The Iowa State–Kansas State football rivalry is an American college football rivalry between the Iowa State Cyclones and the Kansas State Wildcats held every year since 1917, making it one of the longest continuous series in college football history as of 2024. It is also one of just two never-interrupted rivalries in college football. The October 2016 game marked the 100th straight year the two teams have met. In November 2023, the Big 12 announced its scheduling matrix for the next four seasons, which is set to end the rivalry's continuous streak in 2027.

History

The teams first met in 1917, when both universities were members of the erstwhile Missouri Valley Conference. The match-up continued as an annual conference game through the schools' shift into the Big 12 Conference. The series has been dominated by long winning streaks for both teams, with each team's longest winning streak at 10 games. While Kansas State has gone 26–9 against the Cyclones since 1989, Iowa State leads the series 54–50–4. Historically, the game was not considered a major rivalry, but in light of changes in the Big 12 in the late 2000s, the universities pushed to highlight it to generate revenue and interest for their football programs. They scheduled two neutral-site games at Arrowhead Stadium in Kansas City, Missouri in 2009 and 2010, which fans and the media dubbed "Farmageddon", a reference to the agricultural roots of these land-grant universities. The first Farmageddon on a neutral site since 2010 will occur on August 23, 2025, this time at the Aviva Stadium in Dublin, Ireland.

Game results