One finish line, many possible formats
Fixed-Distance Multiday Races
A broad family of continuous races where the finish line is fixed but the distance, duration, terrain, and support model vary widely.
Cover photo: Daoud Abismail / Unsplash
How the Format Works
Fixed-distance multiday races ask runners to complete a defined route within a cutoff. The category can include road classics, mountain crossings, and exceptionally long loop races, so the label alone says little about technical difficulty or support.
Start with the actual event rather than a generic distance plan. Course profile, surface, climate, cutoff structure, aid spacing, sleep opportunities, navigation, crew access, qualification, and withdrawal transport define the challenge.
Checked figures
Three races inside one label
Fixed-distance only means the finish line is defined. These three events in the directory show why a single pacing plan cannot cover the category.
| Measure | Figure |
|---|---|
| Spartathlon 2026 | 245 km from Athens to Sparta, 36-hour limit, every checkpoint also a cutoff. Tamás Bódis won in 19:40:51. |
| Badwater 135, 2026 | 135 miles from Badwater Basin to Whitney Portal, with a 45-hour limit. The older 48-hour limit is not the 2026 rule. |
| Self-Transcendence 3100 | 3,100 miles on a Queens loop, up to 52 days. A finisher needs about 59.6 miles / 95.9 km a day. |
The 2026 Spartathlon road book places the finish at 244.74 km; the organizer's announcements say 245 km. Compare duration, cutoffs, aid, and support for the specific event, not the shared label.
Sources: Spartathlon 2026 results; Badwater 135 event page; Self-Transcendence 3100 event page.
Curated preparation path
Learn, Train, and Plan
1. Define the Actual Format
Look beyond distance and compare clock, terrain, support, qualification, and withdrawal rules.
Types of Multiday Events
Compare fixed-distance, fixed-time, stage, backyard, and continuous formats.
GuideChoose Your First Multiday Race
Use practical event questions instead of assuming one distance is best.
AnswerBest First Ultramarathon Distance
Why terrain, support, cutoffs, and experience matter alongside distance.
2. Plan Movement and Rest
Create course-specific options for walking, sleep, pacing, and safe adaptation.
Walking Strategy for Ultramarathons
Use deliberate walking for terrain, energy management, and sustainable progress.
GuideSleep Strategy for Multiday Races
Prepare multiple rest options and clear alertness-based safety rules.
ToolMultiday Pace Calculator
Explore finish scenarios with moving time, breaks, and sleep included.
3. Build Support and Fueling
Match the plan to aid access, crew rules, available food, and route conditions.
4. Prepare for Changing Conditions
Protect feet, lighting, and equipment across a route that may span days.
Ultra Cutoff Planner
See how much margin each intermediate gate leaves when conditions slow you down.
Gear guideHeadlamp and Battery Strategy
Plan lighting around terrain, night duration, charging, and backups.
ToolInteractive Gear Checklist
Build a list, then reconcile it with the current mandatory-kit rules.
Curated race directory
Active and Upcoming Fixed-Distance Events
44 matching events as of Nov 9, 2026; event source reviews dated August 10, 2026 – November 9, 2026. 56 past editions remain in the directory archive.
Antarctic Ice Ultra
Ultima Basecamp, Queen Maud Land, Antarctica
A fly-in Antarctic ultra on a 4.2 km out-and-back snow course at Ultima Basecamp in Queen Maud Land, with 50 km to 100-mile races, a 24-hour race and a 24-hour limit.
View verified race details →TransLantau by UTMB
Mui Wo, Lantau Island, Hong Kong
A 104 km night-start loop from Mui Wo across the ridges, coast and villages of Hong Kong’s Lantau Island via Tai O and Ngong Ping, with 4,500 m of climbing and a 27-hour limit.
View verified race details →Pacific Trails California by UTMB
Rancho San Fernando Rey, Santa Barbara County, California, USA
A UTMB World Series 50K on a private 30,000-acre working cattle ranch in the Santa Ynez Valley, with about 5,000 ft of climbing and a 10-hour limit.
View verified race details →SkyRun South Africa
Lady Grey to Wartrail, Eastern Cape, South Africa
A self-supported, self-navigated 100 km mountain race over South Africa’s Witteberg range from Lady Grey to Wartrail, with 4,527 m of climbing, an unmarked route and a 30-hour limit.
View verified race details →Tunnel Hill 100
Vienna, Illinois, USA
A flat, fast 100-mile rail-trail race on crushed limestone with a maximum grade of about 2% and a record-focused reputation.
View verified race details →Bariloche by UTMB
San Carlos de Bariloche, Patagonia, Argentina
The Tronador 130K of Patagonia Bariloche by UTMB loops from Bariloche’s Centro Cívico over Cerro Otto, Catedral and Bella Vista, with 6,580 m of climbing and a 33.5-hour limit.
View verified race details →Coast to Kosci
Twofold Bay to Charlotte Pass, New South Wales, Australia
An invitational 240 km journey from the Tasman Sea to Australia's highest mountain, finishing at Charlotte Pass after summiting Kosciuszko.
View verified race details →Extremo Sul Ultramarathon
Chuí to Cassino, Rio Grande do Sul, Brazil
A non-stop 226 km crossing of Brazil's immense southern beach from Chuí to Cassino, with about 130 m of climb and a 52-hour limit. The low elevation gain does not remove the challenges of sand, exposure and self-sufficiency between bases.
View verified race details →Fat Ox Endurance Runs
Goodyear, Arizona, USA
A fixed-time festival on a certified 0.988178-mile concrete loop, headlined by the 48-hour race and 2026 USATF 24-Hour Championships.
View verified race details →Ultra-trail Cape Town
Cape Town, South Africa
Cape Town’s 100-mile trail race loops from Gardens Rugby Club over Table Mountain and down the Cape Peninsula to Simon’s Town and back, with over 7,000 m of climbing and a 45-hour cutoff.
View verified race details →Dinosaur Valley Endurance Run — 100 Mile
Dinosaur Valley State Park, Glen Rose, Texas, USA
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.
View verified race details →JFK 50 Mile
Boonsboro to Williamsport, Maryland, USA
America's oldest ultramarathon, first run in 1963: 50.2 miles from Boonsboro to Williamsport, Maryland, over the Appalachian Trail and C&O Canal towpath, with a 13-hour limit.
View verified race details →KosciMiler
Snowy Mountains, New South Wales, Australia
A 160.5 km point-to-point through Australia’s Snowy Mountains with 4,731 m of climbing, a Mount Kosciuszko summit, and a 36-hour cutoff.
View verified race details →SaintéLyon
Saint-Étienne to Lyon, France
A night race of about 80 km from Saint-Étienne to Lyon over the Monts du Lyonnais, first held in 1952, on 65% trail and 35% road with at least 2,000 m of climbing.
View verified race details →Chiang Mai Thailand by UTMB
Chiang Dao to Chiang Mai, Chiang Mai Province, Thailand
The 173 km Chiang Dao 160 runs from Wat Tham Chiang Dao to Chiang Mai PAO Park in northern Thailand, with 9,800 m of climbing and a 48-hour limit, at the UTMB Asia-Pacific Major.
View verified race details →The Hill Ultra
The Wrekin, Shropshire, England, United Kingdom
A winter challenge of repeated climbs up The Wrekin, covering 160 miles and approximately 47,000 ft of ascent within 48 hours.
View verified race details →Brazos Bend 100
Brazos Bend State Park near Needville, Texas, USA
A flat, repeated-loop 100-miler in Brazos Bend State Park, built around runnable park trails and a 32-hour cutoff.
View verified race details →Kepler Challenge
Te Anau, New Zealand
A 60 km mountain run around Fiordland’s Kepler Track, first held in 1988, with about 2,200 m of climbing, a 450-runner cap and a 12-hour limit.
View verified race details →The Hitchcock Experience — 100 Mile
Hitchcock Nature Center, Honey Creek, Iowa, USA
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.
View verified race details →Oman by UTMB
Al Hamra to Birkat Al Mouz, Hajar Mountains, Oman
The 154 km Hajar Ultra crosses Oman’s Hajar Mountains from Al Hamra over Jabal Akhdar to Birkat Al Mouz, with about 8,000 m of climbing, a via ferrata near km 87 and a 48-hour limit.
View verified race details →Daytona 100
Jacksonville Beach to Ponce Inlet, Florida, USA
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.
View verified race details →Hellgate 100K++
Natural Bridge Station to Fincastle, Virginia, USA
David Horton's December night race in Virginia's Blue Ridge, billed as 100K++ but 66.6 miles on the Glenwood Horse Trail, starting at 12:01 AM with an 18-hour limit.
View verified race details →Desert Solstice Track Invitational
Phoenix, Arizona, USA
An elite invitation-only 24-hour and 100-mile track race at Camelback High School. Entry is selective and based on qualifying standards. Organized by Aravaipa Running.
View verified race details →Across the Years
Peoria, Arizona, USA
A New Year fixed-time festival on a 1.42-mile dirt and paved loop at Peoria Sports Complex, with a 6-day race, rolling-start 72- to 6-hour races and 100- and 200-mile options.
View verified race details →Tuscobia Winter Ultra
Rice Lake, Wisconsin, USA
A 160-mile out-and-back winter race from Rice Lake on Wisconsin's Tuscobia State Trail, by foot, bike or ski, with water-only checkpoints, mandatory camping gear and a 65-hour limit on foot.
View verified race details →Brazil 135 Ultra Journey
Águas da Prata, São Paulo, to Paraisópolis, Minas Gerais, Brazil
A 240 km (150-mile) non-stop race on the Caminho da Fé pilgrim route through the Serra da Mantiqueira, from Águas da Prata to Paraisópolis, with optional earlier finishes and a 68-hour limit.
View verified race details →Fat Pursuit
Island Park, Idaho, USA
A 200 km winter race on groomed snowmobile trails around Island Park, Idaho, by fat bike, ski or foot, on an unmarked course navigated by GPS, with three heated checkpoints and a water-boil test.
View verified race details →MDS Ultra Morocco
Erfoud, Morocco
A non-stop, food-self-sufficient Sahara race from Erfoud on parts of the MDS Legendary route, over 100 miles or 100 km, with a 40-hour limit and a 4 km/h minimum speed.
View verified race details →Bandera 100K
Hill Country State Natural Area, Bandera, Texas, USA
A 100 km trail race of two counterclockwise 50 km loops on rocky, sotol-lined hills in Hill Country State Natural Area, with about 6,600 ft of climbing and a 25-hour limit.
View verified race details →Vietnam Highlands Trail by UTMB
Da Lat, Lam Dong, Vietnam
The 101.5 km 100K Langbiang runs from Lam Vien Square in Da Lat over Langbiang, Elephant Mountain and Pinhatt to the Clay Tunnel near Tuyen Lam Lake, with 5,570 m of climbing and a 29-hour limit.
View verified race details →Terra de Gigantes
Torre, Serra da Estrela, to Nazaré, Portugal
A 306.8 km self-navigated non-stop race across Portugal from Torre, the highest point of Serra da Estrela, to Nazaré on the Atlantic, with eight support bases and a 74-hour limit.
View verified race details →Coldwater Hundred — 100 Mile
Estrella Mountain Regional Park, Goodyear, Arizona, USA
A 101.3-mile desert loop race at Estrella Mountain Regional Park, combining two shorter red loops and three longer blue loops with a 32-hour cutoff.
View verified race details →HURT 100-Mile Endurance Run
Honolulu, Oʻahu, Hawaii, USA
Five 20-mile laps of rooty, muddy rainforest single-track in the mountains above Honolulu, with about 24,500 ft of climbing, 20 stream crossings and a 36-hour limit.
View verified race details →Arc of Attrition 100M
Coverack to Perranporth Airfield, Cornwall, United Kingdom
A winter coastal ultra along Cornwall’s South West Coast Path, from Coverack to Perranporth Airfield, with 173 km, 5,507 m of climbing and a 37-hour limit.
View verified race details →Hong Kong 100
Hong Kong
A 100 km mountain-trail race through Hong Kong's beaches, country parks, steep ridgelines, and extensive trail network.
View verified race details →Arrowhead 135
International Falls to Tower, Minnesota, USA
A 135-mile winter race on the Arrowhead State Trail from International Falls to Tower, Minnesota, on foot, bike or skis, with mandatory survival gear, three checkpoints and a 60-hour limit.
View verified race details →Rocky Raccoon 100
Huntsville, Texas, USA
A five-lap 100-mile trail race at Huntsville State Park, with frequent aid access, gently rolling terrain and a 32-hour limit.
View verified race details →Black Canyon Ultras
Spring Valley to New River, Arizona, USA
Point-to-point desert races on the Black Canyon National Recreation Trail, with the 100K on Saturday and a separate 50K on Sunday.
View verified race details →Tarawera Ultra-Trail TMiler
Rotorua, New Zealand
Tarawera's longest race starts at Te Puia in Rotorua, taking runners through the region's forests and lake country over 163 km.
View verified race details →Jackpot Ultras
Cornerstone Park, Henderson, Nevada, USA
Aravaipa’s timed-race festival at Cornerstone Park offers 48-hour and 24-hour races alongside shorter timed events and fixed distances.
View verified race details →Bradshaw Brute 100
Black Canyon City to Prescott, Arizona, USA
A distinct 99.9-mile point-to-point race within Cocodona race week, climbing from Black Canyon City through Crown King to Prescott with a 38-hour cutoff.
View verified race details →Western States 100
Olympic Valley to Auburn, California, USA
A 100.2-mile point-to-point race from Olympic Valley through the Sierra Nevada and foothill canyons to Auburn, with qualification and lottery entry.
View verified race details →Hardrock 100
Silverton, Colorado, USA
A high-altitude loop through Colorado's San Juan Mountains from Silverton, with the 2027 edition running counterclockwise and allowing 48 hours to finish.
View verified race details →Cascade Crest 100
Easton, Washington, USA
A mountain 100-miler from Easton, Washington. For 2027 the organizer expects an alternate out-and-back route because of damage from the 2026 Three Queens Fire.
View verified race details →Dates, entry status, routes, and rules can change. Use each event page's official organizer links before registration or travel. Format preparation paths were reviewed October 2, 2026.
Fixed-Distance FAQs
What makes a fixed-distance race a multiday event?
The course or cutoff extends the effort through multiple day-night cycles for at least part of the field. There is no single distance threshold that makes every race operationally alike.
Are fixed-distance races easier to pace than timed races?
Not inherently. A known finish distance helps with route planning, but terrain, weather, cutoffs, aid gaps, sleep loss, and navigation may make pace highly variable.
How should fixed-distance events be compared?
Compare expected duration, terrain, elevation, climate, cutoff gates, aid spacing, crew and pacer rules, sleep options, mandatory gear, qualification, medical support, and withdrawal transport—not distance alone.
Compare Related Formats
200+ Mile Races
A continuous fixed-distance ultramarathon where route, terrain, sleep, aid access, and a multi-day cutoff shape the race.
100-Mile Ultramarathons
A fixed-distance ultramarathon where terrain, cutoff structure, night running, aid access, and crew rules can matter as much as the 100-mile label.
Stage Races
A multiday event split into daily stages, with defined starts and finishes plus an overnight camp, hotel, or support base.