The 24-year-old Byron from Charlotte, North Carolina, led a race-high 212 of 403 and fended off Joey Logano during an overtime shootout to repeat as a Cup winner at the Paperclip-shaped short track.
Denny Hamlin passed William Byron with five laps remaining and held off Kevin Harvick to win the Toyota Owners 400 Richmond. It was Hamlin's first win of the year as well as his first top 10 of the year.
The three-time Daytona 500 champion from Chesterfield, Virginia, fended off Kevin Harvick in the final five laps to notch a breakthrough victory at his home track.
This weekend the NASCAR Cup Series and the Xfinity Series head to Richmond Raceway where the Next Gen car will make its debut on the first points-paying short track race of the season.
The Alva, Florida, native bumped AJ Allmendinger and Alex Bowman out of the racing groove on the final lap to earn the first win in NASCAR's premier series for himself and Trackhouse Racing in Austin.
