Ty Isaac took his first carry of the night and found pay dirt as he went in from 7 yards out for a Michigan touchdown.
With 8:56 left to play in the first half, the Wolverines have a 10-0 lead.
Michigan used its underneath offense to pick up a pair of first downs before Speight found Jehu Chesson for a 29-yard gain down to the Iowa 20. They picked up a third and short with a nice pitch and catch from Speight to Amara Darboh at the 7 to set up the score.
Hawkeyes miss field goal after being gifted second chance
The Michigan defense had Iowa off the field, but the punt return unit ran into the punter on back-to-back plays and the Hawkeyes were able to get the ball back near midfield.