Nascar

NASCAR sticking with its original rules package for Chase for the Sprint Cup

Matt Kenseth, right, walks away after talking with Denny Hamlin, left, and Kyle Busch, center, after qualifying Friday, Aug. 14, 2015, for the pole position for the NASCAR Sprint Cup series auto race at Michigan International Speedway in Brooklyn, Mich. (AP Photo/Carlos Osorio)

Matt Kenseth, right, walks away after talking with Denny Hamlin, left, and Kyle Busch, center, after qualifying Friday, Aug. 14, 2015, for the pole position for the NASCAR Sprint Cup series auto race at Michigan International Speedway in Brooklyn, Mich. (AP Photo/Carlos Osorio)  (The Associated Press)

NASCAR will stick with its original 2015 rules package throughout the Chase for the Sprint Cup after switching to track-specific packages for a handful of races recently.

A high-drag aerodynamic package was used at Indianapolis Motor Speedway last month and will be in place again this weekend at Michigan, and it received some criticism from drivers. But a low-downforce package put in place at Kentucky was more popular, and it will be used again at Darlington next month.

But when the 10-race Chase begins Sept. 20 at Chicagoland, the original rules will be used.

Steve O'Donnell, NASCAR's executive vice president and chief racing development officer, announced the decision Friday after a meeting with drivers at Michigan.