Joey Logano, reinstated into the playoff field after Alex Bowman's car failed inspection, won at Las Vegas to clinch a spot in NASCAR's championship finale.
AJ Allmendinger won a two-lap sprint to finish on Saturday night for his first victory of the season and an automatic berth in the NASCAR Xfinity Series championship finale, rolling at Las Vegas Motor Speedway by leading a race-high 102 laps.
Hendrick Motorsports said Monday it will not appeal Alex Bowman's disqualification at Charlotte Motor Speedway that eliminated him from NASCAR title contention.
NASCAR acknowledged it is aware of allegations that an engineer for a Cup Series team accessed proprietary information and shared it with another team.
Kyle Larson raced to his Cup Series-high sixth victory of the season Sunday to easily advance to the third round of NASCAR's playoffs, winning on the hybrid road course/oval at Charlotte Motor Speedway.