Top 10 Toughest Ultra-Marathons Around the Globe
By Mackenzie Lobby
26.2 miles not challenging enough for you? Here's ten of the toughest ultramarathons in the world.
The marathon is running's most sought-after goal. This is the perfect spot to fill out your marathon race calendar and pick up training tips for future marathon races.
Jason is a USA Track & Field certified coach and creator of Strength Running, a Greatist "Must Read Health & Fitness Blog" of 2013 that hosts over 150,000 monthly readers.