No.12 Tar Heels Earn Series Sweep, Wallop Wolverines 9-1 Posted Mar 8, 2010 Junior Colin Bates allowed one earned run in 5.2 innings of work to lead No. 12 North Carolina over Michigan 9-1 Sunday in front of 2209 fans at Boshamer Stadium. Bates improves to 3-0 on the season and is perfect in three career starts on the mound. Ben Bunting and Ryan Graepel each posted three hits and two RBI, as North Carolina improves to 10-1 on the year. Michigan falls to 4-7 after the three-game series sweep. (Tar Heel Blue)