Leadville Trail 100 Mile Run

The Leadville Trail 100 Mile Run, known as the "Race Across the Sky," is a prestigious ultramarathon held annually in Leadville, Colorado. Established in 1983, this grueling event challenges participants with a 100-mile out-and-back course that features extreme elevation changes, including a peak at 12,600 feet. Runners face over 18,000 feet of elevation gain while navigating rugged terrain, making it one of the most iconic endurance races globally.

The event not only tests physical limits but also celebrates the spirit of determination and grit, with finishers earning coveted belt buckles based on their completion times. Visit the organization's website for the most recent information.