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Plan your fuel

Ultra race calendar

The six UTMB World Series Majors, the Finals in Chamonix and 32 more World Series races, by month. Search by name or place, or filter by region and month.

Race day the race is run Entries open the entry window opens Major or Finals, with its own guide

Dates, distances and qualification rules change every year, so confirm on the official site before you plan. Races marked with an arrow link to the race’s own site. Only the month is shown. Confirm the exact dates on the race’s own site.

39 races listed

How the races fit together

The Majors award double Running Stones, and the top 10 men and women in the 50K, 100K and 100 mile races get a place in the same Finals distance in Chamonix. The Finals lottery draw is in January. Majors held from September onward count towards the following year’s Finals. Check the official Majors page for the current rules.

RaceRace dayEntries openWhereLongestMain fuelling factor
Canyons Endurance RunsAprilSeptember or October, usually, in the year before the raceAuburn, California, United States161 kmWarm spring days, sun and little shade. Heat is the main variable.
Ultra-Trail AustraliaMaySeptember, with UTMB Index holders getting first accessKatoomba, Blue Mountains, Australia161.1 kmAutumn: mild days, cold nights and a real chance of rain.
Val d'AranJulySeptember or October: a ballot first for the shorter races, then direct entry for the longestVielha, Spanish Pyrenees, Spain163 kmHigh alpine: long climbs, hot valleys, cold and windy ridges.
UTMB Finals, ChamonixAugustJanuary: lottery pre-registration, then the draw the same monthChamonix, Franceabout 174 kmHigh alpine, two nights for most UTMB runners, hot valleys and cold, snowy passes.
WildstrubelSeptemberNovember, with UTMB Index holders getting first accessCrans-Montana, Switzerland113 kmSeptember in the Alps: warm valleys, near-freezing passes and sometimes snow.
Kodiak Ultra MarathonsOctoberJanuary or May, after the autumn raceBig Bear Lake, California, United States100 miAltitude above about 7,000 feet all the way, warm days and cold nights.
Chiang Mai ThailandNovember or DecemberJuly, usually with a short priority window for UTMB Index holdersChiang Mai, Thailandabout 173 kmWarm and humid days, cool nights. Sweat does not evaporate, so fluid and salt loss are high.

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