Chiang Mai’s Huay Tung Tao reservoir area in Mae Rim played host on 6th June to the opening day of the 2026 Chiang Mai Spartan Weekend & HH4HR, a globally licensed obstacle race series that draws competitors from across the world to the region’s rugged terrain. Presiding over the starting ceremony was Boonlue Thammatharanuruk, Chiang Mai’s Deputy Governor, who flagged off athletes at the