Daytona 500 (2011-02-20): 15,600,000 average audience, Nielsen (press-attributed), final; published by Wikipedia, 2026-08-27, https://en.wikipedia.org/wiki/List_of_Daytona_500_broadcasters. Via RatingsReference, https://ratingsreference.com/telecast/daytona-500-2011-02-20, accessed 2026-09-15.