VERMILLION, S.D. (AP) -- Martin Ruiz scored with 14 seconds remaining to answer a late South Dakota touchdown as Youngstown State sealed a wild 38-34 win Saturday.
Jordan Roberts ran in from 11 yards to give South Dakota a 34-31 lead with two minutes left to play. The Penguins (8-1, 5-0 Missouri Valley Conference) took off down the field with a 10-play, 74-yard drive that was capped off by Ruiz's three-yard rush into the end zone.
Kurt Hess finished with 283 yards passing for two touchdowns and rushed for another as the Penguins ended with 517 offensive yards. Youngstown State turned the ball over three times -- all fumbles -- against the Coyotes and fought through seven lead changes to stay undefeated in the MVC.
South Dakota (4-5, 3-3) capitalized on two Penguin fumbles after taking possession with a 17-yard TD run by QB Kevin Earl and a 40-yard field goal by Miles Bergner.