Reigning Cup Series champion Joey Logano begins the chase for his fourth career title in the Daytona 500 at 2:30 p.m. Sunday, kicking off an unprecedented year for the sport. Stock car racing’s highest circuit is set for a novel in-season tournament and will compete internationally, while the sanctioning body introduces several competition changes.

A five-race mid-season competition ultimately will pit two drivers vying for a $1 million prize. The tournament begins June 28 at Atlanta Motor Speedway, followed by trips to the Chicago Street Course, Sonoma Raceway and Dover Motor Speedway before the July 27 finale in Indianapolis Motor Speedway’s Brickyard 400.