KANSAS CITY, Kan. — The dozen drivers who advanced to the second round of the NASCAR Cup Series playoffs saw Kansas Speedway as a relatively straightforward test, given the potential chaos looming at Talladega and the unpredictability of the road course at Charlotte. For most of them, it turned out to be a test of survival.

Ross Chastain took the lead from Martin Truex Jr. on a late restart and won the NASCAR Cup Series race at Kansas Speedway on Sunday.