| | No. | Date | Location | Winner | Score | 
|---|
 | 1 | December 5, 1975 | Ames, IA | Iowa State | 92–63 |  | 2 | February 6, 1977 | Ames, IA | Iowa State | 71–58 |  | 3 | February 18, 1977 | Iowa City, IA | Iowa State | 82–63 |  | 4 | December 3, 1977 | Iowa City, IA | Iowa State | 74–71OT |  | 5 | February 23, 1978 | Des Moines, IA | Iowa | 77–60 |  | 6 | February 25, 1978 | Des Moines, IA | Iowa State | 87–82 |  | 7 | December 4, 1978 | Ames, IA | Iowa | 89–70 |  | 8 | February 14, 1979 | Iowa City, IA | Iowa | 81–70 |  | 9 | February 22, 1979 | Des Moines, IA | Iowa | 68–67 |  | 10 | December 15, 1979 | Ames, IA | Iowa State | 80–69 |  | 11 | January 29, 1980 | Iowa City, IA | Iowa | 66–50 |  | 12 | December 2, 1980 | Iowa City, IA | Iowa | 67–66 |  | 13 | January 21, 1981 | Ames, IA | Iowa | 66–62 |  | 14 | December 2, 1981 | Ames, IA | Iowa State | 82–59 |  | 15 | January 21, 1982 | Iowa City, IA | Iowa | 62–44 |  | 16 | March 11, 1982 | Warrensburg, MO | Iowa State | 64–52 |  | 17 | November 23, 1982 | Iowa City, IA | Iowa | 64–59 |  | 18 | December 5, 1983 | Ames, IA | Iowa | 86–75OT |  | 19 | December 15, 1984 | Iowa City, IA | Iowa | 81–41 |  | 20 | December 4, 1985 | Ames, IA | #15 Iowa | 63–57 |  | 21 | December 10, 1986 | Iowa City, IA | #17 Iowa | 70–51 |  | 22 | December 1, 1987 | Ames, IA | #6 Iowa | 93–49 |  | 23 | December 7, 1988 | Iowa City, IA | #11 Iowa | 79–46 |  | 24 | December 17, 1989 | Ames, IA | #5 Iowa | 75–55 |  | 25 | November 27, 1991 | Iowa City, IA | #11 Iowa | 70–58 |  | 26 | December 1, 1996 | Iowa City, IA | #10 Iowa | 64–53 | 
 | No. | Date | Location | Winner | Score | 
|---|
 | 27 | December 13, 1997 | Ames, IA | Iowa State | 74–57 |  | 28 | November 17, 1998 | Iowa City, IA | #21 Iowa State | 81–65 |  | 29 | December 11, 1999 | Ames, IA | #9 Iowa State | 79–69 |  | 30 | November 22, 2000 | Iowa City, IA | #8 Iowa State | 86–76 |  | 31 | December 12, 2001 | Ames, IA | #5 Iowa State | 82–64 |  | 32 | December 4, 2002 | Iowa City, IA | Iowa | 64–39 |  | 33 | December 3, 2003 | Ames, IA | Iowa State | 101–94 |  | 34 | December 1, 2004 | Iowa City, IA | Iowa | 89–80 |  | 35 | December 8, 2005 | Ames, IA | Iowa State | 77–61 |  | 36 | November 30, 2006 | Iowa City, IA | Iowa State | 80–74 |  | 37 | December 7, 2011 | Ames, IA | Iowa State | 62–54 |  | 38 | December 6, 2012 | Iowa City, IA | Iowa | 50–42 |  | 39 | December 12, 2013 | Ames, IA | #17 Iowa State | 83–70 |  | 40 | December 11, 2014 | Iowa City, IA | #24 Iowa | 76–67 |  | 41 | December 11, 2015 | Ames, IA | Iowa State | 69–66 |  | 42 | December 7, 2016 | Iowa City, IA | Iowa | 88–76 |  | 43 | December 6, 2017 | Ames, IA | Iowa | 61–55 |  | 44 | December 5, 2018 | Iowa City, IA | #16 Iowa | 73–70 |  | 45 | December 11, 2019 | Ames, IA | Iowa | 75–69 |  | 46 | December 9, 2020 | Iowa City, IA | Iowa | 82–80 |  | 47 | December 8, 2021 | Ames, IA | #15 Iowa State | 77–70 |  | 48 | December 7, 2022 | Iowa City, IA | #16 Iowa | 70–57 |  | 49 | December 6, 2023 | Ames, IA | #4 Iowa | 67–58 |  | 50 | December 11, 2024 | Iowa City, IA | #2 Iowa | 75–69 |  | Series: Iowa leads 30–20 | 
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