Leadville Race Series Run
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.
Leadville 10K Run 2025 – Rated
Leadville, Colorado Leadville, CO, United StatesLast updated April 4, 2025 -- Nestled in the heart of Colorado's Rocky Mountains, the Leadville 10K Run 2025, produced by Life Time Events, offers an extraordinary opportunity for trail running enthusiasts to experience the magic of the Leadville Race Series in a less intimidating event, covering the first and final sections of the iconic…
Leadville Trail 100 Run 2025 – Rated
Leadville, Colorado Leadville, CO, United StatesLast updated April 4, 2025 -- In the heart of the Colorado Rockies lies an event that embodies the essence of endurance, tenacity, and the indomitable spirit of trail running - the penultimate Leadville Trail 100 Run 2025, also known as "Race Across the Sky". The LT100 is the original event of the Leadville Race…
Austin Rattler Run 2025 – Rated
Austin, Texas Austin, TX, United StatesLast updated May 14, 2025 Hosted at the Reveille Peak Ranch in Austin, TX, the Austin Rattler Run 2025 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. Offering three race options focused around a 10-mile…
Leadville Trail 100 Run Camp 2026 – Rated
Leadville, Colorado Leadville, CO, United StatesLast updated July 5, 2025 The 2026 event has not been confirmed yet... Leadville Trail 100 Run Camp 2026 is a perfect way to kick off the summer and practice for all trail running events in Leadville Race Series. This is truly an experience that is open to all runners and offers an introduction to the…
Leadville Trail Marathon and Heavy Half 2026 – Rated
Leadville, Colorado Leadville, CO, United StatesLast updated July 11, 2025 The 2026 event has not been confirmed yet... The Leadville Trail Marathon and Heavy Half 2026 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…