Colorado State Rams vs San Diego State Aztecs

Colorado State Rams 16

San Diego State Aztecs leads 23-16

wins

1978 to 2026

Colorado State Rams won the last meeting

San Diego State Aztecs 23

Series timeline

▲ Colorado State Rams ahead (peak +1) ▼ San Diego State Aztecs ahead (peak +8)

Colorado State Rams San Diego State Aztecs Tie Postseason One meeting per cell

Longest streaks: Colorado State Rams 4 (1994–1997), San Diego State Aztecs 5 (2009–2015). Current: Colorado State Rams 1.

Split	Colorado State Rams record
Regular season	16-23
Hosted by Colorado State Rams	8-11
Hosted by San Diego State Aztecs	8-12
Last 10 seasons (2010 to 2026)	3-7
Largest Colorado State Rams win	37-3 (1979)
Largest San Diego State Aztecs win	38-10 (1982)

2020s

Season	Date	Winner	Score	Site	Round
2026	Oct 24, 2026	Colorado State Rams	56-49	at Colorado State Rams	Week 8
2025	Oct 3, 2025	San Diego State Aztecs	45-24	at San Diego State Aztecs	Week 6
2023	Nov 11, 2023	Colorado State Rams	22-19	at Colorado State Rams	Week 12
2020	Dec 5, 2020	San Diego State Aztecs	29-17	at San Diego State Aztecs	Week 14

2010s

Season	Date	Winner	Score	Site	Round
2019	Oct 5, 2019	San Diego State Aztecs	24-10	at Colorado State Rams	Week 7
2016	Nov 26, 2016	Colorado State Rams	63-31	at San Diego State Aztecs	Week 14
2015	Oct 31, 2015	San Diego State Aztecs	41-17	at Colorado State Rams	Week 9
2012	Oct 13, 2012	San Diego State Aztecs	38-14	at San Diego State Aztecs	Week 7
2011	Nov 12, 2011	San Diego State Aztecs	18-15	at Colorado State Rams	Week 11
2010	Nov 6, 2010	San Diego State Aztecs	24-19	at San Diego State Aztecs	Week 10

2000s

Season	Date	Winner	Score	Site	Round
2009	Oct 24, 2009	San Diego State Aztecs	42-28	at Colorado State Rams	Week 8
2008	Oct 25, 2008	Colorado State Rams	38-34	at San Diego State Aztecs	Week 9
2007	Oct 6, 2007	San Diego State Aztecs	24-20	at Colorado State Rams	Week 6
2006	Dec 2, 2006	San Diego State Aztecs	17-6	at San Diego State Aztecs	Week 14
2005	Nov 12, 2005	San Diego State Aztecs	30-10	at Colorado State Rams	Week 11
2004	Oct 16, 2004	Colorado State Rams	21-17	at San Diego State Aztecs	Week 8
2003	Nov 15, 2003	Colorado State Rams	21-6	at Colorado State Rams	Week 13
2002	Nov 16, 2002	Colorado State Rams	49-21	at San Diego State Aztecs	Week 13
2001	Sep 22, 2001	San Diego State Aztecs	14-7	at Colorado State Rams	Week 4
2000	Oct 28, 2000	Colorado State Rams	34-22	at San Diego State Aztecs	Week 10

1990s

Season	Date	Winner	Score	Site	Round
1999	Oct 16, 1999	San Diego State Aztecs	17-10	at Colorado State Rams	Week 8
1997	Nov 22, 1997	Colorado State Rams	38-17	at San Diego State Aztecs	Week 14
1996	Oct 26, 1996	Colorado State Rams	27-18	at Colorado State Rams	Week 10
1995	Nov 25, 1995	Colorado State Rams	24-13	at San Diego State Aztecs	Week 14
1994	Sep 24, 1994	Colorado State Rams	19-17	at Colorado State Rams	Week 5
1993	Oct 16, 1993	San Diego State Aztecs	30-3	at San Diego State Aztecs	Week 8
1992	Oct 31, 1992	San Diego State Aztecs	20-13	at Colorado State Rams	Week 10
1991	Nov 9, 1991	San Diego State Aztecs	42-32	at San Diego State Aztecs	Week 11

1980s

Season	Date	Winner	Score	Site	Round
1988	Oct 22, 1988	Colorado State Rams	13-7	at Colorado State Rams	Week 9
1987	Nov 14, 1987	San Diego State Aztecs	26-12	at San Diego State Aztecs	Week 12
1986	Nov 1, 1986	San Diego State Aztecs	27-26	at Colorado State Rams	Week 10
1985	Sep 28, 1985	San Diego State Aztecs	48-23	at San Diego State Aztecs	Week 5
1984	Oct 20, 1984	San Diego State Aztecs	41-24	at San Diego State Aztecs	Week 9
1983	Oct 15, 1983	Colorado State Rams	17-15	at Colorado State Rams	Week 8
1982	Nov 20, 1982	San Diego State Aztecs	38-10	at San Diego State Aztecs	Week 12
1981	Sep 12, 1981	San Diego State Aztecs	30-14	at Colorado State Rams	Week 2
1980	Oct 18, 1980	Colorado State Rams	26-7	at San Diego State Aztecs	Week 8

1970s

Season	Date	Winner	Score	Site	Round
1979	Oct 20, 1979	Colorado State Rams	37-3	at Colorado State Rams	Week 8
1978	Nov 4, 1978	San Diego State Aztecs	34-31	at San Diego State Aztecs	Week 10