The Grand Slam in NASCAR is the achievement of winning all of NASCAR's Sprint Cup Series majors in a calendar year.
The Grand Slam
The R. J. Reynolds Tobacco Company announced at the Waldorf Astoria New York during the annual end of season prizegiving ceremony in 1984 two new events that would define NASCAR for years to come. One of them was the winner-only race, which has been known since 2008 as the Sprint All-Star Race. The other that they were formally elevating the sport's four majors into a formal Grand Slam with a cash bonus, the Winston Million. The events were as follows:
The Southern 500 (known as the oldest super speedway race on the circuit – held at Darlington Raceway on Labor Day weekend from 1950-2003, in November in 2004, omitted for ten years by the Ferko lawsuit, returned to Labor Day weekend in 2015.)