William Byron took charge early and dominated in the Hendrick Motorsports No. 24 Chevrolet, winning the Go Bowling At The Glen, his fifth win of the year.
The 2015 Xfinity Series champion from Prosper, Texas, led a race-high 52 of 200 laps and outlasted a one-day rain delay period to fend off Truex and notch his second consecutive Cup victory in recent weeks at the Irish Hills.
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 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.'"
Kyle Larson headlines a growing list of Cup and Xfinity Series competitors who will be pulling double duty efforts between the ARCA Menards Series West, Xfinity and Cup weekend events in Sonoma, California.
