Began racing at the age of 5 and became the youngest driver (at 15) to lead a lap at his home-state Bristol (Tenn.) Motor Speedway, in a USAR Hooters Pro Cup event.
Moved to Mooresville, N.C., at the age of 15 to concentrate on his racing career, eventually earning a GED online.
Took three consecutive pole positions in the 2010 Nationwide Series (his first full season), tying the series record held by four others, including Mark Martin and Jeff Gordon.
Raced to 17th place in his first Sprint Cup start (in Fort Worth), posting the best passed-to-getting passed ratio. The performance earned Bayne a limited 2011 schedule in the No. 21 Ford owned by the Wood Brothers.
Posted the third-fastest time in front-row qualifying for the 2011 Daytona 500, trailing only Dale Earnhardt Jr. and Jeff Gordon.
Drove to victory in the Daytona 500 the following Sunday, one day after his 20th birthday, becoming the youngest winner in the prestigious race's history.
Supports the Pittsburgh Steelers and enjoys skateboarding and snowboarding when away from the racetrack.