The 25-year-old Byron from Charlotte, North Carolina, led 64 of 317 over-scheduled laps and prevailed in two late-race restarts, including one in overtime, to fend off teammate Kyle Larson and nab second consecutive Cup victory in the desert valley.
William Byron won Stages 1 and 2 on his way to the win at Las Vegas. A quick final pit stop put him ahead and with two fresh tires, he passed Martin Truex, Jr. for the lead with two laps to go.
The reigning two-time Cup Series champion from Middletown, Connecticut, led the final 29 laps and edged Bell in a photo finish to win the first of two Duel events at Daytona.
Ross Chastain blasted his way into the championship round, pinning his No. 1 Chevy to the outside all and rocketing his way past Denny Hamlin for the fourth and final playoff spot.
The 27-year-old Bell from Norman, Oklahoma and the 29-year-old Chastain from Alva, Florida, both captured Championship 4 spots following a dramatic finish in the Paper Clip venue.
The 2021 Cup Series champion from Elk Grove, California, led a race-high 199 of 267-scheduled laps en route to his third Cup victory of 2022 and first at Miami.