Tunnel Light Marathon
The Tunnel Light Marathon is a fast, USATF-certified Boston Qualifier featuring a unique 2.4-mile segment through a dark mountain tunnel and a scenic downhill finish. Course Highlights The Tunnel Light Marathon offers a unique and breathtaking course that takes runners through the heart of the Cascade Mountains. The undisputed highlight of the race is the Snoqualmie Tunnel, a 2.4-mile stretch of absolute darkness that begins shortly after the halfway point. Runners are required to carry a headlamp or light source to navigate
Antarctica Marathon
The Antarctica Marathon is a bucket-list race held on King George Island, where participants run on gravel roads connecting international research stations amidst spectacular glacial scenery. Course Highlights The Antarctica Marathon takes place on King George Island, the largest of the South Shetland Islands, situated just off the coast of the Antarctic Peninsula. The course is a unique and challenging out-and-back route that traverses a series of hilly, non-paved gravel roads. These paths connect the international scientific research stations of several nations,
TCS Lidingöloppet
TCS Lidingöloppet is the world's largest cross-country race, held annually on the island of Lidingö, Sweden, and is a key part of the Swedish Classic circuit. Course Highlights The Lidingöloppet course is legendary for its hilly and demanding terrain, winding through the scenic forests and coastal landscapes of Lidingö island near Stockholm. The signature 30 km route is a true test of endurance, featuring the infamous "Abborrbacken" (Perch Hill) at the 25 km mark—a steep 500-meter climb that challenges even the most
Sierre-Zinal
Sierre-Zinal is an iconic 31 km mountain race in the Swiss Alps, famously known as the 'Race of the Five 4,000s' for its views of five legendary peaks. It attracts elite athletes and amateurs alike for its challenging elevation and breathtaking scenery. Course Highlights Known as the "Race of the Five 4,000s," Sierre-Zinal offers some of the most spectacular views in the trail running world. The point-to-point course stretches 31 kilometers through the heart of the Swiss Valais Alps, connecting the town
Cocodona 250
The Cocodona 250 is a legendary 250-mile point-to-point trail ultramarathon that traverses Arizona's diverse landscapes from the Sonoran Desert to the alpine peaks of Flagstaff. Course Highlights The Cocodona 250 is a masterfully curated point-to-point route that showcases the staggering geographical diversity of central and northern Arizona. The journey begins in the Sonoran Desert at Black Canyon City, where runners navigate winding single-track trails lined with iconic Saguaro cacti and Ocotillos. From the desert floor, the course ascends into the rugged Bradshaw
Hardrock Hundred Mile Endurance Run
The Hardrock Hundred Mile Endurance Run is a premier 100-mile ultramarathon in the San Juan Mountains, known for its extreme elevation change and technical high-altitude terrain. Course Highlights The Hardrock Hundred Mile Endurance Run is legendary for its challenging and breathtaking course through the San Juan Mountains in southwestern Colorado. The 2026 edition will follow a clockwise loop, starting and ending in the historic mining town of Silverton. Runners will encounter thirteen major passes in the 12,000' to 13,000' range, showcasing the
Bigfoot 200
The Bigfoot 200 is a premier 200-mile point-to-point ultramarathon that traverses the technical and volcanic terrain of Washington's Cascade Mountains. Course Highlights The Bigfoot 200 Endurance Run offers an unparalleled journey through the rugged and diverse landscapes of the Cascade Mountains in Washington State. The race begins at the base of the iconic Mount St. Helens, where runners navigate through the otherworldly "blast zone" and vast lava fields created by the 1980 eruption. This section provides stark, moon-like scenery with breathtaking views
Western States 100-Mile Endurance Run
The Western States Endurance Run is the world's oldest and most prestigious 100-mile trail race, traversing the rugged Sierra Nevada mountains from Olympic Valley to Auburn, California. Course Highlights The Western States Endurance Run (WSER) follows the middle portion of the historic Western States Trail, a nationally dedicated recreational trail that stretches across the Sierra Nevada. The race begins at the west end of Olympic Valley, the site of the 1960 Winter Olympic Games, and immediately subjects runners to a grueling 2,550-foot
JFK 50 Mile
The JFK 50 Mile is America's oldest ultramarathon, featuring a diverse point-to-point course through the Appalachian Trail, C&O Canal towpath, and rolling country roads. Course HighlightsThe JFK 50 Mile course is renowned for its diverse and challenging terrain, offering a point-to-point "horse-shoe" journey through Maryland's scenic landscapes. The race begins in downtown Boonsboro at an elevation of 570 feet. The initial 5.5 miles involve a steady climb, gaining over 1,100 feet as runners transition from paved roads to the legendary Appalachian
Leadville Trail 100 Run
The Leadville Trail 100 Run is a legendary 100-mile out-and-back ultramarathon through the high-altitude terrain of the Colorado Rockies, famously known as the "Race Across the Sky." Course Highlights The Leadville Trail 100 Run course is a brutal out-and-back ultramarathon that will push even the toughest runners to their limits. Starting and finishing in the heart of Leadville at 10,200 feet, the course traverses the rugged and unrelenting terrain of the Colorado Rockies. Key highlights include the steep and punishing climbs of