There has been exactly ONE NASCAR GN / Cup race held on February 29th.
February 29, 1976 - Carolina 500 at Rockingham
It was a wild one. Bobby Allison took a huge tumble after banging with Cale Yarborough.
And the race was won by - well, who else? - The King!
I know at least a couple of you were there - Thanks to RR's Johnny Boone, Lynn Hughes, Jerry Bushmire, and Billy Kingsley for your contributions!
http://bench-racing.blogspot.com/2012/02/february-29-this-day-in-petty-history.html
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Schaefer: It's not just for racing anymore.
updated by @tmc-chase: 02/28/18 05:29:08PM