The Big One is a phrase describing any crash usually involving five or more cars in NASCAR and ARCA stock car racing. It is most commonly used at Daytona International Speedway and Talladega Superspeedway, although occasionally seen at other tracks as well, such as Dover International Speedway.
Until the 2000s, massive crashes were referred to as "major" or "terrific" crashes.
By the mid-1990s, competitors and media began taking note of the multi-car wrecks at Daytona and Talladega. In 1997, Dale Earnhardt described a final-lap crash at the 1997 Pepsi 400 as "the Big Wreck". News articles began using the term "Big Wreck" to describe such crashes in 1998, and by 1999, its use was widespread. Drivers began to openly admit they were apprehensive of its possibility.
One of the first times the term "The Big One" was used on-air was during the Winston 500 on ESPN October 11, 1998. Commentator Bob Jenkins said during the crash on lap 134 "this is the big one we hoped we would not have." One of the first published instances of the term "The Big One," was an April 18, 2000, article on ESPN.com about a crash in the DieHard 500. The term was also being used informally by fans on message boards.
During the 2001 Daytona 500, Fox commentator Darrell Waltrip used the term on-air to describe an 18-car crash in the backstretch on lap 173, as saying "It's the big one, gang, it's the big one. It's what we've all been fearing in this kind of racing is going to happen."
By 2001, the phrase was widely used by competitors, fans, and in print and broadcast media. It soon became standard NASCAR vernacular, and it became a retronym to describe past such accidents as well.