 The University of Kansas built a large advantage in the series by 1923 (17–1–3), but the series has subsequently been much more even, with the series tied 47–47–2 since that time.Kansas State has played Iowa State every year since their first match-up in 1917, making it the eighth-longest active series in NCAA college football (102 straight years), and the longest never-interrupted series in college football history.The series record is the closest for Kansas State against any of its old Big Eight Conference rivals, with Iowa State holding a 50–49–4 lead following the 2019 game.