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.
The 2018 Cup Series champion from Middletown, Connecticut, led 32 of 267 laps, including the final two, to become the first competitor to secure a Championship 4 spot for the 2022 Cup Series season.