2026 Multiday & Ultramarathon Calendar

Bigfoot 200

🇺🇸 Cascade Mountains, Washington, USA · Mountain

A 207.9-mile nonstop point-to-point mountain ultra through the Cascades around Mount St. Helens, with 45,563 ft of climbing and 12 full aid stations.

Namib Race

🇳🇦 Namib Desert, Namibia · Desert

A 250km, 6-stage self-supported ultramarathon through the Namib Desert — sand dunes, salt pans, dry riverbeds, and gravel plains. Finishes in the coastal town of Swakopmund.

SwissPeaks Odyssey

🇨🇭 Le Bouveret, Valais, Switzerland · Mountain

SwissPeaks' longest alpine challenge, linking glacier country and Lake Geneva terrain across a technical 643km route for ultra-expert runners.

Sri Chinmoy Self-Transcendence 3100 Mile Race

🇺🇸 Jamaica, Queens, New York City, New York, USA · Road

The world's longest certified road race: 3,100 miles around a measured city-block loop in Queens, with runners moving from 6:00 AM to midnight for up to 52 days.

SwissPeaks Legend

🇨🇭 Brig to Le Bouveret, Valais, Switzerland · Mountain

A major SwissPeaks alpine ultra from Brig to Le Bouveret, with 397km of very technical mountain terrain and multiple life-base aid points.

Dragon's Back Race

🇬🇧 Conwy to Cardiff, Wales, UK · Mountain

A legendary 6-day mountain stage race along the spine of Wales, covering technical terrain from Conwy Castle to Cardiff with 16,400m of ascent.

Superior Fall Trail Race 100 Mile

🇺🇸 Gooseberry Falls State Park to Lutsen, Minnesota, USA · Trail

A 102.9-mile point-to-point race on the Superior Hiking Trail, with technical singletrack, 17,350 ft of gain, and a 38-hour cutoff.

Wasatch Front 100 Mile Endurance Run

🇺🇸 Kaysville to Soldier Hollow, Utah, USA · Mountain

A 100-mile point-to-point crossing of Utah's Wasatch Range with roughly 24,000 ft of climbing, high mountain terrain, and a 36-hour limit.

Mogollon Monster 100

🇺🇸 Mogollon Rim near Pine, Arizona, USA · Mountain

A rugged 102.3-mile crossing of the Mogollon Rim with six major rim climbs, 15,900 ft of gain, elevations near 8,000 ft, and a 38-hour cutoff.

Edition note: The event page lists 2026 key stats but still links a runner guide updated in August 2025.

TOR330 - Tor des Géants

🇮🇹 Courmayeur, Aosta Valley, Italy · Mountain

The flagship TORX mountain ultra: a single-stage 330km loop through Italy's Aosta Valley, starting and finishing in Courmayeur with a 150-hour time limit.

Run Rabbit Run 100

🇺🇸 Steamboat Springs, Colorado, USA · Mountain

A high-country Colorado 100-miler based in Steamboat Springs, with separate Hare and Tortoise divisions and division-specific 30- and 36-hour limits.

Edition note: Full / waitlist at the August 10 directory review.

Flagstaff to Grand Canyon Stagecoach Line 100

🇺🇸 Flagstaff to Tusayan near Grand Canyon, Arizona, USA · Trail

A 100-mile point-to-point Arizona Trail race from the Flagstaff area toward the Grand Canyon, with roughly 7,000 ft of gain and a 31-hour solo limit.

Mountain Lakes 100

🇺🇸 Olallie Lake Resort, Oregon, USA · Mountain

A remote 100-mile Cascade trail race based at Olallie Lake, with rocky mountain terrain, Pacific Crest Trail miles, 11,700 ft of gain, and a 30-hour cutoff.

Edition note: Waitlist at the August 10 directory review.

Self-Transcendence 24 Hour Track Race

🇬🇧 Tooting Bec Athletics Track, London, UK · Track

Incorporates the British 24-Hour Championships 2026. An IAU Bronze Label event limited to 55 experienced ultra-runners, held on the Tooting Bec Athletics Track for this edition.

Sydney's Backyard Ultra

🇦🇺 St Ives Showground, Sydney, Australia · Trail

One of Australia's premier backyard ultra events. A last-person-standing race starting at 8:00 AM at St Ives Showground with a community-focused atmosphere.

Grand to Grand Ultra

🇺🇸 Grand Canyon to Grand Staircase, Utah/Arizona, USA · Desert

A self-supported 6-stage, 7-day desert foot race from the Grand Canyon region toward the Grand Staircase, based out of Kanab, Utah.

The Bear 100 Mile Endurance Run

🇺🇸 Logan, Utah to Fish Haven, Idaho, USA · Mountain

A 100-mile point-to-point mountain crossing from Logan, Utah, to Bear Lake in Idaho, with a 36-hour cutoff and elevations up to about 9,200 ft.

Edition note: The lottery and waitlist were closed at the August 10 directory review.

Spartathlon

🇬🇷 Athens to Sparta, Greece · Road

The historic 246km ultramarathon from Athens to Sparta, retracing the legendary run of Pheidippides in 490 BC. A 36-hour time limit. One of the most prestigious ultras in the world.

Ultra X Jordan

🇯🇴 Wadi Rum, Jordan · Desert

A multi-stage trail race through the dramatic landscapes of Wadi Rum and the Jordanian desert. One of the Ultra X global adventure racing series.

Arkansas Traveller 100

🇺🇸 Camp Ouachita near Perryville, Arkansas, USA · Mixed

A 100.3-mile Ouachita Mountains race combining a figure-eight opening with a long out-and-back on forest roads, trails, and limited pavement.

Hennepin Hundred — 100 Mile

🇺🇸 Sterling to Colona, Illinois, USA · Mixed

A flat, point-to-point Illinois 100-miler on the Hennepin Canal State Trail, with a short out-and-back segment, mixed rail-trail surfaces, and a 30-hour cutoff.

Moab 240

🇺🇸 Moab, Utah, USA · Desert

A 241.8-mile desert ultra through Utah's canyons, slickrock, mesas, and mountain ranges around Moab, with 31,892 ft of climbing and a 112-hour cutoff.

OG Yeti 100 Mile Endurance Run

🇺🇸 Abingdon, Virginia, USA · Trail

A runnable Virginia Creeper Trail 100-miler based in Abingdon, using a temporary 2026 route adjustment and a 30-hour cutoff.

Heartland 100

🇺🇸 Cassoday, Kansas, USA · Road

A 100-mile out-and-back on Kansas Flint Hills gravel and dirt roads, with exposed prairie, approximately 6,000 ft of climbing, and a standard 30-hour cutoff.

Midstate Massive Ultra Trail 100M

🇺🇸 New Ipswich, New Hampshire to Douglas, Massachusetts, USA · Mixed

A New England point-to-point 100-miler following the Midstate Trail from New Hampshire to Massachusetts, with 13,615 ft of gain and a 33-hour limit.

Edition note: Final 2026 course advisories were still pending at the August 10 directory review.

Oil Creek 100 Trail Runs — 100 Mile

🇺🇸 Titusville, Pennsylvania, USA · Trail

A 100.6-mile Pennsylvania trail race using three rugged Gerard Hiking Trail loops plus a final going-home loop, with a 32-hour cutoff.

Dutch Backyard Ultra

🇳🇱 Zeewolde, Netherlands · Trail

The official Netherlands satellite event for the World Team Championship. Athletes compete as part of the Dutch national team on a course in Zeewolde.

World Backyard Ultra Team Championship

🇺🇸 Bell Buckle, Tennessee, USA (and worldwide satellite sites) · Trail

The premier backyard ultra team event. National teams of 15 runners compete simultaneously at satellite sites worldwide. Each runner completes 4.167-mile loops every hour. The country with the most total loops wins.

International Ultramarathon Festival — Loutraki

🇬🇷 Loutraki, Greece · Track

The 21st edition of this World Cup festival on a 400m tartan track. Features 48-hour, 24-hour, and 12-hour races in a supportive Mediterranean setting.

Rim to River 100

🇺🇸 New River Gorge, West Virginia, USA · Trail

A 100-mile out-and-back through New River Gorge with repeated rim-to-river traverses, 12,000 ft of climbing, and a 32-hour cutoff.

Edition note: Waitlist at the August 10 directory review.

Salt Creek 24

🇺🇸 Port Angeles, Washington, USA · Trail

A scenic 24-hour endurance race at Salt Creek Recreation Area on the Olympic Peninsula. Features a 1.3-mile looped course with 12-hour solo and relay options.

Javelina Jundred — 100 Mile

🇺🇸 McDowell Mountain Regional Park, Arizona, USA · Desert

A social desert-trail 100 using five rolling loops in McDowell Mountain Regional Park, with an estimated 6,296 ft of gain and a 30-hour cutoff.

Edition note: Waitlist at the August 10 directory review.

Ozark Trail 100 Mile Endurance Run

🇺🇸 Mark Twain National Forest to Steelville, Missouri, USA · Trail

A 100.9-mile point-to-point race through Missouri's Mark Twain National Forest, using mostly Ozark Trail singletrack with a 32-hour cutoff.

Pinhoti 100

🇺🇸 Pine Glen Campground to Sylacauga, Alabama, USA · Trail

A point-to-point Alabama 100-miler through Talladega National Forest and the Pinhoti Trail, ending near Sylacauga with a 32-hour cutoff.

Rio Del Lago 100 Mile Endurance Run

🇺🇸 Beal's Point, Granite Bay, California, USA · Mixed

A varied Northern California 100-miler combining Folsom-area loops with an out-and-back trail journey into the Sierra foothills and a 30-hour cutoff.

Edition note: The final 2026 runner guide was still pending at the August 10 directory review.

The Last Desert

🌍 Antarctica · Mixed

The final event in the 4 Deserts Grand Slam. A multi-stage footrace on the Antarctic continent, accessed by expedition ship from Ushuaia, Argentina. The most remote race on the planet.

Beyond the Ultimate Desert Ultra

🇳🇦 Namib Desert, Namibia · Desert

A 250km self-sufficient desert ultramarathon across five stages in the Namib Desert, with sand dunes, scrubland, heat, and tented camps.

Dinosaur Valley Endurance Run — 100 Mile

🇺🇸 Dinosaur Valley State Park, Glen Rose, Texas, USA · Trail

A looped Texas trail 100 in Dinosaur Valley State Park with roughly 9,000 ft of climbing and mandatory progressive cutoffs across the repeated-loop course.

Edition note: The race publishes mandatory loop cutoffs rather than one standalone final cutoff.

Brazos Bend 100

🇺🇸 Brazos Bend State Park near Needville, Texas, USA · Trail

A flat, repeated-loop 100-miler in Brazos Bend State Park, built around runnable park trails and a 32-hour cutoff.

Edition note: Some navigation still references 2025, while the displayed race date and cutoff information are for 2026.

The Hitchcock Experience — 100 Mile

🇺🇸 Hitchcock Nature Center, Honey Creek, Iowa, USA · Trail

A five-loop Iowa trail 100 at Hitchcock Nature Center, with steep repeated hills, roughly 4,928 ft of elevation change per loop, and a 34-hour cutoff.

Daytona 100

🇺🇸 Jacksonville Beach to Ponce Inlet, Florida, USA · Road

A mostly point-to-point coastal-road 100-miler with a 7-mile opening out-and-back, a Ponce Inlet finish, and a 31-hour net-time limit.

Desert Solstice Track Invitational

🇺🇸 Phoenix, Arizona, USA · Track

An elite invitation-only 24-hour and 100-mile track race at Camelback High School. Limited to 25 runners with qualifying standards. Organized by Aravaipa Running.

Across the Years

🇺🇸 Peoria, Arizona, USA · Road

A legendary multi-day running festival spanning New Year's Eve. Offers 6-hour to 6-day fixed-time races plus fixed-distance options. Organized by Aravaipa Running.

Badwater 135

🇺🇸 Death Valley to Mt. Whitney, California, USA · Desert

The world's most iconic ultra — 135 miles through Death Valley in July, from the lowest point in North America (Badwater Basin, -282 ft) to the Mt. Whitney Portal (8,360 ft).

Beyond the Ultimate Mountain Ultra

🇰🇬 Tian Shan Mountains, Kyrgyzstan · Mountain

A 200km self-sufficient mountain ultramarathon across five stages in the Tian Shan range, with altitude, technical terrain, and 10,500m of total ascent.

Six Days in the Dome — 48 Hour

🇺🇸 Milwaukee, Wisconsin, USA · Track

Part of the Six Days in the Dome festival at the Pettit National Ice Center. A climate-controlled indoor 443m oval, ideal for setting records.

Six Days in the Dome — 6 Day

🇺🇸 Milwaukee, Wisconsin, USA · Track

The premier indoor 6-day race at the Pettit National Ice Center. A 443m cushioned synthetic oval in a climate-controlled environment — a world-class venue for distance records.

Gobi March

🇲🇳 Karakorum, Central Mongolia · Desert

The 20th edition of this 250km, 6-stage self-supported race through the Mongolian steppe. Part of the RacingThePlanet 4 Deserts series. Route passes through the UNESCO World Heritage Orkhon Valley.

IAU 24H Asia & Oceania Championships

🇯🇵 Hirosaki City, Aomori Prefecture, Japan · Track

The official IAU continental championship for 24-hour running in the Asia and Oceania region, held at Hirosaki City Sports Park.

The Old Six Day

🇺🇸 Pennsauken, New Jersey, USA · Road

One of the oldest 6-day races in the United States, held at Cooper River Park. A flat, looped course that evokes the Victorian 6-day pedestrianism tradition.

Marathon des Sables

🇲🇦 Sahara Desert, Morocco · Desert

The 40th anniversary edition of the legendary 'Marathon of the Sands.' A 6-stage, 250km self-supported footrace through the Sahara Desert — widely considered the toughest foot race on Earth.

Myrtle Beach 24 Hour Endurance Run

🇺🇸 Myrtle Beach, South Carolina, USA · Road

A USATF-certified 1.08-mile paved loop course in The Market Common area. Annual event organized by the City of Myrtle Beach Parks & Recreation.