The 2020 Dutch Boy 150 was the 13th stock car race of the 2020 ARCA Menards Series, the seventh race of the 2020 Sioux Chief Showdown, and the ninth iteration of the event. The race was held on Saturday, August 29, 2020, in Madison, Illinois at Gateway Motorsports Park, a 1.25 miles (2.01 km) permanent oval-shaped racetrack. The race took the scheduled 120 laps to complete. At race's end, Ty Gibbs of Joe Gibbs Racing would dominate and win his sixth career ARCA Menards Series win and his fourth of the season. To fill out the podium, Chandler Smith of Venturini Motorsports and Sam Mayer of GMS Racing would finish second and third, respectively.