Parker Martin began racing in 2015 in the Jr. Enduro class at Cochran Motor Speedway (Cochran, Georgia). He finished second in points that year and won four races, which included his top-career win: the Georgia Showdown. In 2016 he went on to win the Jr. Enduro Points Championship and won eight races.
In late spring of 2017 Parker started getting the itch to run Late Models. In May of that year he made his debut in a 2014 Barry Wright Chassis. He showed that he could compete with the big boys and had some very good runs.
In 2018 Parker started traveling with the Durrence Layne Chevrolet Touring Series on a limited schedule and also competed in the VP Young Guns Rookie of the Year points, where he finished fourth in the final standings.
Parker has competed in some of the most prestigious events across the Southeast. The most memorable finish in his Late Model career came at East Alabama Motor Speedway (Phenix City, Alabama) during the Alabama State Race in 2018. He qualified on the outside pole and finished fourth. After a football injury in the late fall of 2018 Parker was forced to sit out for the reminder of the season.