Tate Forcier threw four interceptions and fumbled in his end zone, and No. 9 Ohio State took advantage to beat Michigan 21-10 Saturday for its sixth straight win in the series.The Buckeyes (10-2, 7-1) clinched an outright Big Ten championship and will play in the Rose Bowl with a five-game winning streak.The Wolverines started the season 4-0 and ended it 5-7.