Top 25 Races in Wyoming

The Wyoming Range 100-Mile Endurance Run is an elite ultra marathon through the stunning Bridger-Teton National Forest near Hoback, Wyoming. Limited to just 100 runners, this challenging mountain course offers technical terrain, high alpine passes, and breathtaking views of the Wyoming Range. Perfect for experienced ultra runners seeking a remote, low-key adventure that rewards determination with unmatched wilderness solitude.

Test your limits at the Skunk Hollow Sneaker Chase & Backyard Ultra, a intimate 8-miler through the rugged terrain of Casper, Wyoming. This boutique race draws approximately 75 dedicated runners annually, creating an electric atmosphere where every participant matters. Whether you conquer the 8-mile course or push deeper into the Backyard Ultra format, you'll experience the untamed beauty of Wyoming's high desert landscape.

The Cirque Series Targhee transforms Grand Targhee's stunning Wyoming peaks into an unforgettable mountain running arena. With just 71 runners in 2025, this intimate event offers a rare opportunity to tackle high-altitude trails away from crowded courses while connecting with fellow mountain running enthusiasts in one of America's most picturesque alpine settings.

Cowboy Tough Adventure Race pushes the limits of human endurance across Wyoming's rugged terrain. This grueling 50-hour solo challenge covers 100+ miles, demanding advanced navigation skills and complete self-sufficiency in remote landscapes. Limited to approximately 20 elite adventurers, it's the ultimate test for those seeking to conquer the wild frontier on their own terms.

Experience the ultimate test of endurance at the Sloth Polar Plunge, an exclusive marathon in Laramie, Wyoming where just one brave runner takes on frigid temperatures and a polar plunge challenge across 90 miles. This isn't your typical race—it's a solitary battle against the elements designed for the most dedicated cold-weather athletes seeking the road less traveled. Only one runner has conquered this brutal course in 2025, making it perhaps the most exclusive marathon finish in America.

The Sloth Mars Mission (140 Miles) marathon is an ultra-exclusive endurance challenge set in the stunning high desert terrain of Laramie, Wyoming. With only one runner participating in 2025, this race offers a uniquely intimate and unforgettable running experience. Test your limits while exploring Wyoming's dramatic landscapes in what may be the most exclusive marathon in the country.

Run through breathtaking Teton mountain scenery on the Jackson Hole Marathon, where high-altitude challenge meets unforgettable Wyoming views. This iconic race draws adventurous marathoners seeking more than miles—it's a bucket-list experience through one of America's most stunning landscapes. Whether you're chasing a PR or savoring the journey, Jackson Hole delivers.

Experience the spirit of the Wild West on the Cheyenne Frontier Days Marathon, where runners traverse Wyoming's capital city during the world-famous Frontier Days celebration. This flat, scenic course showcases historic downtown Cheyenne and its legendary Western hospitality. Perfect for runners seeking small-town charm with big rodeo atmosphere.

The Bighorn 100 Mile is an epic ultra marathon through Wyoming's rugged Bighorn National Forest, offering runners a grueling test of endurance across remote mountain trails with dramatic canyon views and alpine terrain. Designed for experienced ultrarunners seeking a true backcountry challenge, this point-to-point race rewards perseverance with some of the most pristine wilderness running in North America. Runners traverse over 20,000 feet of elevation gain while navigating high-altitude passes and crystalline mountain streams.

The Grand Targhee 50 Mile is a challenging ultramarathon set in the stunning Teton Range of Alta, Wyoming. This mountain race tests endurance through rugged alpine terrain with breathtaking panoramic views and significant elevation gain. Ideal for experienced trail runners seeking a true high-country adventure in one of America's most scenic mountain environments.

Conquer one of America's most extreme ultra marathons in the stunning badlands of Death Valley, Wyoming. This 50-mile challenge attracts experienced ultra runners seeking to test their limits against dramatic desert landscapes, towering sand dunes, and the raw beauty of the Wyoming wilderness. Whether you're chasing personal records or a bucket-list experience, this race delivers an unforgettable journey through one of the region's most rugged terrains.

The Wyoming Marathon delivers an unforgettable journey through the Equality State's iconic high plains, starting in Casper and treating runners to sweeping prairie views, rolling hills, and the authentic spirit of cowboy country. This point-to-point marathon showcases Wyoming's rugged beauty with wide-open spaces that feel a world away from crowded city races, making it ideal for runners seeking both a challenge and genuine western charm. With fewer participants than major marathons, the Wyoming Marathon offers an intimate racing experience where the finish line feels like a personal victory across wide-open terrain.

Experience the stunning Bear River Trail Race 10K in Evanston, Wyoming, where runners traverse scenic riverside paths with breathtaking mountain views. This trail race offers a perfect blend of natural beauty and challenging terrain, making it ideal for both competitive runners and outdoor enthusiasts seeking an authentic Wyoming running experience. The race showcases the raw beauty of the Bear River corridor, creating an unforgettable journey through one of the state's most picturesque landscapes.

Experience the rugged beauty of Wyoming at the Pilot Hill 25k, a thrilling 10K race through Laramie's stunning mountain terrain. This race offers runners a challenging yet rewarding course that showcases the high plains and rolling hills of the Equality State. Whether you're a seasoned trail runner or seeking your next PR, Pilot Hill delivers an authentic Wyoming running adventure.

Celebrate Independence Day in Wyoming's capital with the Cheyenne Firecracker 5K and 10K, a festive run through historic downtown Cheyenne. Whether you're a competitive runner chasing a personal best or a family looking for a memorable Fourth of July tradition, this race delivers with flat, fast courses and that unmistakable Wyoming western charm. The race offers both distances, making it perfect for runners of all skill levels eager to kick off their holiday weekend in style.

The Silent Trails Memorial Race is a meaningful 10-mile trail run through the stunning Wyoming mountains near Laramie, honoring fallen heroes with every step. This memorial race offers runners a chance to connect with nature while paying tribute to those who have served, making it a unique and emotionally rewarding racing experience. Perfect for trail runners seeking both a challenging course and an opportunity to participate in something deeper than a typical race.

Tackle the rugged beauty of Wyoming's backcountry at the Trail Mix Run in Casper. This challenging 10-mile and 3-mile trail run winds through scenic terrain perfect for runners seeking adventure off the beaten path. Whether you're a seasoned trail runner or newcomer, Trail Mix Run offers an unforgettable test of endurance with small-town Wyoming hospitality.

This 10m, 5m run in Sheridan, WY, organized by AMNACS Ruck Race, amnacs ruck race It's a solid choice for runners of all levels looking for a 10m, 5m run in the Sheridan, WY area.

This 12 hrs in Casper, WY, organized by Night Crawler Endurance Challenge, night crawler endurance challenge. It's a solid choice for runners of all levels looking for a 12 hrs in the Casper, WY area.

Push your limits at the Laramie Peak Endurance Challenge, a grueling 12-hour test of ultra-endurance set in the rugged Wyoming terrain near Douglas. This event challenges runners to cover as much distance as possible within 12 hours, making it ideal for experienced ultra runners seeking to qualify for major events or test their personal limits. Participants will experience the stunning high plains landscape while competing against the clock in one of the most demanding single-day endurance events in the region.

Experience the thrill of mountain biking through Wyoming's stunning backcountry with The Drift 28 & 13's 13-mile bike course departing from Pinedale. This scenic challenge winds along rugged trails with sweeping views of the Wind River Range, offering riders an unforgettable taste of Western adventure. Perfect for intermediate to advanced cyclists seeking a memorable ride through one of Wyoming's most picturesque landscapes.

Experience Wyoming's breathtaking Star Valley on two wheels... er, feet! The Star Valley Half Marathon sweeps through Afton's stunning landscapes, offering runners a choice between the challenging 13.1K half marathon or a scenic 5K. With crisp mountain air, friendly locals, and small-town Wyoming charm, this race delivers an unforgettable running experience for every skill level.

This 13.1m, 10k, 1m run in Pinedale, WY, organized by Race to Raise, race to raise. It's a solid choice for runners of all levels looking for a 13.1m, 10k, 1m run in the Pinedale, WY area.

Lace up for the T-Bird Trek in Casper, Wyoming, where runners can choose from a half marathon, 10K, or 5K through stunning high desert terrain. This versatile event welcomes everyone from seasoned marathoners to first-time 5K participants. Experience the camaraderie of Wyoming's running community while tackling courses that showcase the Equality State's rugged beauty.

Ranked #25 in the 2025 Top 100 list with N/A registrations.