One day, one continuous clock
24-Hour Races
A fixed-time race where the clock runs for one full day and every completed lap or measured distance counts.
How the Format Works
In a 24-hour race, the task is to cover as much distance as possible before the clock expires. Many events use short loops or tracks, so runners can return frequently to food, spare clothing, shoes, crew, and medical support.
The format rewards restraint more than an aggressive opening pace. Walking, fueling, changing layers, solving foot problems, and staying safely alert overnight are part of the performance rather than interruptions to it.
Curated preparation path
Learn, Train, and Plan
Understand the Format
Start with the rules, realistic expectations, and how this format differs from other ultras.
24-Hour Races Explained
Format, course types, scoring, first-race decisions, and safety considerations.
AnswerHow Far Can You Run in 24 Hours?
A practical way to think about distance without treating one target as universal.
Guide24-Hour vs 48-Hour vs 6-Day
Compare timed formats before choosing the duration that fits your experience.
Build the Training Plan
Develop durable easy running, efficient walking, time on feet, and rehearsed race systems.
Train for Your First 24-Hour Race
An adaptable framework for endurance, walking, night practice, and recovery.
GuideTapering for Multiday Races
Reduce fatigue while preserving the routines and equipment you have already tested.
ToolMultiday Pace Calculator
Explore average-speed, lap, break-time, and run-walk scenarios.
Plan Race Day
Connect pace, food, crew flow, footwear, and overnight decisions before the start.
24-Hour Race Pacing Strategy
Build conservative effort and run-walk scenarios that can adapt as conditions change.
GuideWhat to Eat During a 24-Hour Race
Practice a flexible fueling system with familiar foods and fallback options.
GuideCrew and Aid Station Strategy
Organize supplies and decisions so short stops do not become repeated delays.
Pack and Protect
Use familiar backups for the small problems that become decisive late in the race.
24-Hour Race Gear Checklist
A race-specific packing list for clothing, lighting, nutrition, crew, and foot care.
Gear guideShoe Rotation Strategy
Plan tested alternatives for wetness, swelling, pressure changes, and surface fatigue.
ToolInteractive Gear Checklist
Create and save a practical packing list in your browser.
Curated race directory
Active and Upcoming 24-Hour Events
5 matching events as of Jul 31, 2026; directory reviewed June 2026. 2 past editions remain in the directory archive.
Self-Transcendence 24 Hour Track Race
Tooting Bec Athletics Track, London, UK
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.
View verified race details →International Ultramarathon Festival — Loutraki
Loutraki, Greece
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.
View verified race details →Salt Creek 24
Port Angeles, Washington, USA
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.
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. Limited to 25 runners with qualifying standards. Organized by Aravaipa Running.
View verified race details →Across the Years
Peoria, Arizona, USA
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.
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 July 30, 2026.
24-Hour FAQs
Is a 24-hour race suitable as a first multiday event?
It can be a comparatively manageable introduction when the course, support, weather, withdrawal process, and travel demands fit your experience. The format itself is not a safety rating, so assess the specific event and your health, training history, and practiced systems.
Do runners sleep during a 24-hour race?
Some do and some do not. Rules usually allow rest, but the right decision depends on the runner, goals, alertness, symptoms, conditions, and available safe space. Unsafe sleepiness or confusion calls for stopping and race-medical assessment.
How should a first 24-hour goal be set?
Use recent training, walking efficiency, course conditions, and tested break routines to create flexible process goals. A single distance copied from another runner is less useful than pacing, fueling, symptom, and safety checkpoints you can adjust.
Compare Related Formats
48-Hour Races
A two-day fixed-time race where sleep, recovery choices, and the second night become central parts of the plan.
Backyard Ultras
A last-person-standing format built around one 6.7056 km loop every hour, on the hour, until only one finisher remains.
6-Day Races
A 144-hour fixed-time event where sustainable routines and recovery choices matter across nearly a full week.