As other leaders crashed or ran out of fuel, Kyle Busch emerged as a contender in the closing kilometres and prevailed in overtime to win Sunday's NASCAR Cup Series race at Talladega Superspeedway.

Busch, who had previously been unimportant at the front until the last laps of the race, took the lead when Bubba Wallace and Ryan Blaney collided while battling for the lead.

Busch earned his 62nd career victory, his second of the year. Even though his fuel tank was almost empty, he continued to race through the final caution and finished third on the final restart.

The identical fuel wager was made by other drivers. Ty Gibbs, a late-race rival at the front, ran out of gas and placed 31st.

Busch, 37, became the third multiple-race champion of the year. He only led three laps. Wallace had 35 while Blaney had 47.

Ross Chastain moved to the middle to challenge Blaney for the lead, quickly bringing the first overtime of the race under caution.

 Alongside Chastain, Noah Gragson lost control, causing a collision with other vehicles.

Ryan Preece struck Kyle Larson hard as he went sideways behind the leaders. Chastain ran swiftly away from the collision.

With five circuits remaining in the race, Joey Logano altered lanes and was bumped by Corey LaJoie, causing an incident involving six vehicles and the raising of the caution flag.

With 47 circuits remaining, Harrison Burton was leading when Noah Gragson slammed into him from behind in a close draught. Burton lost control, drifted to the inside and  off the racetrack before regaining control