iowa | 57 | Iowa State | 7 | UI 21-12 |
| September 13, 1986 | Iowa City | Iowa | 43 | Iowa State | 7 | UI 22-12 |
| September 19, 1987 | Ames | Iowa | 48 | Iowa State | 9 | UI 23-12 |
| September 24, 1988 | Iowa City | Iowa | 10 | Iowa State | 3 | UI 24-12 |
| September 23, 1989 | Ames | Iowa | 31 | Iowa State | 21 | UI 25-12 |
| September 22, 1990 | Iowa City | Iowa | 45 | Iowa State | 35 | UI 26-12 |
| September 14, 1991 | Ames | (14) Iowa | 29 | Iowa State | 10 | UI 27-12 |
| September 12, 1992 | Iowa City | Iowa | 21 | Iowa State | 7 | UI 28-12 |
| September 11, 1993 | Ames | Iowa | 31 | Iowa State | 28 | UI 29-12 |
| September 10, 1994 | Iowa City | Iowa | 37 | Iowa State | 9 | UI 30-12 |
| September 16, 1995 | Ames | Iowa | 27 | Iowa State | 10 | UI 31-12 |
| September 14, 1996 | Iowa City | (21) Iowa | 38 | Iowa State | 13 | UI 32-12 |
| September 20, 1997 | Ames | (13) Iowa | 63 | Iowa State | 20 | UI 33-12 |
| September 12, 1998 | Iowa City | Iowa State | 27 | Iowa | 9 | UI 33-13 |
| September 11, 1999 | Ames | Iowa State | 17 | Iowa | 10 | UI 33-14 |
| September 16, 2000 | Iowa City | Iowa State | 24 | Iowa | 14 | UI 33-15 |
| November 24, 2001 | Ames | Iowa State | 17 | Iowa | 14 | UI 33-16 |
| September 14, 2002 | Iowa City | Iowa State | 36 | Iowa | 31 | UI 33-17 |
| September 13, 2003 | Ames | (23) Iowa | 40 | Iowa State | 21 | UI 34-17 |
| September 11, 2004 | Iowa City | (16) Iowa | 17 | Iowa State | 10 | UI 35-17 |
| September 10, 2005 | Ames | Iowa State | 23 | (8) Iowa | 3 | UI 35-18 |
| September 16, 2006 | Iowa City | (16) Iowa | 27 | Iowa State | 17 | UI 36-18 |
| September 15, 2007 | Ames | Iowa State | 15 | Iowa | 13 | UI 36-19 |
| September 13, 2008 | Iowa City | Iowa | 17 | Iowa State | 5 | UI 37-19 |
| September 12, 2009 | Ames | Iowa | 35 | Iowa State | 3 | UI 38-19 |
| September 11, 2010 | Iowa City | (9) Iowa | 35 | Iowa State | 7 | UI 39-19 |
| September 10, 2011 | Ames | Iowa State | 44 | Iowa | 41 | UI 39-20 |
| September 8, 2012 | Iowa City | |||||
| September 14, 2013 | Ames | |||||
| September 13, 2014 | Iowa City | |||||
| September 12, 2015 | Ames | |||||
| September 10, 2016 | Iowa City | |||||
| September 9, 2017 | Ames | |||||
| September 8, 2018 | Iowa City | |||||
| September 14, 2019 | Ames | |||||
| September 12, 2020 | Iowa City | |||||
All Time Record: Iowa Leads 39-20
Last 15 Meetings: Iowa State Leads 8-7
Iowa victories are shaded ██ black. Iowa State victories shaded in ██ red.
| Date | Site | Winning team | Losing team | Series | ||
|---|---|---|---|---|---|---|
| February 5, 1909 | Ames | Iowa | 30 | Iowa State | 27 | UI 1-0 |
| February 26, 1910 | Iowa City | Iowa | 24 | Iowa State | 12 | UI 2-0 |
| February 8, 1913 | Iowa City | Iowa | 27 | Iowa State | 15 | UI 3-0 |
| February 25, 1913 | Ames | Iowa | 21 | Iowa State | 13 | UI 4-0 |
| January 31, 1914 | Iowa City | Iowa | 22 | Iowa State | 15 | UI 5-0 |
| February 24, 1914 | Ames | Iowa | 21 | Iowa State | 16 | UI 6-0 |
| February 16, 1915 | Iowa City | Iowa | 27 | Iowa State | 12 | UI 7-0 |
| March 4, 1915 | Ames | Iowa | 23 | Iowa State | 18 | UI 8-0 |
| February 19, 1916 | Iowa City | Iowa | 26 | Iowa State | 9 | UI 9-0 |
| March 4, 1916 | Ames | Iowa | 22 | Iowa State | 14 | UI 10-0 |
| February 16, 1917 | Ames | Iowa State | 24 | Iowa | 12 | UI 10-1 |
| February 27, 1917 | Iowa City | Iowa | 15 | Iowa State | 13 | UI 11-1 |
| February 9, 1918 | Iowa City | Iowa | 24 | Iowa State | 9 | UI 12-1 |
| March 1, 1918 | Ames | Iowa | 22 | Iowa State | 20 | UI 13-1 |
| February 15, 1919 | Iowa City | Iowa | 27 | Iowa State | 17 | UI 14-1 |
| March 1, 1919 | Ames | Iowa | 29 | Iowa State | 20 | UI 15-1 |
| January 23, 1920 | Iowa City | Iowa | 27 | Iowa State | 15 | UI 16-1 |
| March 6, 1920 | Ames | Iowa | 26 | Iowa State | 19 | UI 16-1 |
| February 15, 1921 | Iowa City | Iowa State | 20 | Iowa | 16 | UI 16-2 |
| March 11, 1921 | Ames | Iowa State | 26 | Iowa | 18 | UI 16-3 |
| December 11, 1933 | Iowa City | Iowa | 30 | Iowa State | 12 | UI 17-3 |
| January 1, 1935 | Ames | Iowa State | 41 | Iowa | 33 | UI 17-4 |
| January 23, 1970 | Iowa City | Iowa | 87 | Iowa State | 68 | UI 18-4 |
| December 18, 1971 | Ames | Iowa State | 97 | Iowa | 94 | UI 18-5 |
| January 2, 1973 | Iowa City | Iowa | 66 | Iowa State | 57 | UI 19-5 |
| January 7, 1974 | Ames | Iowa State | 94 | Iowa | 77 | UI 19-6 |
| December 12, 1974 | Iowa City | Iowa | 77 | Iowa State | 66 | UI 20-6 |
| December 12, 1975 | Ames | Iowa | 91 | Iowa State | 77 | UI 21-6 |
| December 18, 1976 | Iowa City | Iowa | 85 | Iowa State | 64 | UI 22-6 |
| November 26, 1977 | Ames | Iowa State | 79 | Iowa | 78 | UI 22-7 |
| December 11, 1978 | Iowa City | Iowa | 67 | Iowa State | 66 | UI 23-7 |
| December 15, 1979 | Ames | (17) Iowa | 67 | Iowa State | 64 | UI 24-7 |
| December 20, 1980 | Iowa City | (16) Iowa | 85 | Iowa State | 59 | UI 25-7 |
| December 8, 1981 | Ames | (6) Iowa | 79 | Iowa State | 68 | UI 26-7 |
| January 15, 1983 | Iowa City | (12) Iowa | 73 | Iowa State | 56 | UI 27-7 |
| January 14, 1984 | Ames | Iowa State | 76 | Iowa | 72 (2OT) | UI 27-8 |
| December 4, 1984 | Iowa City | Iowa State | 54 | Iowa | 50 | UI 27-9 |
| December 10, 1985 | Ames | Iowa State | 74 | Iowa | 61 | UI 27-10 |
| December 20, 1986 | Iowa City | (3) Iowa | 89 | Iowa State | 64 | UI 28-10 |
| December 19, 1987 | Ames | (20) Iowa State | 102 | (7) Iowa | 100 (OT) | UI 28-11 |
| December 10, 1988 | Iowa City | (5) Iowa | 91 | Iowa State | 71 | UI 29-11 |
| December 7, 1989 | Ames | Iowa | 89 | Iowa State | 87 | UI 30-11 |
| December 8, 1990 | Iowa City | Iowa | 75 | Iowa State | 73 | UI 31-11 |
| December 14, 1991 | Ames | Iowa State | 98 | (16) Iowa | 84 | UI 31-12 |
| December 12, 1992 | Iowa City | (8) Iowa | 78 | Iowa State | 51 | UI 32-12 |
| December 11, 1993 | Ames | Iowa State | 86 | Iowa | 79 | UI 32-13 |
| December 10, 1994 | Iowa City | Iowa State | 76 | Iowa | 63 | UI 32-14 |
| December 9, 1995 | Ames | (12) Iowa | 56 | Iowa State | 50 | UI 33-14 |
| December 14, 1996 | Iowa City | (6) Iowa State | 81 | Iowa | 74 | UI 33-15 |
| December 13, 1997 | Ames | (10) Iowa | 60 | Iowa State | 59 | UI 34-15 |
| December 12, 1998 | Iowa City | Iowa | 74 | Iowa State | 54 | UI 35-15 |
| December 11, 1999 | Ames | Iowa State | 79 | Iowa | 66 | UI 35-16 |
| December 9, 2000 | Iowa City | Iowa | 80 | (25) Iowa State | 68 | UI 36-16 |
| December 8, 2001 | Ames | (12) Iowa | 78 | Iowa State | 53 | UI 37-16 |
| December 13, 2002 | Iowa City | Iowa State | 73 | Iowa | 69 | UI 37-17 |
| March 21, 2003 | Ames | Iowa | 54 | Iowa State | 53 | UI 38-17 (NIT) |
| January 21, 2004 | Ames | Iowa State | 84 | Iowa | 76 | UI 38-18 |
| December 10, 2004 | Iowa City | (17) Iowa | 70 | Iowa State | 63 | UI 39-18 |
| December 9, 2005 | Ames | Iowa State | 72 | (12) Iowa | 60 | UI 39-19 |
| December 8, 2006 | Iowa City | Iowa | 77 | Iowa State | 59 | UI 40-19 |
| December 8, 2007 | Ames | Iowa State | 56 | Iowa | 47 | UI 40-20 |
| December 12, 2008 | Iowa City | Iowa | 73 | Iowa State | 57 | UI 41-20 |
| December 11, 2009 | Ames | Iowa State | 81 | Iowa | 71 | UI 41-21 |
| December 10, 2010 | Iowa City | Iowa State | 75 | Iowa | 72 | UI 41-22 |
| December 9, 2011 | Ames | Iowa State | 86 | Iowa | 76 | UI 41-23 |
All Time Record: Iowa Leads 41-23
Last 15 Meetings: Iowa State Leads 8-7