Stole this from a thread on Reddit. The analysis is not mine.
https://reddit.com/r/CFB/s/dIykMB3IpdThe Big Ten could end up with as many as 5 undefeated teams in 2024.
4-team undefeated combinations:
* Illinois, Indiana, Iowa, USC
* Illinois, Maryland, Ohio State, UCLA
* Illinois, Maryland, Ohio State, Washington
* Illinois, Maryland, Ohio State, Wisconsin
* Illinois, Maryland, UCLA, Wisconsin
* Illinois, Maryland, Washington, Wisconsin
* Illinois, Ohio State, UCLA, Wisconsin
* Illinois, Ohio State, Washington, Wisconsin
* Indiana, Iowa, Oregon, Penn State
* Indiana, Iowa, Oregon, Rutgers
* Indiana, Iowa, Oregon, USC
* Indiana, Iowa, Penn State, Rutgers
* Indiana, Oregon, Penn State, Rutgers
* Iowa, Michigan, Penn State, Rutgers
* Iowa, Michigan, Purdue, Rutgers
* Iowa, Oregon, Penn State, Rutgers
* Maryland, Michigan, Purdue, UCLA
* Maryland, Michigan, UCLA, Wisconsin
* Maryland, Ohio State, UCLA, Wisconsin
* Maryland, Ohio State, Washington, Wisconsin
* Michigan State, Minnesota, Nebraska, Northwestern
* Michigan State, Minnesota, Nebraska, Washington
* Michigan State, Nebraska, Northwestern, Penn State
* Minnesota, Nebraska, Northwestern, Oregon
* Nebraska, Northwestern, Oregon, Penn State
* Northwestern, Oregon, Penn State, Rutgers
5-team undefeated combinations:
* Illinois, Maryland, Ohio State, UCLA, Wisconsin
* Illinois, Maryland, Ohio State, Washington, Wisconsin
* Indiana, Iowa, Oregon, Penn State, Rutgers
Edit: Illinois, Maryland, Ohio State, Washington, Wisconsin also works. That probably means I missed some 3 and 4 team combinations too but I’ll have to figure those out later.
Edit 2: The 4-team combination I missed was Maryland, Ohio State, Washington, Wisconsin