Chiang Mai Beast 21K - Saturday, September 27th 2025

Half Marathon |  30 Obstacles | 3 Hours Fastest Time

If you're looking to unleash your inner beast and go to places you never imaged, the Spartan Beast is perfect for you. With a half marathon and 30 obstacles between you and the finish line, the Spartan Beast will test everything you're made of: your strength, your endurance, your resolve. The unpredictable terrain and Spartan Obstacles are masterfully designed to push you deep into your discomfort zone, and well past those self-imposed obstacles you once considered your limits. Beast mode: on.