500 Thailand

Join 500 Thailand SECOND EDITION Thailand’s Ultimate Trail Challenge | Pai, Thailand PASSION 500 Thailand returns in 2026 with one of the longest and toughest trail running races in Thailand. Set in the stunning mountains of Pai, this extreme trail event challenges runners to push their limits across rugged ridgelines, breathtaking landscapes, and the cool highland air of northern Thailand. More than a race, it’s a true test of endurance, resilience, and adventure. Whether you’re chasing a personal milestone or seeking Thailand’s most demanding trail running experience, PASSION 500 Thailand is where your journey begins. Are you ready to take on Thailand’s ultimate trail challenge?