It’s Daytona 500 zero day—the green rag is scheduled to wave this afternoon at 1:29 PM. This morning we take an informal look at the number zero in stock car racing.

In auto racing, the number zero and its close relation, the double zero, are the jokers in the deck. The numbers have never been terribly popular—or successful, for that matter. In over sixty years of competition in NASCAR’s premier series, the 0 and the 00 have only two wins each.

That said, some memorable drivers have raced the naught and the double-naught, if sporadically. Dan Gurney ran the 0 for Holman Moody in two attempts at the Daytona 500 in 1962 and 1963. AJ Foyt ran the 00 on a Ford for Banjo Matthews in 1964 and again for Holman Moody in 1965.

Privateer Delma Cowart actually made the number 0 his own, running the number through the ’80s and ’90s mainly at Daytona and Talladega. More recently, David Reutimann picked up the double-zero’s only two victories driving Toyotas for Michael Waltrip Racing. You’ll find these and other famed zeros in the gallery below.