Kyle Larson will lead the field to green Saturday (photo - NASCAR via Getty Images)Rain Postpones Truck Race at Chicagoland Until Saturday September 19, 2015 NASCAR JOELIET, IL – NASCAR Camping World Truck Series qualifying, which had started Friday at 4:35 p.m. ET, was canceled without a full round being completed. So the field is being set per the rule book, resulting in practice speeds being used to set the starting grid. Friday’s Truck Series race was postponed. The American Ethanol E15 225 is scheduled to begin at 10:30 a.m. Saturday at Chicagoland Speedway (FOX Sports 2, MRN). Starting Lineup