Top 5 100 Mile Ultra Races in the US
The USA is home to some of the most exhilarating 100 mile races in the world. Covering West Coast, East Coast, desert and mountains, we round up the top 5 ultra races in the USA.
Exploring the Ultimate 100-Mile Ultramarathons in the US in 2024: Your Guide to Dates, Distances, and Terrains!
Greetings, fellow running enthusiasts and adventure seekers! Let’s dive into the thrilling world of ultra races in the USA for the year 2024. Gear up for an expedition beyond mere distances as we uncover the diverse and challenging terrains that make each race extraordinary. Let’s jump right in:
Western States Endurance Run (June 2025)
Probably one of the most well-known ultra marathons in the US, Western states has been known to attract elite competitors and the biggest names in the sport. One thing that makes this ultramarathon so special is the incredibly diverse landscape including rugged mountain trails, beautiful forests, and stunning views of the Sierra Nevada. This variety makes for a challenging yet rewarding experience. The significance of this race dates all the way back to 1974 when it was first established, and a reason why it is on many ultramarathon runners’ bucket list.
Leadville Trail 100 Run (August 2025)
The Leadville trail 100 also provides the iconic challenge of a race across the Colorado Rockies with high-altitude sections, stunning scenery, and diverse terrain, including dirt roads and technical trails. The Leadville trail 100 also acts as a qualifier ultra for the Western states 100 which adds to the incentive for many runners. The adventure of the Leadville trail 100 ultramarathon is an incredible challenge, with the chance to visit the highest city in North America of Leadville.
Hardrock 100 (July 2025)
Hardrock 100 lives up to its name with its incredible terrain, taking runners through the rugged San Juan Mountains of Colorado, featuring challenging elevation gains, technical trails, and breathtaking views. With an average altitude of over 11,000 feet, it’s both a physical and mental test. The remote and challenging terrain make it a coveted ultra marathon, with elite ultramarathon runners looking to make their mark. Runners from around the world are drawn to the Hardrock 100 which is what makes the comradery even more special when runners acknowledge the challenge they are about to face together.
Tahoe Rim Trail (July 2025)
The Tahoe Rim Trail 100 moves us East of the Rockies, but the scenery and terrain remains as stunning as the last. The testing terrain makes this ultramarathon a challenge for any runner, but with a variety of distances provided it does open itself to more beginner runners which means the event experiences a huge gathering of ultramarathon runners.
Grindstone 100 (September 2025)
The Grindstone is a 100 mile race in Virginia’s beautiful Blue Ridge Mountains. It is known as one of the hardest races on the East Coast with technical climbs, ridges, peaks and valleys; but the mental and physical test of the course is accompanied by spectacular views and scenery throughout the course. Whether you’re an experienced ultrarunner or looking to tackle your first 100-mile race, Grindstone 100 offers a rewarding experience filled with camaraderie, personal achievement, and stunning natural beauty.
Ultra X Nevada
Although not a 100 miler, Ultra X Nevada is a 220km journey taking in breath-taking landscapes and unforgettable canyons. Come and join us for our first iteration in 2024!
There you have it – a guide to the top 100-mile ultramarathons in the US for 2024. Strap on those running shoes, sign up, and get ready for an adventure that transcends mere races – it’s a story unfolding through landscapes and personal triumphs!
Want to see more incredible ultra marathons from every continent? Recently, we listed the: