Hiroshi Masuoka took an active role in various rally activities for Mitsubishi Motors starting in 1982 and joined RALLIART INC. in 1990.
As a member of the Mitsubishi Motors works team "Team MITSUBISHI RALLIART", he competed in off-road events for many years. In 2002 and 2003, he became the first Japanese driver to win the Dakar Rally for 2 consecutive years.
Champion driver of AXCR 2022, who led Team MITSUBISHI RALLIART to overall victory in its first time competing in AXCR with his careful and precise driving. He has won numerous races since 2012, including the Thailand Super Series, and RAAT Thailand Endurance Championship International. In 2019, he took victories in the Thailand Super Series' Supercar GTC and other competitions.
Finished in 5th place at last year's AXCR 2022, despite suffering from tire puncture trouble. One of Indonesia's top drivers, he has won the Indonesian Sprint Rally Championship in 1997, been an Indonesian Rally Championship winner three years in a row up to 2002, and more. In 2012, he was named brand ambassador for PT Mitsubishi Motors Krama Yudha Sales Indonesia (MMKSI). In 2019 and 2021, he won overall victories at the Indonesian Sprint Rally Championship in a Mitsubishi Xpander.
First participation in a cross country rally from AXCR 2023. At age 18, he got into motor sports through dirt trials. When he was 20, he won his first All Japan Dirt Trial Championship, demonstrating his talents at an early age. As a member of Mitsubishi Motors Works Team, he began taking part in overseas rallies such as the World Rally Championship (WRC) from a young age. In 1999 and 2010, he won the FIA Asia Pacific Rally Championship (APRC). In 2007, he won the Rally Japan in Group N.