# Big 12 college football matchups > Live situation record from CLSTR: https://clstr.news/situations/big-12-college-football-matchups > Updated: 2026-09-12T01:00:00.000Z. Sources: 13. Developments: 2. The Big 12 Conference enters its second week of the season with several high-profile matchups. A primary game features No. 15 BYU hosting Arizona in Provo. Both teams entered the week undefeated after dominant opening performances: BYU secured a 63-7 victory over Utah Tech, while Arizona defeated Northern Arizona 35-7. The matchup revives a historic rivalry, with Arizona seeking revenge for a double-overtime loss to the Cougars last season. In the CyHawk Series, Iowa State travels to face No. 21 Iowa. Iowa enters the contest following a 40-0 shutout of Northern Illinois, while Iowa State is coming off a 38-10 win against Southeast Missouri State. Despite Iowa being favored, recent history suggests a close contest, as the last four meetings between the rivals were decided by a combined 14 points. The matchup marks a significant transition for the Cyclones, who are entering the rivalry under first-year head coach Jimmy Rogers following the departure of Matt Campbell to Penn State. Iowa enters the contest as a heavy betting favorite, with lines ranging between 13.5 and 14.5 points. While Iowa leads the all-time series 46-25 or 47-25 depending on the source, Iowa State has won the last two meetings in Iowa City. ## Timeline ### 2026-09-12: Iowa Hawkeyes host Iowa State Cyclones in Cy-Hawk rivalry No. 21 Iowa hosts Iowa State in the 73rd Cy-Hawk Series matchup at Kinnick Stadium this Saturday, following Week 1 wins for both teams. 10 sources. https://clstr.news/cluster/iowa-state-cyclones-prepare-for-cy-hawk-rivalry-game ### 2026-09-10: Big 12 football features BYU vs. Arizona and Iowa vs. Iowa State The Big 12 Conference features key matchups this week, including No. 15 BYU against Arizona and the CyHawk Series rivalry between No. 21 Iowa and Iowa State. 4 sources. https://clstr.news/cluster/big-12-football-features-byu-vs-arizona-and-iowa-vs-iowa-state --- Cite as: Big 12 college football matchups. CLSTR, https://clstr.news/situations/big-12-college-football-matchups