It's now an elimination format. The chase field is cut off at 16 with 10 races to go. The chase field is further cut to 12 after 3 races. Four more are eliminated after the 6th race, leaving 8 in the chase field. After 3 more races, four more are cut, leaving 4 contenders for the last race. The highest finisher in the last race at Homestead wins the championship.