The 22-year-old Gilliland from Sherrills Ford, North Carolina, spent his final off-weekend period from the NASCAR Cup Series by celebrating a Truck Series victory at Knoxville, Iowa.
The 19-year-old Heim from Marietta, Georgia, prevailed over a late caution, a preferred lane choice and an overtime shootout to claim the first of three Triple Truck Challenge bonuses at Gateway.
Ross Chastain capitalized through two overtime attempts and a late incident involving teammate Carson Hocevar and Ryan Preece to fend off the field and win the North Carolina Education Lottery 200 at Charlotte Motor Speedway on Friday, May 27.
The 22-year-old Smith from Huntington Beach, California, led a race-high 108 of 147 laps and executed an eight-lap dash to the finish for his third Truck victory of 2022.
The 19-year-old Heim from Marietta, Georgia, overtook teammate Chandler Smith on the final lap to notch his first Truck career victory on Atlanta's newly reconfigured surface.
With just one race left before the Championship 4 event at Phoenix International Raceway, Truck Series drivers and teams were vying for the final two spots in the Playoffs.
Grant Enfinger, who was in a must-win situation, held off his ThorSport teammate Ben Rhodes to claim his spot in the Championship 4 by winning the NASCAR Hall of Fame 200.
Grant Enfinger took the checkered flag at Richmond International Raceway for the third time in the 2020 Truck Series season. It was his first victory since Atlanta earlier this season.
