

(Image: News18 Creative) Ultra-Trail DU Mont-Blanc (UTMB) is a prestigious 100-mile ultra-race that transverses France, Italy and Switzerland around Mont Blanc.

With a cumulative climb and descent of 30,000 feet, including elevations above 14,000 feet, securing a spot through the lottery is a challenge in itself. (Image: News18 Creative) Revered for its steepness and remote terrain, Hardrock covers 100.5 miles in Colorado’s San Juan Mountains. Runners face the brutal central California summer temperatures, including a grueling stretch called the Canyons, with unforgiving climbs and descents. (Image: News18 Creative) The world’s oldest 100-mile race, Western States presents elite competition and scorching heat. Barkley marathons is known for its navigation challenges and is considered one of the hardest and most eccentric races worldwide.
