http://www.nascar.com/en_us/news-me...board-for-event-charlotte-motor-speedway.html
The race format is as follows:
- The race will feature four stages (20 laps, 20 laps, 20 laps, 10 laps), totaling 70 laps, an ode to the 1992 edition of the same distance.
- The goal for all competitors: Earn a spot in the final 10-lap, 10-car stage.
- The winner of each of the first three stages will lock up a spot in the final stage, as long as they remain on the lead lap after the third stage.
- The cars with the best average finish in the first three stages will make up the remaining spots needed to fill the 10-car final stage.
- The remaining 10 cars will be lined up by average finish of the first three stages and given the option to pit. Exit off pit road determines starting order for final stage.
- The winner will be awarded $1,000,000.
Crew chief strategy has been at a premium throughout this season, and that won't change in the All-Star Race thanks to a unique opportunity granted each team: A coveted set of softer tires. Each team will have one set of these tires available to use at their discretion. A softer tire provides the car with more grip and, thus, speed. In other words, it's a game-changer. But there's a catch: Teams that choose to put on their softer tires to start the final stage must start behind those that choose regular tires.