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The International Association of Ultrarunners (IAU) is the world governing body of ultra running, race events longer than the marathon distance of 42.2 km. It regulates and sanctions the World Championships for various ultramarathon distances, and tracks world records in ultra distance races approved by IAU.
An ultramarathon is a footrace longer than the traditional marathon distance of 42.195 kilometres (26 mi 385 yd). The sport of running ultramarathons is called ultra running or ultra distance running.
Yukon Arctic Ultra: Whitehorse to Dawson City, Yukon, 430 miles (692 km) in 13 days. Described as the coldest and toughest ultra in the world. [3] [4] Canada: Bruce Trail: Ontario, Canada 800 kilometers in (10–15 days). United States: Self-Transcendence 3100 Mile Race: World's longest certified footrace (52 days) United States
The 4 Deserts Ultramarathon Series is an annual series of four 250-kilometer (155-mile) races across deserts around the globe. [1] The races were recognized as the world's leading endurance footrace series by TIME magazine in 2009 and 2010, [ 2 ] as the "Ultimate test of human endurance". [ 3 ]
The 61st annual JFK 50 Mile — the oldest ultramarathon in the U.S. — will be held Saturday in Washington County, starting at 6:30 a.m. in downtown Boonsboro and finishing at Springfield Middle ...
The 4 Deserts Ultramarathon Series was recognized by Time magazine in 2009 and 2010 as the world's leading series of rough-country endurance footraces. [43] The 250-kilometre (160 mi) races take place over 7 days and 6 stages.
The Grand Slam of Ultrarunning is a set of four of the five most prestigious and oldest 100-mile races contested in the United States, comprising the Old Dominion 100 Mile Endurance Run in Virginia, the Western States 100 in California, the Vermont 100 Mile Endurance Run in Vermont, the Leadville Trail 100 in Colorado, and the Wasatch Front 100 Mile Endurance Run in Utah.
Runners, WS 2010. The finish line to the Western States 100 at Placer High School. The Western States Endurance Run, known commonly as the Western States 100 or Western States, is a 100.2-mile (161 km) ultramarathon that takes place on California's Sierra Nevada Mountains trails each year on the last full weekend of June.