Right turns in the Cup Series at Charlotte Motor Speedway are on hold for 2017.

Multiple sources within the NASCAR industry told NBC Sports that the 1.5-mile track will hold its Oct. 7 race on its oval after exploring the concept of using the road course.

The sources spoke on the condition of anonymity because they weren’t authorized to speak about the decision publicly.

It’s likely the track’s road course will be used in the 2018 playoffs. The track will be making upgrades to the infield circuit, which uses all but a few hundred feet of the oval.

A.J. Allmendinger tested on Charlotte’s road course in mid-January, and the track had met with Cup teams and NASCAR about using the course this season.

A Charlotte Motor Speedway spokesman declined comment when asked about the decision.