Clark Ultramarathon is the premier ultramarathon event in the Philippines. It aims to be an annual event that will provide a venue for runners who wish to harness their own energy in the sports of ultramarathon.

Cardimax - Clark Ultramarathon, a premier ultra-marathon event in the Philippines, is set to take off between 3rd and 4thSeptember, 2016 at the Clark Freeport Zone.