The 22-year-old Heim from Marietta, Georgia, led a race-high 42 of 134 laps and persevered through an early pit road speeding penalty and two rain delays to notch his second Truck victory of 2025 in Sin City.
The 19-year-old Day from Clovis, California, posted a qualifying lap at 177.702 mph in 30.388 seconds to notch his first Truck Series career pole in Sin City.
The Abingdon, Virgnia-based organization will next field the No. 75 entry at Bristol and Rockingham in April before returning at North Wilkesboro and Charlotte in May, Indianapolis in July, Bristol in September and at the Charlotte Roval and Talladega in October.
The two-time Cup Series champion from Las Vegas, Nevada, led a race-high 80 of 135 laps and edged Stewart Friesen by 0.017 seconds to score his eighth Truck victory at Atlanta and the 67th of his overall career.
The 26-year-old Mosack from Charlotte, North Carolina, achieved his first Truck Series career pole position for Saturday's event at Atlanta with a pole-winning qualifying lap at 173.418 mph in 31.969 seconds.
The National Motorsports Appeal Panel upheld the lone appeal attempt of Parker Kligerman and Henderson Motorsports' victory-turned-disqualification at Daytona overturned.
The two-time Cup Series champion from Las Vegas, Nevada, will pursue an eighth Truck victory at Atlanta in his first of five-scheduled series' starts with Spire Motorsports this Saturday, February 22.
The 2022 CARS Pro Late Model Tour champion from Wausau, Wisconsin, will pilot ThorSport's No. 66 Ford entry for multiple Truck events in 2025, beginning at Atlanta Motor Speedway.
The 22-year-old Heim from Marietta, Georgia, was declared the official winner of the 2025 Truck Series' season-opening event at Daytona after initial winner Kligerman was disqualified due to his race-winning entry failing the post-race inspection process for being too low in the rear heights.