The Minnesota Corn Crowers Ethanol Challenge was decided at Montevideo's Fiesta City Speedway on Friday.
Brock Gronwold of Fergus Falls took the lead from his front row starting spot in the WISSOTA Midwest Modified feature. Gronwold led all 20 laps and held off Brian Haben of Holloway in the final laps to get the win.
Marshall Tofte of Madison was third, Dominick Gregoire of Cottonwood fourth, and Ronnie Rihn of Bloomer, Wis., fifth.
Gronwold was the winner of the Governor's Ethanol Challenge. Rihn was second in the series, Tofte third and Haben fourth.