RELATED: Live weather updates from Chicagoland | Trucks race postponed
JOLIET, Ill. -- Rain has halted on-track activity Friday at Chicagoland Speedway, throwing a kink into a busy tripleheader weekend schedule for all three NASCAR national series.
NASCAR Camping World Truck Series qualifying, which had begun 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).
NASCAR Sprint Cup Series qualifying, scheduled for 6:45 p.m. ET, was also canceled.
Kevin Harvick will lead the field to green Sunday from the pole position.
Precipitation pelted the 1.5-mile oval and surrounding area Thursday evening and returned Friday, the opening day of track time for the Sprint Cup, XFINITY and Camping World Truck Series. The main event -- the myAFibRisk.com 400 (3 p.m. ET, NBCSN, MRN, SiriusXM) -- marks the first of 10 races in the Chase for the NASCAR Sprint Cup Series playoffs.
All three series got on track Friday for opening practice before rain started to fall during the opening round of Truck Series qualifying, bringing out both the tarps and a red flag. Still scheduled for today is the American Ethanol E15 225 (8:30 p.m. ET, FS1), the 16th of 23 races for the truck tour this season.
The XFINITY Series is scheduled to resume on-track activity Saturday with qualifying at 2:45 p.m. ET and the Furious 7 300 at 6 p.m. ET. Both are to be broadcast on NBCSN/Live Extra.