Throughout 2008–2012, Mullins would race one-off events atNew Jersey Motorsports Park, scoring a best of fifteenth in 2011.[2]
In 2016, using a car acquired from the defunctYates Racing,[2] Mullins earned a top-ten finish at the season-opener atDaytona International Speedway.[3] He would also run atTalladega and New Jersey, finishing seventeenth and fifteenth respectively.
In 2018, Mullins would score a major upset second-place at the season-opener.[4] He would also run the race atElko, finishing thirteenth.
In 2019, Mullins would finish last at Daytona due to a crash on lap 3.[5] He would run the atCharlotte and the secondPocono race, finishing seventeenth and fourteenth respectively.
In 2020, after scoring a top ten for his team at Daytona, Mullins would partner his team withFast Track Racing for two races.[6] He finished eighteenth at Talladega and eleventh atKentucky.
In 2021, Mullins finished 28th at Daytona with a vibration issue. With equipment bought from the defunctKBR Development,[7] he would score another top-ten finish atElko Speedway.[8] He would also run the race atSalem, finishing twelfth.
In 2022, Mullins would again run three races, finishing fourteenth at Daytona, fifteenth at Talladega, and ninth at Elko.
In 2023, Mullins ran at Daytona and Elko, finishing twentieth and eighth respectively.
In 2024, Mullins would score his first career pole in the season-opener.[9] He would finish 28th after being involved in a crash. He would return for the season finale atToledo, finishing 9th. He was nominated for the 2025 Hoosier Heroes program later that year.[10] He would be named as a winner in December.[11]
Mullins is the owner of Bugsy's Auto Body & Repair, which often sponsors him in his races. He hasducks that live in the pond on his property, and puts duck decals on his cars during races.[13]