Iowa and Ohio St do not have much recent history since they did not play much when the 2 teams were in opposite divisions from 2011-2023. The last 5 meetings
2022 - @OSU 54, Iowa 10
2017 - @Iowa 55, OSU 24
2013 - @OSU 34, Iowa 24
2010 - OSU 20, @Iowa 17 (win vacated by OSU)
2009 - @OSU 27, Iowa 24 (OT)
Strangely enough Iowa and Ohio St have never played each other in the official Big Ten championship game, even though Ohio St has appeared in 5 CCG and Iowa has appeared in 3 CCG.
Also the last time Ohio St won in Iowa City was 2010, a win technically vacated by OSU, but Iowa's home winning streak in the series is safe until at least 2026, because Saturday's game is in Columbus and the 2nd straight game in the series that Iowa is the road team.
The last time Iowa won in Columbus was 1991. A game memorable because Iowa played in all black helmets after a mass shooting on the Iowa campus the day before.