The Westgate Las Vegas SuperBook releases its updated Game of the Year lines every week, and it downgraded Ohio State after its win over Wisconsin.
The Buckeyes are now a 7-point favorite over Michigan for their Nov. 26 meeting in Columbus.
Last week, Ohio State was -9 against the Wolverines.
Here are the rest of the future Big Ten point spreads.
Michigan (-18.5) at Michigan State
Nebraska at Wisconsin (-6)
Iowa at Penn State (pk)
Nebraska at Ohio State (-20.5)
Michigan (-11) at Iowa
Ohio State (-23.5) at Michigan State
Nebraska at Iowa (pk)
Michigan at Ohio State (-7)