Inthanon Challenge

Conquer one of Thailand's most legendary mountain ascents at the epic Inthanon Challenge #17 on February 8, 2026. This iconic 48-kilometer cycling race dares you to climb from the base of Highway 1009 all the way to the summit of Doi Inthanon, the country's highest peak. Choose your challenge between the competitive 'Race' category for podium glory or the 'Challenge' category for a deeply personal victory against the mountain. Feel the incredible atmosphere of a mass-participation event where thousands share the singular goal of reaching the sky.

Experience unparalleled support with well-stocked aid stations, mechanical services, and professional photography capturing your journey through breathtaking highland scenery. The event fosters a powerful sense of community, even offering an option to donate in support of the forest rangers who protect these sacred mountains. Earn a coveted finisher's medal, a commemorative jersey, and the immense pride of joining an elite group who have tamed this formidable climb. With categories for all ages and abilities, it's a test of endurance that celebrates every participant's spirit. Secure your limited spot for the ultimate Thai cycling adventure, where every pedal stroke writes your name into the history of this legendary climb.