Michael Mosiman Bio
Early Life and Background
Michael Mosiman was born on July 16, 1999, in Sebastopol, California, USA. Growing up in a family that embraced motorsports, he was introduced to motocross at a young age, following in the footsteps of his older brother, Josh Mosiman, who also pursued a career in racing. This early exposure laid the groundwork for Michael’s passion for the sport, leading him to compete in various amateur competitions.
Mosiman progressed through the ranks of the American amateur motocross system, where he formed part of the Rockstar Suzuki Amateur Team. His notable performances included a third-place finish in the Supermini class at the Monster Cup in 2013, showcasing his potential as a future professional racer.
Path to AMA Motocross and Supercross
Michael Mosiman made his professional debut in the 2017 AMA National Motocross Championship, racing for the Rockstar Energy Husqvarna Factory Racing team. He quickly adapted to the 250 class, finishing eighth overall in his second round, although a shoulder injury sidelined him for the remainder of the season. In 2018, he made his supercross debut in the 250SX East class but faced challenges, including a concussion that caused him to miss the first two rounds.
Despite these setbacks, Mosiman’s determination shone through as he finished eleventh in the 2018 AMA National Motocross Championship. His breakthrough came in 2019, where he achieved his first podium finish in the AMA National Motocross Championship and continued to improve his standings in both supercross and motocross events.
Michael Mosiman Career
Early Career (2017-2019)
Mosiman’s early career was marked by a series of ups and downs. After debuting in 2017, he faced injuries that limited his participation in subsequent seasons. However, by 2019, he had established himself as a competitive rider, finishing sixth in the final standings of the 250SX West class and earning his first podium at the Thunder Valley round of the AMA National Motocross Championship.
His progress continued in the 2020 season, where he finished fifth in the 250SX West class, although a practice crash sidelined him for the entire outdoor motocross season.
AMA Supercross Breakthrough (2022)
The 2022 season marked a significant turning point for Mosiman. Competing in the 250SX West class, he secured his first supercross victory at the San Diego round, leading every lap of the main event. This win was a highlight of his career, demonstrating his potential as a top competitor in the series. Throughout the season, he maintained strong performances, finishing third in the overall standings.
In addition to his supercross success, Mosiman also achieved his first outdoor race win in the 2022 AMA National Motocross Championship, further solidifying his reputation as a rising star in the sport. However, injuries plagued the latter part of the season, impacting his overall performance.
Monster Energy Star Racing Yamaha Era (2024-Present)
In 2024, Mosiman signed with Monster Energy Star Racing Yamaha on a multi-year deal, aiming to revitalize his career after a series of injuries. Unfortunately, a crash prior to the opening round resulted in neck fractures, leading him to contemplate retirement. However, after receiving medical clearance, he made a surprising return to competition in the 2025 AMA Supercross Championship.
In his comeback season, Mosiman showcased resilience by scoring a podium finish at the fifth round in Arlington, Texas, and finishing seventh in the final standings. He also managed to secure a podium in the 2025 AMA National Motocross Championship, although injuries continued to challenge his season.
Motorcycle Racer Style and Strengths
Mosiman is known for his aggressive riding style and technical skills on the track. His ability to adapt to different racing conditions and his strategic approach to racing have contributed to his success in both supercross and motocross events.
Notable Achievements and Milestones
Michael Mosiman’s career highlights include his victory at the 2022 AMA Supercross Championship in San Diego and his first outdoor race win in the same year. His journey through injuries and comebacks has also made him a notable figure in the motocross community.
Michael Mosiman Career Wins
Michael Mosiman has achieved significant milestones in his racing career, including a notable victory in the AMA Supercross Championship and multiple podium finishes in the AMA National Motocross Championship.
Current AMA Supercross Series Highlights
As of 2025, Mosiman has secured one victory in the AMA Supercross Championship and has consistently placed within the top ranks of the series. His first win in 2022 at San Diego marked a pivotal moment in his career, and he continues to strive for further success.
Previous AMA National Motocross Series Achievements
In the 2022 AMA National Motocross Championship, Mosiman achieved one race win and multiple podium finishes, showcasing his talent and competitiveness in the outdoor series. His performance has positioned him as a formidable contender in future seasons.
Michael Mosiman Family
Family Background and AMA Lineage
Michael Mosiman comes from a family with a strong connection to motocross, with his older brother, Josh Mosiman, also competing at a professional level. This familial bond has played a significant role in shaping Michael’s career and passion for the sport.
Personal Life
Details about Michael Mosiman’s personal life remain private, with a focus primarily on his professional career and achievements in motocross and supercross.
2025 Season Performance
The 2025 season has been a year of resilience for Michael Mosiman. After returning from a serious neck injury, he has shown determination and skill in the AMA Supercross Championship. His podium finish in Arlington is a testament to his hard work and dedication. However, the season has not been without challenges, as he faced another injury that impacted his performance in the AMA National Motocross Championship. Despite these setbacks, Mosiman remains focused on competing at a high level and aims to build on his successes in the upcoming races.
