Fixed-Distance
Sri Chinmoy Self-Transcendence 3100 Mile Race
Jamaica, Queens, New York City, New York, USA
- Terrain
- Road
- Distance / duration
- 3,100 mi
- Course
- Loop
- Cutoff
- 52 days. Finishers need to average about 59.6 miles / 95.9 km per day.
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6-Day48-HourSimpler logistics
Australian 6 Day Ultramarathon Festival
Paradise, South Australia, Australia
- Terrain
- Road
- Distance / duration
- 6 days
- Course
- Loop
- Cutoff
- Six days for the headline race
Stage Race
Ultra X Jordan
Wadi Rum, Jordan
- Terrain
- Desert
- Distance / duration
- 230 km
- Course
- See race record
- Cutoff
- Stage cutoffs apply across the five-day race window; verify current daily cutoffs in the official race information.
Stage RaceSimpler logistics
MDS 120 Morocco
Ouarzazate Province, Morocco
- Terrain
- Desert
- Distance / duration
- 70 km, 100 km, or 120 km over 3 stages
- Course
- Mixed
- Cutoff
- See official source
Fixed-Distance
Angeles Crest 100
Altadena, California, USA
- Terrain
- Mountain
- Distance / duration
- 100 mi
- Course
- Out-and-back
- Cutoff
- 33 hours
Fixed-Distance
Arkansas Traveller 100
Camp Ouachita near Perryville, Arkansas, USA
- Terrain
- Mixed
- Distance / duration
- 100.3 mi
- Course
- Mixed
- Cutoff
- 30 hours
Backyard UltraSimpler logistics
Garden City Backyard Ultra
Toowoomba, Queensland, Australia
- Terrain
- Mixed
- Distance / duration
- 6.706 km every hour
- Course
- Loop
- Cutoff
- One hour per yard; no fixed overall finishing time.
Fixed-Distance
Hennepin Hundred — 100 Mile
Sterling to Colona, Illinois, USA
- Terrain
- Mixed
- Distance / duration
- 100 mi
- Course
- Point-to-point
- Cutoff
- 30 hours
48-Hour24-HourSimpler logistics
48 Heures de Royan
Royan, France
- Terrain
- Road
- Distance / duration
- 48 hr / 24 hr / 12 hr
- Course
- Loop
- Cutoff
- 48 hours
Fixed-Distance
Kodiak 100M
Big Bear Lake, California, USA
- Terrain
- Mountain
- Distance / duration
- 100.6 mi
- Course
- Loop
- Cutoff
- 36 hours
200+ Mile
Moab 240
Moab, Utah, USA
- Terrain
- Desert
- Distance / duration
- 243.5 mi
- Course
- Loop
- Cutoff
- 113 hours
Fixed-Distance
OG Yeti 100 Mile Endurance Run
Abingdon, Virginia, USA
- Terrain
- Trail
- Distance / duration
- 100 mi
- Course
- Out-and-back
- Cutoff
- 30 hours
48-Hour24-HourFixed-DistanceSimpler logistics
Hainesport Endurance Run
Hainesport, New Jersey, USA
- Terrain
- Road
- Distance / duration
- 48 hr / 24 hr / 100 mi
- Course
- Loop
- Cutoff
- 48 hours; the separate 100-mile race has a 30-hour limit
Fixed-Distance
Heartland 100
Cassoday, Kansas, USA
- Terrain
- Road
- Distance / duration
- 100 mi
- Course
- Out-and-back
- Cutoff
- 30 hours standard; approved early starts allow longer limits
Fixed-Distance
Midstate Massive Ultra Trail 100M
New Ipswich, New Hampshire to Douglas, Massachusetts, USA
- Terrain
- Mixed
- Distance / duration
- 100 mi
- Course
- Point-to-point
- Cutoff
- 33 hours from the first wave start
Fixed-Distance
Oil Creek 100 Trail Runs — 100 Mile
Titusville, Pennsylvania, USA
- Terrain
- Trail
- Distance / duration
- 100.6 mi
- Course
- Loop
- Cutoff
- 32 hours
Fixed-Distance
Diagonale des Fous
Saint-Pierre to Saint-Denis, Réunion
- Terrain
- Mountain
- Distance / duration
- Approximately 180 km
- Course
- Point-to-point
- Cutoff
- See official source
Fixed-DistanceSimpler logistics
Pony Express Trail 100
Faust to Simpson Springs, Utah, USA
- Terrain
- Road
- Distance / duration
- 100 mi
- Course
- Point-to-point
- Cutoff
- See official source
24-HourFixed-DistanceSimpler logistics
Albi 24 Heures
Albi, France
- Terrain
- Mixed
- Distance / duration
- 24 hours; separate 100 km race
- Course
- Loop
- Cutoff
- 24 hours
Backyard Ultra
Dutch Backyard Ultra
Zeewolde, Netherlands
- Terrain
- Trail
- Distance / duration
- Backyard Ultra
- Course
- See race record
- Cutoff
- No fixed finish time. Runners must complete each yard within one hour and start the next yard on time.
Backyard Ultra
World Backyard Ultra Team Championship
Bell Buckle, Tennessee, USA (and worldwide satellite sites)
- Terrain
- Trail
- Distance / duration
- Backyard Ultra
- Course
- Loop
- Cutoff
- No fixed finish time. Runners must finish each yard within the hour and start the next one on time.
Stage Race
Ultra X South Africa
Western Cape, South Africa
- Terrain
- Mountain
- Distance / duration
- 330 km over 6 stages
- Course
- Point-to-point
- Cutoff
- See official source
48-Hour24-HourSimpler logistics
International Ultramarathon Festival — Loutraki
Loutraki, Greece
- Terrain
- Track
- Distance / duration
- 48-Hour, 24-Hour
- Course
- See race record
- Cutoff
- 48 hours for the headline listing; shorter fixed-time races are also listed.
48-Hour24-HourSimpler logistics
The Endless Mile
Alabaster, Alabama, USA
- Terrain
- Road
- Distance / duration
- 72 hr / 48 hr / 24 hr
- Course
- Loop
- Cutoff
- 72, 48, or 24 hours depending on entry; all headline races finish Sunday at 9:00 AM
Fixed-Distance
Rim to River 100
New River Gorge, West Virginia, USA
- Terrain
- Trail
- Distance / duration
- 100 mi
- Course
- Out-and-back
- Cutoff
- 32 hours
24-HourSimpler logistics
Salt Creek 24
Port Angeles, Washington, USA
- Terrain
- Mixed
- Distance / duration
- 24-Hour
- Course
- Loop
- Cutoff
- 24 hours for the headline solo event.
Backyard UltraSimpler logistics
Smurf's Backyard Ultra
Smithfield, Cairns, Australia
- Terrain
- Trail
- Distance / duration
- 6.7 km every hour
- Course
- Loop
- Cutoff
- One hour per yard. The main backyard continues until only one runner completes a yard.
Fixed-Distance
Kullamannen Ultra 100 Miles
Höganäs to Båstad, Sweden
- Terrain
- Trail
- Distance / duration
- 173 km
- Course
- Point-to-point
- Cutoff
- 32 hours
Fixed-Distance
Javelina Jundred — 100 Mile
McDowell Mountain Regional Park, Arizona, USA
- Terrain
- Desert
- Distance / duration
- 100 mi
- Course
- Loop
- Cutoff
- 30 hours, with a mandatory Loop 5 start cutoff
Fixed-Distance
Ozark Trail 100 Mile Endurance Run
Mark Twain National Forest to Steelville, Missouri, USA
- Terrain
- Trail
- Distance / duration
- 100.9 mi
- Course
- Point-to-point
- Cutoff
- 32 hours
Stage RaceFixed-Distance
Ultra X Madeira
Madeira, Portugal
- Terrain
- Mountain
- Distance / duration
- 110 km over 2 stages
- Course
- See race record
- Cutoff
- See official source
Fixed-Distance
Pinhoti 100
Pine Glen Campground to Sylacauga, Alabama, USA
- Terrain
- Trail
- Distance / duration
- 100 mi
- Course
- Point-to-point
- Cutoff
- 32 hours
Fixed-Distance
Rio Del Lago 100 Mile Endurance Run
Beal's Point, Granite Bay, California, USA
- Terrain
- Mixed
- Distance / duration
- 100 mi
- Course
- Mixed
- Cutoff
- 30 hours
Stage Race
Everest Trail Race
Solukhumbu, Nepal
- Terrain
- Mountain
- Distance / duration
- 170 km over 6 stages
- Course
- Point-to-point
- Cutoff
- See official source
Stage Race
The Last Desert
Antarctica
- Terrain
- Mixed
- Distance / duration
- 250 km
- Course
- See race record
- Cutoff
- Up to six stages are completed in Antarctica during the race window, subject to conditions and expedition logistics.
Backyard UltraSimpler logistics
Cobb & Co Backyard Ultra
Tandur, Queensland, Australia
- Terrain
- Trail
- Distance / duration
- 6.7 km every hour
- Course
- Loop
- Cutoff
- One hour per yard; no fixed overall finishing time.
Fixed-DistanceSimpler logistics
Tunnel Hill 100
Vienna, Illinois, USA
- Terrain
- Trail
- Distance / duration
- 100 mi
- Course
- Out-and-back
- Cutoff
- 30 hours
Stage RaceSimpler logistics
Ultra X Morocco
Ouarzazate, Morocco
- Terrain
- Desert
- Distance / duration
- 110 km over 2 days
- Course
- Mixed
- Cutoff
- See official source
Stage Race
Beyond the Ultimate Desert Ultra
Namib Desert, Namibia
- Terrain
- Desert
- Distance / duration
- 250 km
- Course
- See race record
- Cutoff
- 5 stages in 5 days within a 7-day event duration.
Backyard UltraSimpler logistics
Backyard Ultra Villa Carlos Paz
Villa Carlos Paz, Córdoba, Argentina
- Terrain
- Mixed
- Distance / duration
- 6.706 km per yard
- Course
- Loop
- Cutoff
- Last person standing
Fixed-Distance
Coast to Kosci
Twofold Bay to Charlotte Pass, New South Wales, Australia
- Terrain
- Mixed
- Distance / duration
- 240 km
- Course
- Point-to-point
- Cutoff
- 46 hours
Fixed-Distance
Extremo Sul Ultramarathon
Chuí to Cassino, Rio Grande do Sul, Brazil
- Terrain
- Mixed
- Distance / duration
- 226 km
- Course
- Point-to-point
- Cutoff
- 52 hours
48-Hour24-HourFixed-DistanceSimpler logistics
Fat Ox Endurance Runs
Goodyear, Arizona, USA
- Terrain
- Road
- Distance / duration
- 48 hr / 24 hr / 100 mi
- Course
- Loop
- Cutoff
- 48 hours for the headline race
Fixed-Distance
Dinosaur Valley Endurance Run — 100 Mile
Dinosaur Valley State Park, Glen Rose, Texas, USA
- Terrain
- Trail
- Distance / duration
- 100 mi
- Course
- Loop
- Cutoff
- Mandatory loop cutoffs apply; qualifying runners receive up to 3 hours for the final 2.5-mile segment
Fixed-Distance
KosciMiler
Snowy Mountains, New South Wales, Australia
- Terrain
- Mountain
- Distance / duration
- 161 km
- Course
- Point-to-point
- Cutoff
- 36 hours
Fixed-Distance
Brazos Bend 100
Brazos Bend State Park near Needville, Texas, USA
- Terrain
- Trail
- Distance / duration
- 100 mi
- Course
- Loop
- Cutoff
- 32 hours
Fixed-Distance
The Hitchcock Experience — 100 Mile
Hitchcock Nature Center, Honey Creek, Iowa, USA
- Terrain
- Trail
- Distance / duration
- 100 mi
- Course
- Loop
- Cutoff
- 34 hours
200+ Mile
Winter Downs 200
Dorking, England, UK
- Terrain
- Trail
- Distance / duration
- 200 mi
- Course
- Loop
- Cutoff
- 96 hours
24-HourSimpler logistics
24 Hores d'Ultrafons en Pista Barcelona
Barcelona, Spain
- Terrain
- Track
- Distance / duration
- 24 hr / 12 hr / 6 hr
- Course
- Loop
- Cutoff
- 24 hours
Fixed-Distance
Daytona 100
Jacksonville Beach to Ponce Inlet, Florida, USA
- Terrain
- Road
- Distance / duration
- 100 mi
- Course
- Mixed
- Cutoff
- 31 hours net time, with strict interim aid-station closure times
24-HourFixed-Distance
Desert Solstice Track Invitational
Phoenix, Arizona, USA
- Terrain
- Track
- Distance / duration
- 24-Hour, Fixed-Distance
- Course
- Loop
- Cutoff
- 24-hour race ends at 8:00 AM Sunday; 100-mile runners share the same track event.
48-Hour24-Hour6-DayFixed-DistanceSimpler logistics
Across the Years
Peoria, Arizona, USA
- Terrain
- Mixed
- Distance / duration
- 48-Hour, 24-Hour, 6-Day, Fixed-Distance
- Course
- Loop
- Cutoff
- Event options include 6-hour, 12-hour, 24-hour, 48-hour, 72-hour, 6-day, and fixed-distance races.
Stage Race
Oman Desert Marathon
Bidiyah, Ash Sharqiyah, Oman
- Terrain
- Desert
- Distance / duration
- 165 km over 5 stages
- Course
- Point-to-point
- Cutoff
- See official source
200+ Mile
Montane Winter Spine
Edale to Kirk Yetholm, United Kingdom
- Terrain
- Mountain
- Distance / duration
- 268 mi
- Course
- Point-to-point
- Cutoff
- 156 hours
Fixed-Distance
Coldwater Hundred — 100 Mile
Estrella Mountain Regional Park, Goodyear, Arizona, USA
- Terrain
- Desert
- Distance / duration
- 101.3 mi
- Course
- Loop
- Cutoff
- 32 hours, finishing by 3:00 PM Sunday
24-Hour
Spartanion Tel Aviv 24-Hour
Hayarkon Park, Tel Aviv, Israel
- Terrain
- Road
- Distance / duration
- 24 hr
- Course
- Loop
- Cutoff
- 24 hours
Fixed-Distance
Hong Kong 100
Hong Kong
- Terrain
- Mountain
- Distance / duration
- 100 km
- Course
- Point-to-point
- Cutoff
- 30 hours
Fixed-Distance
Tarawera Ultra-Trail TMiler
Rotorua, New Zealand
- Terrain
- Trail
- Distance / duration
- 163 km
- Course
- See race record
- Cutoff
- 36 hours
48-Hour24-HourSimpler logistics
Jackalope Jam
Cat Spring, Texas, USA
- Terrain
- Mixed
- Distance / duration
- 100 / 72 / 48 / 24 hours, plus shorter options
- Course
- Out-and-back
- Cutoff
- The selected timed duration, with breaks permitted.
Stage Race
Southern Lakes Ultra
Central Otago to Queenstown, New Zealand
- Terrain
- Mountain
- Distance / duration
- Approximately 250 km over 6 stages
- Course
- Point-to-point
- Cutoff
- See official source
Stage Race
Ultra ASIA Race
Mai Châu, Vietnam
- Terrain
- Mountain
- Distance / duration
- 160 km over 4 stages
- Course
- Point-to-point
- Cutoff
- See official source
Backyard Ultra
Capital Backyard Ultra
Lorton, Virginia, USA
- Terrain
- Trail
- Distance / duration
- Backyard Ultra
- Course
- Loop
- Cutoff
- No fixed finish time. Runners must finish each yard in under one hour and start the next on time.
200+ Mile
Delirious WEST 200 Miler
Northcliffe to Albany, Western Australia, Australia
- Terrain
- Trail
- Distance / duration
- 200 mi
- Course
- Point-to-point
- Cutoff
- See official source
Stage Race
Atacama Crossing
San Pedro de Atacama, Chile
- Terrain
- Desert
- Distance / duration
- 250 km over 6 stages
- Course
- Point-to-point
- Cutoff
- See official source
6-Day48-Hour24-HourSimpler logistics
NZ Ultramarathon Festival — 6 Day
Hagley Park, Christchurch, New Zealand
- Terrain
- Road
- Distance / duration
- 6 days
- Course
- Loop
- Cutoff
- Six days
Fixed-Distance
Bradshaw Brute 100
Black Canyon City to Prescott, Arizona, USA
- Terrain
- Mountain
- Distance / duration
- 99.9 mi
- Course
- Point-to-point
- Cutoff
- 38 hours, finishing by 8:00 PM Monday
200+ Mile
Cocodona 250
Black Canyon City to Flagstaff, Arizona, USA
- Terrain
- Mountain
- Distance / duration
- 253.3 mi
- Course
- Point-to-point
- Cutoff
- 125 hours
200+ Mile
Tahoe 200
Lake Tahoe, California/Nevada, USA
- Terrain
- Mountain
- Distance / duration
- 200.4 mi
- Course
- Loop
- Cutoff
- 105 hours
Fixed-Distance
Western States 100
Olympic Valley to Auburn, California, USA
- Terrain
- Trail
- Distance / duration
- 100.2 mi
- Course
- Point-to-point
- Cutoff
- 30 hours
24-Hour
Taiping 24 Hour
Taiping, Perak, Malaysia
- Terrain
- Road
- Distance / duration
- 24 hr / 12 hr / 6 hr / 3 hr
- Course
- Loop
- Cutoff
- 24 hours
Fixed-Distance
Hardrock 100
Silverton, Colorado, USA
- Terrain
- Mountain
- Distance / duration
- 100 mi
- Course
- Loop
- Cutoff
- 48 hours
Fixed-Distance
Cascade Crest 100
Easton, Washington, USA
- Terrain
- Mountain
- Distance / duration
- 100 mi
- Course
- Loop
- Cutoff
- 34 hours
48-Hour
GOMU 48-Hour World Championship
Skanderborg, Denmark
- Terrain
- Road
- Distance / duration
- 48 hours
- Course
- Loop
- Cutoff
- 48 hours
Stage RaceSimpler logistics
Ultra X Rwanda
Ruhondo and Musanze, Rwanda
- Terrain
- Mixed
- Distance / duration
- 110 km over 2 stages
- Course
- Point-to-point
- Cutoff
- See official source
The directory is selective rather than exhaustive. Dates, entry status, fees, routes and rules can change; verify them with the linked organizer before registration or travel.
Use Comparison to Build a Shortlist
Format and distance alone do not describe the logistical demands of a race. Compare terrain, course model, cutoff and published support, then open each detailed record and its official sources.
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Frequently Asked Questions
Does the race finder list every ultramarathon?
No. It searches the selective, source-checked Multiday Running directory. The organizer and relevant federation or registration platform remain authoritative.
Why are some comparison fields blank?
A value is shown only when the directory record has source-supported information. Missing data is not inferred from similar races or older editions.
What does simpler logistics mean?
It is an editorial comparison of factors such as short loops or frequent aid access. It is not a safety rating and does not mean the event itself is easy.
How often can race information change?
Dates, routes, registration status, entry rules and support arrangements can change at any time. Confirm everything material with the organizer before committing money or travel.