The 31-year-old Hill from Winston, Georgia, led a race-high 78 of 120 laps and persevered through a two-lap shootout to win the O'Reilly opener at Daytona for a fourth time in five years.
The 2021 Cup Series champion from Elk Grove, California, led a race-high 277 of 300-scheduled laps en route to the first Xfinity victory for himself and Hendrick Motorsports at the Last Great Colosseum.
The 30-year-old Hill from Winston, Georgia, led a race-high 146 of 163 laps and fended off late challenges from Justin Allgaier and Aric Almirola during a three-lap shootout to win at Atlanta for the fifth time in six previous starts and notch his third consecutive spring victory at his home track.