JOLIET, Ill. (AP) - Erik Jones passed Elliott Sadler with nine laps to go and held off Kyle Larson to win the NASCAR Xfinity Series race Saturday at Chicagoland Speedway, allowing Ryan Sieg and Blake Koch to claim the final two spots in the Chase for the championship.
The 20-year-old Jones' series-high fourth win of the season left him as the top seed for the seven-race Chase. Jones won the Truck Series title a year ago and will move to the Sprint Cup next year.
Sprint Cup champion Kyle Busch dominated most of the race, leading 154 of the first 181 laps until he cut a tire and spun out. Clint Bowyer had the lead on the re-start with 14 laps left before Sadler passed him. But Bowyer couldn't hold off the charging Jones in the 200-lap race.
Sadler was third, followed by Daniel Suarez and Illinois native Justin Allgaier. Busch finished 13th.
Jones has been the only Xfinity driver to have consistent success on the lower-tier circuit. Sadler and Suarez are the only other full-time drivers to win a race this season.