No. 19-ranked Michigan, behind the passing and running of Jim Harbaugh, continued to rebound from its embarrassing 1984 season with its second straight victory over a Top 20 opponent, defeating No. 15 South Carolina, 34-3, Saturday at Columbia, S.C.
Michigan is 2-0 in the wake of last season's 6-6 record, while South Carolina is 2-1.
Harbaugh finished with 12 completions in 22 attempts for 164 yards.
Meanwhile, Michigan's defense tamed the nation's No. 3-ranked offense. South Carolina, which averaged 557 yards and 38 points in its first two games, was limited to 167 yards rushing and 35 yards passing.
Even Michigan Coach Bo Schembechler had trouble criticizing his team's play.
"The most pleasing thing was to stop them on the one-yard line and take it 99 yards, stuffing it down their throats. That really pleased me," he said.
Ohio State 36, Colorado 13--Jim Karsatos passed for three touchdowns, and John Wooldridge, playing in place of injured All-American tailback Keith Byars, scored twice to lead No. 7 Ohio State.
Byars is sidelined with a broken bone in his foot.
Karsatos hit 18 of 26 attempts for 181 yards. Wooldridge carried 25 times for 119 yards and caught eight passes for 82 yards.
Karsatos, who guided his offense to a turnover-free game, passed for touchdowns of 20 yards to Mike Lanese, 11 yards to Wooldridge and five yards to Cris Carter.
Wooldridge, a junior who has spent his college career playing behind Byars, ran 15 yards for a touchdown. The Buckeyes (2-0) also scored on a three-yard run by George Cooper and a 30-yard field goal by Rich Spangler.
Four turnovers hurt Colorado (1-2).
Iowa 48, Northern Illinois 20--Chuck Long passed for 270 yards and five touchdowns at Iowa City, Iowa, and Bill Happel broke a school record with eight receptions for 211 yards to spark an easy victory for No. 4 Iowa.
Happel caught touchdown passes of 36, 40 and 13 yards before he and Long, who completed 18 of 28 attempts, left the game late in third quarter. Wide receivers Quinn Early and Robert Smith caught Long's other touchdown passes of 16 and eight yards.
Happel erased the school record of 192 receiving yards set by Dave Moritz in 1983. He also tied the record for touchdown receptions.
Iowa's defense, top-ranked in the nation in total yards, allowed just 85 yards, helping the Hawkeyes improve to 2-0. Northern Illinois fell to 1-2.
Purdue 37, Ball State 18--At West Lafayette, Ind., the Boilermakers' Jim Everett completed 12 consecutive passes and threw three touchdown passes in the first half.
The 6-5 quarterback, who has passed for 738 yards and seven touchdowns this season, threw another scoring pass in the fourth quarter, a 23-yarder to Steve Griffin, before taking the rest of the day off. He finished with 24 completions in 32 passes for 340 yards.
Purdue is 1-1, and Ball State is 0-3.
Indiana 38, Navy 35--Steve Bradley hit Ernie Jones with an eight-yard touchdown pass with 56 seconds left at Bloomington, Ind., to give Indiana its second straight victory after a winless 1984 season under Coach Bill Mallory--the first 2-0 start in six years for the Hoosiers.
In losing, Navy fell to 0-3 by a combined margin of eight points.
Wisconsin 26, Nevada Las Vegas 23--At Madison, Wis., Todd Gregoire kicked two fourth-quarter field goals, and Bud Keyes threw three touchdown passes as Wisconsin salvaged a nonconference victory.
Gregoire's 42-yard field goal with 9:08 left gave Wisconsin a 23-23 tie, and his 20-yarder with 3:38 remaining boosted the unbeaten Badgers to their second win in a row. UNLV dropped to 1-2.
Minnesota 62, Montana 17--At Minneapolis, Rickey Foggie ran for three touchdowns and threw a 75-yard scoring pass to Mel Anderson.
The Gophers (2-0) didn't have a third-down situation until late in the third quarter, so Foggie passed only 6 times, completing 3 for 101 yards before leaving the game after three quarters.
Foggie, who ran for 56 yards, scored on runs of three and two yards.
The loss dropped Montana to 1-1.