FWIW:
In 1987 here were the conference standings:
- 7-0-1/9-2-1 Michigan State
- 6-2/10-3 Iowa
- 6-2/8-4 Indiana
- 5-3/8-4 Michigan
- 4-4/6-4-1 Ohio State
- 3-5/6-5 Minnesota
- 3-5/3-7-1 Purdue
- 2-5-1/3-7-1 Illinois
- 2-6/2-8-1 Northwestern
- 1-7/3-8 Wisconsin
The Spartans had an odd season. They opened up with a win over USC then suffered back-to-back blowout losses to ND and FSU. After that they went 7-0-1 in the conference but the weird part is that the tie was with one of the worst teams, Illinois. They beat all of the teams that finished .500 or better in the conference only missing Minnesota. Then they went to the RoseBowl and beat USC again.
Iowa lost to MSU and Michigan and missed Illinois. Their OOC was a loss to Tennessee in the Kick-off Classic and wins over Zona, ISU, and KSU. They beat Wyoming in the Holiday Bowl.
Indiana lost to Iowa and MSU in conference and missed Wisconsin. OOC they lost to Kentucky and beat Rice and Mizzou. They lost to Tennessee in the Peach Bowl.
Michigan lost badly to Notre Dame but beat WSU and Long Beach State OOC. In conference they lost to MSU, Indiana, and Ohio State. They missed They missed Purdue and beat Bama in the HoF Bowl.
Ohio State beat WVU and Oregon and tied LSU OOC. In conference they beat Michigan, Minnesota, Purdue, and Illinois. They lost to MSU, Iowa, IU, and Wisconsin.