Mason Massey Bio
William Mason Massey IV, known professionally as Mason Massey, is an American professional stock car racing driver born on January 24, 1997, in Douglasville, Georgia. 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. Across multiple racing classes, Massey has recorded more than 200 feature wins, eleven championships, and ten track records, establishing himself as one of the most accomplished short-track racers of his generation.
Early Life and Background
Mason Massey was born and raised in Douglasville, Georgia, a community west of Atlanta with a deep tradition of grassroots racing. Growing up in the region, he was surrounded by dirt tracks and short ovals, which helped shape his early interest in stock car competition. He has spoken publicly about living with a stutter, an experience that was highlighted in a 2017 short film titled “Dust and Dirt,” which was showcased at the Sundance Film Festival.
From a young age, Massey focused on crate late models and other entry-level stock car classes, racking up wins at regional short tracks across the southeastern United States. His success in those developmental divisions laid the foundation for a move into NASCAR’s regional and national touring series. By his mid-teens, he had already built a reputation as a polished short-track racer, and that momentum carried him into the upper levels of the sport.
Path to NASCAR
Massey first appeared on a NASCAR national series radar in 2014, when he competed in two NASCAR K&N Pro Series East races for DRIVE Technology. The experience gave him a taste of NASCAR-sanctioned competition and helped him prepare for bigger opportunities. He also entered the ARCA Menards Series East that same year, making his first start at Langley Speedway and running a second event at Columbus.
As he continued to win on dirt and pavement across the South, Massey earned the title of youngest pole winner in the Southern All Star Racing Series in 2016. He also scored a marquee victory in the 2012 Alabama 200, one of the most prestigious late model events in the country. These results opened the door to the NASCAR Gander Outdoors Truck Series, where he made his national series debut in 2019 at Iowa Speedway.
Mason Massey Career
Early Career
Massey’s early career was built primarily on dirt and short-track pavement racing, where he piled up more than 200 feature wins, eleven championships, and ten track records. His victory in the 2012 Alabama 200 announced him as a rising star in the Late Model ranks, and his 2016 Southern All Star Racing Series pole made national headlines. He balanced this regional dominance with occasional NASCAR development starts, gaining experience in the K&N Pro Series East and the ARCA Menards Series East during 2014.
NASCAR Craftsman Truck Series Breakthrough
Massey made his NASCAR Craftsman Truck Series debut in the 2019 M&M’s 200 at Iowa Speedway, where he crossed the line 22nd before being elevated one position following the disqualification of Ross Chastain. He was scheduled to run the full Truck Series schedule in 2023 with Reaume Brothers Racing in the No. 33 Ford F-150, but he parted ways with the team seven races into the season. His best Truck Series result came on April 1, 2023, at Texas Motor Speedway in the SpeedyCash.com 250, where he finished eleventh.
In February 2024, it was announced that Massey would return to the Truck Series full-time, this time driving the No. 02 truck for Young’s Motorsports. He later parted ways with that organization after the race at Richmond. Most recently, he has been paired with the No. 20 entry, continuing to build his presence in the Craftsman Truck Series.
NASCAR Xfinity Series Breakthrough
On January 28, 2020, it was announced that Massey would drive the No. 99 for B. J. McLeod Motorsports for part of the 2020 NASCAR Xfinity Series season, with his first start coming at Las Vegas Motor Speedway. Following the 2020 Xfinity season, he returned to a familiar venue and won the dirt crate late model feature at Senoia Raceway’s Fall Nationals. He rejoined B. J. McLeod Motorsports and the No. 99 team on a twelve-race Xfinity schedule in 2021.
In 2022, Massey moved to DGM Racing to drive the No. 91 for every oval race, and he earned a career-best sixth-place finish at the spring Atlanta event. He also competed for SS-Green Light Racing in 2023 and recorded a did-not-qualify attempt for Alpha Prime Racing during that same year. In 2025, Massey returned to the Xfinity Series part-time with Alpha Prime Racing, driving the No. 45 Chevrolet Camaro SS. His Xfinity résumé now includes his debut at Las Vegas in 2020 and his most recent start at the 2025 Focused Health 302 in Las Vegas, with a best series finish of 28th in 2022.
ARCA Menards Series West Era
On January 13, 2026, it was announced that Massey would drive full-time in the ARCA Menards Series West, piloting the No. 19 Chevrolet for Bill McAnally Racing. The move represents a return to a developmental series as he expands his program across multiple national platforms.
Driving Style and Strengths
Massey’s background on dirt and short ovals has shaped him into a driver who excels in tight, abrasive racing conditions. His short-track instincts help him fight for position in traffic, and his regional experience has made him a strong qualifier, as evidenced by his record-setting Southern All Star Racing Series pole in 2016. Working with Alpha Prime Racing and Young’s Motorsports, he has continued to refine his race craft and strategy on the national stage.
Notable Races and Milestones
Among his most memorable results are the 2012 Alabama 200 win, his Truck Series career-best eleventh-place run at Texas Motor Speedway in 2023, and his Xfinity career-best sixth-place finish at Atlanta in 2022. His debut in the NASCAR Craftsman Truck Series at Iowa Speedway in 2019 and his first NASCAR Xfinity Series start at Las Vegas in 2020 also stand out as important career milestones.
Mason Massey Career Wins
Across all levels of stock car racing, Mason Massey has built a well-rounded résumé, highlighted by regional short-track success and a growing national series presence. His wins span late model events, dirt features, and ARCA Menards Series West competition, with his most recent series victory coming in the ARCA Menards Series West.
ARCA Menards Series West Highlights
Massey competes full-time in the ARCA Menards Series West, driving the No. 19 Chevrolet for Bill McAnally Racing. He has earned one series win and five top-ten finishes, with his first West victory coming at the Oil Workers 150 presented by the West Coast Stock Car Motorsports Hall of Fame in Bakersfield.
Other Wins and Performances
In the NASCAR Craftsman Truck Series, Massey has made numerous starts, with a best career finish of eleventh at Texas Motor Speedway in 2023. In the NASCAR Xfinity Series, he has recorded three top-ten finishes, a best series result of 28th in 2022, and a career-best race finish of sixth at Atlanta in 2022. In the ARCA Menards Series, he has earned one top-ten finish. In the ARCA Menards Series East in 2014, he finished 45th in the standings after two starts.
Mason Massey Family
Family Background and Racing Lineage
Mason Massey was raised in Douglasville, Georgia, where he developed his early passion for racing. He carries the name William Mason Massey IV, reflecting a family lineage tied to the Douglasville community.
Personal Life
Outside of racing, Massey has openly discussed living with a stutter, an experience that was the subject of the 2017 short film “Dust and Dirt,” showcased at the Sundance Film Festival. He has continued to use his platform to raise awareness about speech differences in the motorsports community.
2025 Season Performance
Mason Massey’s 2025 season has been split between the NASCAR Xfinity Series and the NASCAR Craftsman Truck Series, both on a part-time schedule. In the Xfinity Series, he is driving the No. 45 Chevrolet Camaro SS for Alpha Prime Racing, with his most recent start coming at the Focused Health 302 in Las Vegas. His current Xfinity Series points position is 38th, reflecting a campaign focused on gaining seat time and building chemistry with the team.
In the NASCAR Craftsman Truck Series, Massey has been paired with the No. 20 Chevrolet Silverado RST for Young’s Motorsports, with his latest start coming in the EJP 175 at New Hampshire. He sits 99th in the current Truck Series standings, a result of limited starts as the program continues to take shape. Despite the part-time schedule, he has remained consistent in working toward stronger results in both series.
Looking ahead, Massey is also set to expand his program into the ARCA Menards Series West with Bill McAnally Racing beginning in 2026, giving him a full-time competitive home at the regional level. The multi-series plan positions him to refine his skills on a wider variety of tracks while building toward future opportunities at the top levels of NASCAR. With his extensive short-track résumé and growing national series experience, the 2025 season represents a transitional year focused on development and long-term growth.
