2026 Multiday & Ultramarathon Calendar

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.

Leadville Trail 100 Run

Leadville, Colorado, USA · Mountain

A high-altitude Colorado classic with a 99.7-mile out-and-back course, 15,492 ft of climbing, and a 30-hour limit.

Edition note: The organizer says the 2026 race has a green light, but details remain subject to change after regional wildfire impacts.

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.

Transalpine Run

Lenzerheide to Locarno, Switzerland · Mountain

A seven-stage, 258 km crossing of the Swiss Alps from Lenzerheide to Locarno, offered for solo runners and teams of two.

UTMB Mont-Blanc

Chamonix, France · Mountain

The 174 km UTMB World Series Final circles Mont Blanc through France, Italy, and Switzerland with about 9,900 m of climbing.

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.

EMU 6-Day Race

Balatonfüred, Hungary · Road

The 15th EMU six-day race and 2026 GOMU world championship, run for 144 hours on a measured loop beside Lake Balaton.

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.

Grindstone 100M

Natural Chimneys Park, Virginia, USA · Mountain

A 104-mile mountain loop west of Virginia's Shenandoah Valley with roughly 21,000 ft of climbing and a 36-hour 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.

IMTUF 100

McCall, Idaho, USA · Mountain

A rugged mountain 100 from Jug Mountain Ranch near McCall, serving as both a Hardrock and Western States qualifier in 2026.

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.

Teanaway Country 100M

Cle Elum, Washington, USA · Mountain

A rugged Cascade out-and-back with about 31,000 ft of gain and loss, 12 aid stations, required gear, and a 40-hour-plus finish window.

Edition note: The organizer is assessing the final 2026 route after repair work in the area affected by the 2025 Labor Mountain Fire.

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.

Karkloof 100 Miler

Karkloof, KwaZulu-Natal, South Africa · Trail

The tenth edition of a South African 100-miler through the Karkloof's indigenous forest, plantations, farmland, valleys, and waterfalls.

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.

A Lenda Backyard Ultra

Cajamar, São Paulo, Brazil · Trail

A steep last-person-standing race in Cajamar, with each hourly 6.706 km trail loop climbing roughly 293 m.

Lisboa Backyard Ultra

Monsanto Forest Park, Lisbon, Portugal · Trail

A last-person-standing trail race on an hourly 6.706 km loop inside Lisbon's large Monsanto Forest Park.

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.

Australian 6 Day Ultramarathon Festival

Paradise, South Australia, Australia · Road

A six-day fixed-time festival on a 1.426 km loop at Thorndon Park, with 72-hour and 48-hour races joining later in the week.

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.

MDS 120 Morocco

Ouarzazate Province, Morocco · Desert

A three-stage, food-self-sufficient Sahara event with 70 km, 100 km, and 120 km options plus four nights in the race bivouac.

Angeles Crest 100

Altadena, California, USA · Mountain

The 36th Angeles Crest 100 uses a new out-and-back course from Loma Alta Park for 2026 because of Highway 2 closures and Eaton Fire impacts.

Edition note: The 2026 edition uses a new Altadena out-and-back instead of the traditional point-to-point course.

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.

48 Heures de Royan

Royan, France · Road

A French fixed-time festival on a traffic-free stadium circuit of about one kilometre, led by the 48-hour race.

Kodiak 100M

Big Bear Lake, California, USA · Mountain

A 100.6-mile circuit of Big Bear Valley with nearly 16,000 ft of climbing, high-desert transitions, and a 36-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.

Hainesport Endurance Run

Hainesport, New Jersey, USA · Road

A flat paved-loop festival with 48-hour, two 24-hour starts, 12-hour, relay, and 100-mile options at Hainesport Township Park.

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.

Diagonale des Fous

Saint-Pierre to Saint-Denis, Réunion · Mountain

The headline Grand Raid de la Réunion race crosses about 180 km of volcanic island terrain from Saint-Pierre to Saint-Denis.

Pony Express Trail 100

Faust to Simpson Springs, Utah, USA · Road

A remote 100-mile run on western Utah dirt roads with about 3,000 ft of gain and loss; each runner must provide a support crew.

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.

Ultra X South Africa

Western Cape, South Africa · Mountain

A six-stage, 330 km expedition through the Western Cape's valleys, vineyards, remote gorges, mountain passes, and Cederberg wilderness.

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.

The Endless Mile

Alabaster, Alabama, USA · Road

A 72-hour, 48-hour, and 24-hour festival on a certified, paved, lighted 1.00203-mile loop at Veterans Park.

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.

Kullamannen Ultra 100 Miles

Höganäs to Båstad, Sweden · Trail

A 173 km coastal point-to-point through southern Sweden with technical nature-reserve trails, long darkness, and a 32-hour cutoff.

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.

Everest Trail Race

Solukhumbu, Nepal · Mountain

A six-stage, 170 km Himalayan race in Nepal's Solukhumbu region, reaching 4,104 m with 26,000 m of total ascent and descent.

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.

Tunnel Hill 100

Vienna, Illinois, USA · Trail

A flat, fast 100-mile rail-trail race on crushed limestone with a maximum grade of about 2% and a record-focused reputation.

Ultra X Morocco

Ouarzazate, Morocco · Desert

A two-day, 110 km desert ultra around Ouarzazate, with shorter 50 km and 25 km options on rocky trails and oasis terrain.

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.

Backyard Ultra Villa Carlos Paz

Villa Carlos Paz, Córdoba, Argentina · Mixed

An inaugural night-start backyard ultra on Villa Carlos Paz's lakeside costanera, repeating a flat 6.706 km loop every hour.

Coast to Kosci

Twofold Bay to Charlotte Pass, New South Wales, Australia · Mixed

An invitational 240 km journey from the Tasman Sea to Australia's highest mountain, finishing at Charlotte Pass after summiting Kosciuszko.

Extremo Sul Ultramarathon

Chuí to Cassino, Rio Grande do Sul, Brazil · Mixed

A non-stop 226 km crossing of Brazil's immense southern beach from Chuí to Cassino, with only 130 m of climb but a 52-hour limit.

Fat Ox Endurance Runs

Goodyear, Arizona, USA · Road

A fixed-time festival on a certified 0.988178-mile concrete loop, headlined by the 48-hour race and 2026 USATF 24-Hour Championships.

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.

KosciMiler

Snowy Mountains, New South Wales, Australia · Mountain

A 161 km point-to-point through Australia's Snowy Mountains with 5,131 m of climbing, a Mount Kosciuszko summit, and a 36-hour 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.

24 Hores d'Ultrafons en Pista Barcelona

Barcelona, Spain · Track

A charity-focused 24-hour track race at Barcelona's Estadi Municipal Joan Serrahima, accompanied by 12- and 6-hour events.

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.

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.

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.