Pac-12 Rivalries
Named rivalries
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Oregon State vs Washington State ON RECORD SINCE 1916 Washington State leads the series 56-44-3 in meetings on record since 1916. All-time: Oregon State 44 - 56 Washington State · leader Washington State 
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Colorado State vs Utah State ON RECORD SINCE 1902 Colorado State leads the series 40-38-2 in meetings on record since 1902. All-time: Colorado State 40 - 38 Utah State · leader Colorado State v
Colorado State vs San Diego State ON RECORD SINCE 1978 San Diego State leads the series 23-15 in meetings on record since 1978. All-time: Colorado State 15 - 23 San Diego State · leader San Diego State 
v Fresno State vs Utah State ON RECORD SINCE 1952 Fresno State leads the series 19-14-1 in meetings on record since 1952. All-time: Fresno State 19 - 14 Utah State · leader Fresno State v Fresno State vs San Diego State ON RECORD SINCE 1969 San Diego State leads the series 19-13 in meetings on record since 1969. All-time: Fresno State 13 - 19 San Diego State · leader San Diego State 
v Boise State vs Utah State ON RECORD SINCE 1975 Boise State leads the series 26-5 in meetings on record since 1975. All-time: Boise State 26 - 5 Utah State · leader Boise State v Boise State vs Fresno State ON RECORD SINCE 1977 Boise State leads the series 17-10 in meetings on record since 1977. All-time: Boise State 17 - 10 Fresno State · leader Boise State v San Diego State vs Utah State ON RECORD SINCE 1947 San Diego State leads the series 13-5 in meetings on record since 1947. All-time: San Diego State 13 - 5 Utah State · leader San Diego State v Colorado State vs Fresno State ON RECORD SINCE 1992 Colorado State leads the series 11-7 in meetings on record since 1992. All-time: Colorado State 11 - 7 Fresno State · leader Colorado State v Fresno State vs Oregon State ON RECORD SINCE 1981 Fresno State leads the series 9-6 in meetings on record since 1981. All-time: Fresno State 9 - 6 Oregon State · leader Fresno State v Boise State vs Colorado State ON RECORD SINCE 2011 Boise State leads the series 13-1 in meetings on record since 2011. All-time: Boise State 13 - 1 Colorado State · leader Boise State v Boise State vs Oregon State ON RECORD SINCE 1986 Oregon State leads the series 6-5 in meetings on record since 1986. All-time: Boise State 5 - 6 Oregon State · leader Oregon State v Boise State vs San Diego State ON RECORD SINCE 2011 Boise State leads the series 6-5 in meetings on record since 2011. All-time: Boise State 6 - 5 San Diego State · leader Boise State v Oregon State vs San Diego State ON RECORD SINCE 1972 Oregon State leads the series 5-2 in meetings on record since 1972. All-time: Oregon State 5 - 2 San Diego State · leader Oregon State v Fresno State vs Washington State ON RECORD SINCE 1987 Washington State leads the series 4-3 in meetings on record since 1987. All-time: Fresno State 3 - 4 Washington State · leader Washington State v Boise State vs Washington State ON RECORD SINCE 1997 Washington State leads the series 5-2 in meetings on record since 1997. All-time: Boise State 2 - 5 Washington State · leader Washington State v Utah State vs Washington State ON RECORD SINCE 1949 Washington State leads the series 4-2 in meetings on record since 1949. All-time: Utah State 2 - 4 Washington State · leader Washington State v Colorado State vs Oregon State ON RECORD SINCE 1962 Oregon State leads the series 3-2 in meetings on record since 1962. All-time: Colorado State 2 - 3 Oregon State · leader Oregon State v San Diego State vs Washington State ON RECORD SINCE 2007 Washington State leads the series 3-1 in meetings on record since 2007. All-time: San Diego State 1 - 3 Washington State · leader Washington State v Colorado State vs Washington State ON RECORD SINCE 2013 Washington State leads the series 3-1 in meetings on record since 2013. All-time: Colorado State 1 - 3 Washington State · leader Washington State v Oregon State vs Utah State ON RECORD SINCE 1997 Oregon State leads the series 2-1 in meetings on record since 1997. All-time: Oregon State 2 - 1 Utah State · leader Oregon State 
v Texas State vs Utah State ON RECORD SINCE 2012 Utah State leads the series 1-0 in meetings on record since 2012. All-time: Texas State 0 - 1 Utah State · leader Utah State v San Diego State vs Texas State ON RECORD SINCE 2026 San Diego State leads the series 1-0 in meetings on record since 2026. All-time: San Diego State 1 - 0 Texas State · leader San Diego State One page for every Pac-12 pairing that has met on the field, refreshed after every meeting. Head-to-head record, results on record and the numbers behind each series. 23 series in all.
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Frequently asked questions
Which Pac-12 series has been played the most?
Oregon State vs Washington State has the most meetings on record among Pac-12 pairings, with 103. Washington State leads the series 56-44-3 in meetings on record since 1916.
Which Pac-12 series have their own page?
Every Pac-12 pairing that has met on the field: Oregon State vs Washington State, Colorado State vs Utah State, Colorado State vs San Diego State, Fresno State vs Utah State, Fresno State vs San Diego State, Boise State vs Utah State, Boise State vs Fresno State, San Diego State vs Utah State, Colorado State vs Fresno State, Fresno State vs Oregon State, Boise State vs Colorado State, Boise State vs Oregon State, Boise State vs San Diego State, Oregon State vs San Diego State, Fresno State vs Washington State, Boise State vs Washington State, Utah State vs Washington State, Colorado State vs Oregon State, San Diego State vs Washington State, Colorado State vs Washington State, Oregon State vs Utah State, Texas State vs Utah State, San Diego State vs Texas State.