Leadville Race Series Run

Name: Leadville Trail Marathon and Heavy Half 2026 – Rated
Start: 2026-06-27T00:00:00-04:00
End: 2026-06-27T23:59:59-04:00
Location: Leadville, Colorado

The Leadville Race Series is a renowned endurance race series that takes place in the historic mining town of Leadville, Colorado. The full series includes prominent mountain biking and trail running events. Our focus here is Leadville Race Series Run (Trail Running Events).

The Leadville Race Series Run is comprised of four iconic trail running races:

The Leadville Trail 100 Run, often referred to as the "Race Across the Sky," is one of the most demanding ultramarathons in the world. The race covers a grueling distance of 100 miles (160.9 kilometers) through the high-altitude terrain of the Colorado Rockies. It’s no surprise that the team at Strambecco considers this event to be one of the Best Trail Running Events in the Rockies.
The Leadville Trail Marathon and Heavy Half is arguably the nation’s toughest and highest-altitude marathon. The route takes trail runners through the historic mining district’s challenging trails to the highest point of any Leadville Race Series event: Mosquito Pass (13,185 feet). As you take on the toughest trails and thinnest air in all of endurance racing, you’ll need all the grit, guts, and determination you can muster. This event is rated by Strambecco as one of the Best Trail Running events in the Rockies.
Silver Rush 50, a unique high-altitude trail running event that is both a component of the LT100 Run Qualification system and a preparation race for anyone who has already qualified for the famed Leadville Trail 100 Run. The team here at Strambecco considers the Silver Rush 50 to be one of the Best Trail Running Events in the Rockies.
Hosted at the Reveille Peak Ranch in Austin, TX, the Austin Rattler Run from Life Time Events is a Leadville Race Series event. The course features a challenging and fun combination of terrain with gorgeous views of the Texas Hill Country.

The Leadville Race Series Run captures the spirit of endurance, perseverance, and adventure. It embodies the essence of trail running, showcasing the beauty of the natural landscape while pushing participants to their physical and mental limits. The races have become legendary among trail runners, creating a strong sense of community and camaraderie among participants who share a deep respect for the challenges and triumphs of these demanding events.

Whether you're a seasoned ultrarunner seeking an epic test of endurance or an adventurous spirit looking to experience the magic of trail running in the mountains, the Leadville Race Series offers unforgettable events that celebrate the indomitable human spirit in the heart of Colorado's rugged wilderness.

The Leadville Race Series is part of Life Time Events, a national producer of events spanning Running, Road, Gravel, and MTB cycling events. The Leadville Race Series MTB consists of several endurance events held throughout the year, with the Leadville Trail 100 MTB being the flagship race. This is considered one of the Best MTB Events in Colorado and the Rockies.