09/06/2026
Daytona is the worst race track of William Byron's career. A 21.0 average finish over 18 starts, eight of them DNFs, and a 34.3 percent retirement rate across all superspeedways.
It is also where his win rate is highest, 8.6 percent, ahead of every other kind of track, and he has won the Daytona 500 back to back.
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