The Fourth edition of the Clark Ultramarathon, a premier ultra-marathon event in the Philippines, is set to take off between 8th and 9th September 2018 at the Clark Freeport Zone.

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.

The Clark Ultramarathon aims to gather beginner, aspiring, top and veteran ultramarathoners in a journey to inspire each other to go beyond their limits.