Discovering the Lean Horse 100: A Comprehensive Guide
The Lean Horse 100 is an ultra-marathon that has been capturing the hearts of endurance runners since its inception in 2013. Held annually in the scenic Black Hills of South Dakota, this challenging yet rewarding event offers a unique blend of rugged terrain, stunning landscapes, and a supportive community. Let's delve into the world of the Lean Horse 100, exploring its history, course, and what makes it a standout event in the world of ultra-running.
History and Background
The Lean Horse 100 was founded by ultra-runner and race director, Mike Palmer, with the aim of providing a challenging and enjoyable ultra-marathon experience in the beautiful Black Hills. The race has since grown in popularity, attracting runners from across the United States and beyond, eager to test their mettle against the demanding course.
The Course: A Tale of Two Loops
The Lean Horse 100 is a single-loop, out-and-back course that covers a distance of 100 miles. The race begins and ends in the charming town of Custer, South Dakota, with runners traversing through the picturesque Black Hills National Forest. The course is known for its diverse terrain, including steep climbs, technical descents, and rolling hills, totaling an elevation gain of over 13,000 feet.

Key Checkpoints and Elevation Profile
| Checkpoint | Mile | Elevation (ft) |
|---|---|---|
| Start/Finish | 0 | 5,000 |
| Harney Peak | 21 | 7,242 |
| Pringle | 50 | 5,500 |
| Turnaround (Pringle) | 50.5 | 5,500 |
| Harney Peak | 79 | 7,242 |
| Finish | 100 | 5,000 |
The Lean Horse 100 Experience
Participating in the Lean Horse 100 is more than just a race; it's an immersive experience that fosters a sense of camaraderie among runners. The event is known for its excellent aid station support, with volunteers providing encouragement and assistance throughout the course. Additionally, the race offers a unique opportunity to explore the stunning Black Hills, with runners passing through iconic landmarks such as Mount Rushmore and Crazy Horse Memorial.
Training and Preparation
Tackling the Lean Horse 100 requires a solid foundation of fitness, experience in long-distance running, and a well-structured training plan. Runners should focus on building endurance, strength, and agility, incorporating hill repeats, long runs, and back-to-back training days into their regimen. Proper nutrition, hydration, and recovery strategies are also crucial for success in this demanding event.
Why Run the Lean Horse 100?
The Lean Horse 100 offers runners a unique combination of challenge, beauty, and community. The course's diverse terrain and stunning landscapes provide a constant source of inspiration and motivation, while the supportive atmosphere fosters a sense of belonging among participants. By pushing their limits and conquering the Lean Horse 100, runners earn not only a coveted finisher's buckle but also a profound sense of accomplishment and personal growth.
























