The young Spaniard is taking the ultrarunning world by storm.
Here's the skinny on one of the oldest ultramarathons in the world.
Top contenders will battle the cold, the heat and each other this weekend.
Former Wisconsin Badger will run his first cross country race in five years on Saturday.
Written By: Chris Turner/IAAF Birmingham, UK – Zersenay Tadese of Eritrea is the favorite to win the global road running title for a