Mason Massey

William Mason Massey IV (born January 24, 1997) is an American professional stock car racing driver. He last competed part-time in the NASCAR Xfinity Series, driving the No. 45 Chevrolet Camaro SS for Alpha Prime Racing and part-time in the NASCAR Craftsman Truck Series, driving the No. 20 Chevrolet Silverado RST for Young's Motorsports. Massey has recorded over 200 feature wins, eleven championships, and ten track records across multiple classes.
Full Name:
William Mason Massey IV
Birthday:
24 January 1997
Birthplace:
Douglasville, Georgia, U.S.
Profession:
Race Car Driver
Gender:
Male
Primary Series:
Notable Achievements:
Youngest pole winner in the Southern All Star Racing Series (Race Win Year 2016), 2012 Alabama 200 Winner
Car Number:
45
Car Model:
Chevrolet Camaro SS

Mason Massey Bio

Early Life and Background

William Mason Massey IV was born on January 24, 1997, in Douglasville, Georgia, United States. Growing up in a region with a rich motorsports culture, Massey was exposed to racing at an early age. His passion for the sport led him to pursue a career in stock car racing, where he would eventually make a name for himself.

Path to NASCAR

Massey began his racing career in the K&N Pro Series East, where he competed in two races in 2014 for DRIVE Technology. His early experiences in the series laid the groundwork for his transition to higher levels of competition. Over the years, he honed his skills and seized opportunities that would lead him to the NASCAR ranks.

Mason Massey Career

Early Career (2014-2019)

Massey made his NASCAR Gander Outdoors Truck Series debut in 2019 at the M&M’s 200 at Iowa Speedway, finishing 22nd after being elevated due to a disqualification of another driver. This marked the beginning of his professional journey in NASCAR, where he would continue to develop his racing craft.

NASCAR Xfinity Series Breakthrough (2020-2023)

In 2020, Massey announced he would drive the No. 99 for B. J. McLeod Motorsports in the NASCAR Xfinity Series, starting with the Boyd Gaming 300 at Las Vegas Motor Speedway. He returned to the series in 2021 for a twelve-race schedule with the same team. In 2022, he joined DGM Racing, where he drove the No. 91 car and achieved a career-best sixth-place finish at the spring Atlanta race. In 2023, he drove five races for SS-Green Light Racing and faced challenges, including a did not qualify (DNQ) for Alpha Prime Racing.

NASCAR Craftsman Truck Series Breakthrough (2019-2025)

Massey made a significant impact in the NASCAR Craftsman Truck Series, where he had his best career finish of eleventh place at Texas Motor Speedway in 2023. He was set to run full-time in 2024 for Young’s Motorsports but parted ways with the team after the Richmond race. His experiences in both series have contributed to his growth as a driver.

Alpha Prime Racing Era (2025-Present)

In 2025, Massey competed part-time in the NASCAR Xfinity Series, driving the No. 45 Chevrolet Camaro SS for Alpha Prime Racing. His performance in the series has been marked by determination and resilience as he continues to seek opportunities for growth and success.

Race Car Driver Style and Strengths

Mason Massey is known for his competitive spirit and adaptability on the track. His experience across various racing series has equipped him with a diverse skill set, allowing him to navigate different racing conditions effectively.

Notable Achievements and Milestones

Massey is recognized as the youngest pole winner in the Southern All Star Racing Series at just 19 years old in 2016. He also won the Alabama 200 in 2012, showcasing his talent early in his career.

Mason Massey Career Wins

Mason Massey has recorded over 200 feature wins across multiple racing classes, along with eleven championships and ten track records. His achievements reflect his dedication and skill in the sport.

Current NASCAR Xfinity Series Highlights

As of 2025, Massey has not yet secured a win in the NASCAR Xfinity Series but continues to compete part-time with Alpha Prime Racing. His journey in the series is marked by consistent participation and a drive to improve.

Previous NASCAR Craftsman Truck Series Achievements

In the NASCAR Craftsman Truck Series, Massey has yet to achieve a win but has shown promise with his best finish of eleventh place in 2023. His experiences in this series contribute to his overall growth as a driver.

Mason Massey Family

Family Background and NASCAR Lineage

Details regarding Mason Massey’s family background and lineage in NASCAR are not publicly available, focusing instead on his individual accomplishments in the sport.

Personal Life

Massey has a stutter, which has been the subject of a short film titled “Dust and Dirt,” showcased at the Sundance Film Festival in 2017. This aspect of his life highlights his resilience and determination both on and off the track.

2025 Season Performance

In the 2025 season, Mason Massey continues to compete part-time in the NASCAR Xfinity Series with Alpha Prime Racing. His performances have been characterized by a commitment to improvement and a focus on achieving better results. As he navigates the challenges of the season, his experiences from previous years will be crucial in shaping his approach and strategy moving forward.