Want to run the Leadville Trail 100 Run presented by La Sportiva? Whether you’re a “Race Across the Sky” first-timer or an old hand, we encourage you to join us in Leadville for an informative look at the country’s most scenic and challenging ultra-run course. Group training runs — both day and night — will familiarize you with key sections of the course. Discussion sessions with race veterans will help you get the most out of your race experience.