The 25-year-old Byron from Charlotte, North Carolina, led the final 20 of 185-shortened laps in an event where he rallied from losing a lap by implementing a late pit strategic call to race his way to the front and claim his fourth Cup victory of the season in a rain-shortened event in the Peach State.
The three-time Supercars champion from Auckland, New Zealand, led nine of 78 over-scheduled laps and fended off the field in overtime to record the first victory for Trackhouse Racing's Project 91 program and become the first competitor in 60 years to win in NASCAR debut.
The 30-year-old Chastain from Alva, Florida, led a race-high 99 of 300-scheduled laps, including the final 34, en route to his first Cup victory of 2023 in Music City.
Kyle Busch won Stage 2 at Sonoma but couldn't catch Martin Truex Jr. late and settled for the runner-up spot.
"I thought I could catch Martin," Busch said. "I gave it my best shot. There's nothing like a charge in 'Wine Country,' except for maybe a 'charge' in 'Tequila Country.'"
The 2017 Cup Series champion from Mayetta, New Jersey, led a race-high 51 of 110-scheduled laps and capitalized on a 15-lap dash to the finish to fend off Kyle Busch to claim his fourth Cup triumph in Sonoma, California.
The 29-year-old Blaney from High Point, North Carolina, led a race-high 163 of 400 laps and withstood trials and challenges from Mother Nature to the on-track chaos to snap a 59-race winless drought in NASCAR's longest event on the schedule.
The 2021 Cup Series champion from Elk Grove, California, led a race-high 138 of 252 over-scheduled laps and prevailed in overtime to win in the series' return to North Wilkesboro Speedway.
William Byron was in the right place at the right time at Darlington Raceway and took advantage of the opportunity to score his third NASCAR Cup Series win of the season in overtime at the track "Too Tough to Tame."