The 24-year-old Gragson from Las Vegas, Nevada, led a race-high 43 of 90 laps, including the final 21, to record his third Xfinity victory of 2022 at the Tricky Triangle.
The 28-year-old Hill from Winston, Georgia, led a race-high 73 of 163-scheduled laps en route to his second career victory in the Xfinity circuit at his home track.
The 19-year-old Gibbs from Charlotte, North Carolina, led five of 48 over-scheduled laps as he executed a bold final lap pass on Larson for his eighth Xfinity career victory.