NASCAR

Xfinity Series

Heckert debuted in 2016 at New Hampshire Motor Speedway, where he finished twenty sixth, driving for B. J. McLeod Motorsports. Three races later at Watkins Glen International, he recorded his first top twenty finish with a sixteenth.^[6] Running another road course race at Road America, Heckert was running inside the top 20 until contact with James Davison in the final corner of the race relegated him to 29th.^[7] Two years later, Heckert returned to McLeod team, and drove the No. 78 for the team at Chicagoland Speedway, his first Xfinity start on an oval, and the No. 8 at both Watkins Glen International and Road America. He would run the No. 5 (the renumbered No. 8 car from 2018) at Watkins Glen in 2019, where he picked up his career-best 13th place finish, and Mid-Ohio Sports Car Course in the No. 78. In both races, he drove an entry for the team instead of their full-time driver Matt Mills. Heckert returned to BJMM again in 2020, making it his third year in a row and the fourth of the previous five years running at least one of the road course races for the team. His first start of the season came at Road America, where he drove the No. 78 again, replacing the full-time driver of that car, Vinnie Miller.

Sports cars

In 2016, Heckert made the move to the Pirelli World Challenge, crediting simulators such as iRacing for a quick transition from stock cars, which included podium results early on.^[8] By the end of the 2016 season, Heckert had collected multiple victories in the GTS class.^[9] Heckert found overall victory at Virginia International Raceway in 2018 with Lone Star Racing and co-driver Mike Skeen in what was then named the Blancpain GT World Challenge America.^[10]

Cup Series

Heckert made his NASCAR Cup Series debut on February 21, 2021, driving for Live Fast Motorsports in the No. 78 Ford at the Daytona International Speedway road course.^[11]

NASCAR

(key) (Bold – Pole position awarded by qualifying time. Italics – Pole position earned by points standings or practice time. * – Most laps led.)

ARCA Racing Series

(key) (Bold – Pole position awarded by qualifying time. Italics – Pole position earned by points standings or practice time. * – Most laps led.)