The 2020 Illinois Truck & Equipment Allen Crowe 100 was the 19th stock car race of the 2020 ARCA Menards Series and the 38th iteration of the event. The race was held on Sunday, October 4, 2020, in Springfield, Illinois at the Illinois State Fairgrounds Racetrack, a 1 mile (1.6 km) permanent clay oval-shaped track at the Illinois State Fair. The race was extended from its scheduled 100 laps to 103 laps due to a NASCAR overtime finish. At race's end, a dominating Ryan Unzicker of Hendren Motorsports would hold off the field on the final restart to win his first and only win of the season.^[1] To fill out the podium, Hailie Deegan of DGR-Crosley and Bret Holmes of Bret Holmes Racing would finish second and third respectively.

Illinois State Fairgrounds Racetrack is a one mile long clay oval motor racetrack on the Illinois State Fairgrounds in Springfield, the state capital. It is frequently nicknamed The Springfield Mile. Constructed in the late 19th century and reconstructed in 1927, the track has hosted competitive auto racing since 1910, making it one of the oldest speedways in the United States. The original mile track utilized the current frontstretch and the other side was behind the current grandstands and the straightaways were connected by tight turns. It is the oldest track to continually host national championship dirt track racing, holding its first national championship race in 1934 under the American Automobile Association banner. It is the home of five world records for automobile racing, making it one of the fastest dirt tracks in the world. Since 1993, the venue is managed by Bob Sargent's Track Enterprises.

The only 30-minute practice session was held on Sunday, October 4. Corey Heim of Venturini Motorsports would set the fastest time in the session, with a lap of 35.791 and an average speed of 100.584 miles per hour (161.874 km/h).^[2]

Qualifying was held on Sunday, October 4, at 11:30 AM EST. Each driver would have two laps to set a fastest time; the fastest of the two would count as their official qualifying lap.

Ryan Unzicker of Hendren Motorsports would win the pole, setting a time of 34.047 and an average speed of 105.736 miles per hour (170.166 km/h). The pole was Unzicker's first.^[3]