William Byron is a two-time Daytona 500 champion. Byron survived a last-lap crash that took out the other leaders in the front pack, then outlasted Tyler Reddick to the checkered flag to win on Sunday. Austin Cindric and Team Penske dominated the first 450 miles, but three separate multi-car crashes whittled the field down.

Last year: Daniel Suarez edged Ryan Blaney and Kyle Busch in a three-wide finish. There were 10 cautions and an Atlanta-record 47 lead changes, alongside a pileup of at least 16 cars, the biggest in the history of Atlanta Motor Speedway. Last race: William Byron captured his second Daytona 500 win while narrowly avoiding a final-lap crash.

To help you sort out all the possibilities for this year’s season-opening NASCAR Cup Series points race, here’s your day-of guide.