The 1963 Daytona 500, the 5th running of the event, was won by Tiny Lund driving a 1963 Ford. Lund drove his number 21 to victory in three hours and 17 minutes. There were 2 cautions flags which slowed the race for 10 laps. Lund filled in for an injured Marvin Panch, who suffered injuries after a crash in a Maserati was driving a Wood Brothers car. The win was Lund's first victory of the season.
^Fleischman, Bill; Al Pearce (2004). "Race Results: 1949-2002; 1960". The Unauthorized NASCAR Fan Guide: 20042004 (10 ed.). 43311 Joy Rd. #414, Canton, MI, 48187: Checkered Flag Press; Visible Ink Press. pp. 225–226 of 576. ISBN0-681-27587-1.