Colorado Buffaloes vs Iowa State Cyclones

Colorado Buffaloes 50

Colorado Buffaloes leads 50-15-1

1 tie

1946 to 2025

Colorado Buffaloes have won 2 straight

Iowa State Cyclones 15

Series timeline

▲ Colorado Buffaloes ahead (peak +35) ▼ Iowa State Cyclones ahead (peak +1)

Colorado Buffaloes Iowa State Cyclones Tie Postseason One meeting per cell

Longest streaks: Colorado Buffaloes 16 (1984–1999), Iowa State Cyclones 3 (1948–1950). Current: Colorado Buffaloes 2.

Split	Colorado Buffaloes record
Regular season	50-15-1
Hosted by Colorado Buffaloes	26-6-1
Hosted by Iowa State Cyclones	24-9
Last 10 seasons (2002 to 2025)	7-3
Largest Colorado Buffaloes win	52-0 (1956)
Largest Iowa State Cyclones win	57-19 (1962)

2020s

Season	Date	Winner	Score	Site	Round
2025	Oct 11, 2025	Colorado Buffaloes	24-17	at Colorado Buffaloes	Week 7

2010s

Season	Date	Winner	Score	Site	Round
2010	Nov 13, 2010	Colorado Buffaloes	34-14	at Colorado Buffaloes	Week 11

2000s

Season	Date	Winner	Score	Site	Round
2009	Nov 14, 2009	Iowa State Cyclones	17-10	at Iowa State Cyclones	Week 11
2008	Nov 8, 2008	Colorado Buffaloes	28-24	at Colorado Buffaloes	Week 11
2007	Nov 10, 2007	Iowa State Cyclones	31-28	at Iowa State Cyclones	Week 11
2006	Nov 11, 2006	Colorado Buffaloes	33-16	at Colorado Buffaloes	Week 11
2005	Nov 12, 2005	Iowa State Cyclones	30-16	at Iowa State Cyclones	Week 11
2004	Oct 16, 2004	Colorado Buffaloes	19-14	at Colorado Buffaloes	Week 8
2003	Nov 15, 2003	Colorado Buffaloes	44-10	at Iowa State Cyclones	Week 13
2002	Nov 16, 2002	Colorado Buffaloes	41-27	at Colorado Buffaloes	Week 13
2001	Nov 10, 2001	Colorado Buffaloes	40-27	at Iowa State Cyclones	Week 11
2000	Nov 11, 2000	Iowa State Cyclones	35-27	at Colorado Buffaloes	Week 12

1990s

Season	Date	Winner	Score	Site	Round
1999	Oct 23, 1999	Colorado Buffaloes	16-12	at Iowa State Cyclones	Week 9
1998	Nov 14, 1998	Colorado Buffaloes	37-8	at Colorado Buffaloes	Week 12
1997	Nov 8, 1997	Colorado Buffaloes	43-38	at Iowa State Cyclones	Week 12
1996	Nov 9, 1996	Colorado Buffaloes	49-42	at Colorado Buffaloes	Week 12
1995	Oct 21, 1995	Colorado Buffaloes	50-28	at Iowa State Cyclones	Week 9
1994	Nov 19, 1994	Colorado Buffaloes	41-20	at Colorado Buffaloes	Week 13
1993	Nov 20, 1993	Colorado Buffaloes	21-16	at Iowa State Cyclones	Week 13
1992	Nov 21, 1992	Colorado Buffaloes	31-10	at Colorado Buffaloes	Week 13
1991	Nov 23, 1991	Colorado Buffaloes	17-14	at Iowa State Cyclones	Week 13
1990	Oct 13, 1990	Colorado Buffaloes	28-12	at Colorado Buffaloes	Week 8

1980s

Season	Date	Winner	Score	Site	Round
1989	Oct 14, 1989	Colorado Buffaloes	52-17	at Iowa State Cyclones	Week 7
1988	Oct 29, 1988	Colorado Buffaloes	24-12	at Colorado Buffaloes	Week 10
1987	Oct 31, 1987	Colorado Buffaloes	42-10	at Iowa State Cyclones	Week 10
1986	Oct 18, 1986	Colorado Buffaloes	31-3	at Colorado Buffaloes	Week 8
1985	Oct 19, 1985	Colorado Buffaloes	40-6	at Iowa State Cyclones	Week 8
1984	Oct 13, 1984	Colorado Buffaloes	23-21	at Colorado Buffaloes	Week 8
1983	Oct 15, 1983	Iowa State Cyclones	22-10	at Iowa State Cyclones	Week 8
1982	Oct 23, 1982	Iowa State Cyclones	31-14	at Colorado Buffaloes	Week 8
1981	Oct 24, 1981	Iowa State Cyclones	17-10	at Iowa State Cyclones	Week 8
1980	Nov 1, 1980	Colorado Buffaloes	17-9	at Colorado Buffaloes	Week 10

1970s

Season	Date	Winner	Score	Site	Round
1979	Nov 3, 1979	Iowa State Cyclones	24-10	at Iowa State Cyclones	Week 10
1978	Nov 18, 1978	Iowa State Cyclones	20-16	at Colorado Buffaloes	Week 12
1977	Nov 5, 1977	Colorado Buffaloes	12-7	at Iowa State Cyclones	Week 10
1976	Oct 23, 1976	Colorado Buffaloes	33-14	at Colorado Buffaloes	Week 8
1975	Nov 1, 1975	Colorado Buffaloes	28-27	at Iowa State Cyclones	Week 9
1974	Oct 12, 1974	Colorado Buffaloes	34-7	at Colorado Buffaloes	Week 6
1973	Oct 6, 1973	Colorado Buffaloes	23-16	at Iowa State Cyclones	Week 6
1972	Oct 14, 1972	Colorado Buffaloes	34-22	at Colorado Buffaloes	Week 6
1971	Oct 9, 1971	Colorado Buffaloes	24-14	at Iowa State Cyclones	Week 5
1970	Oct 10, 1970	Colorado Buffaloes	61-10	at Colorado Buffaloes	Week 7

1960s

Season	Date	Winner	Score	Site	Round
1969	Oct 11, 1969	Colorado Buffaloes	14-0	at Iowa State Cyclones	Week 5
1968	Oct 5, 1968	Colorado Buffaloes	28-18	at Iowa State Cyclones	Week 4
1967	Oct 7, 1967	Colorado Buffaloes	34-0	at Colorado Buffaloes	Week 5
1966	Oct 15, 1966	Colorado Buffaloes	41-21	at Iowa State Cyclones	Week 6
1965	Oct 16, 1965	Tie	10-10	at Colorado Buffaloes	Week 6
1964	Oct 17, 1964	Colorado Buffaloes	14-7	at Iowa State Cyclones	Week 6
1963	Oct 19, 1963	Iowa State Cyclones	19-7	at Colorado Buffaloes	Week 6
1962	Oct 20, 1962	Iowa State Cyclones	57-19	at Iowa State Cyclones	Week 6
1961	Nov 25, 1961	Colorado Buffaloes	34-0	at Colorado Buffaloes	Week 11
1960	Oct 15, 1960	Colorado Buffaloes	21-6	at Iowa State Cyclones	Week 6

1950s

Season	Date	Winner	Score	Site	Round
1959	Oct 17, 1959	Iowa State Cyclones	27-0	at Colorado Buffaloes	Week 6
1958	Oct 18, 1958	Colorado Buffaloes	20-0	at Iowa State Cyclones	Week 6
1957	Nov 23, 1957	Colorado Buffaloes	38-21	at Colorado Buffaloes	Week 11
1956	Oct 20, 1956	Colorado Buffaloes	52-0	at Iowa State Cyclones	Week 6
1955	Nov 19, 1955	Colorado Buffaloes	40-0	at Colorado Buffaloes	Week 10
1954	Oct 16, 1954	Colorado Buffaloes	20-0	at Iowa State Cyclones	Week 5
1953	Oct 31, 1953	Colorado Buffaloes	41-34	at Colorado Buffaloes	Week 7
1952	Oct 18, 1952	Colorado Buffaloes	21-12	at Iowa State Cyclones	Week 6
1951	Nov 3, 1951	Colorado Buffaloes	47-20	at Colorado Buffaloes	Week 8
1950	Sep 23, 1950	Iowa State Cyclones	14-7	at Iowa State Cyclones	Week 2

1940s

Season	Date	Winner	Score	Site	Round
1949	Oct 8, 1949	Iowa State Cyclones	13-6	at Colorado Buffaloes	Week 5
1948	Oct 16, 1948	Iowa State Cyclones	18-7	at Iowa State Cyclones	Week 6
1947	Sep 27, 1947	Colorado Buffaloes	7-0	at Iowa State Cyclones	Week 3
1946	Sep 21, 1946	Colorado Buffaloes	13-7	at Colorado Buffaloes	Week 2