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Service members and civilians stationed at Kandahar Airfield, Afghanistan, start the 24-Hour Run for Charity, April 16, 2011. A 24-hour run is a form of ultramarathon, in which a competitor runs as far as they can in 24 hours. They are typically held on 1- to 2-mile loops or occasionally 400-meter tracks. Top runners will often run 200 ...
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.
The IAU 24 Hour World Championship is an international 24-hour run competition organised by the International Association of Ultrarunners (IAU). [1] Since 2015, the World Championship has alternated annually with the IAU 100 km World Championships .
The International Association of Ultrarunners recognizes IAU World Records for 50-kilometers, 100-kilometers, 6 hours, 12 hours, 100 miles, 24 hours, 48 hours, and 6 days. [ 17 ] There are ultramarathon racewalking events that are usually 50 km, although 100 km and 100-mile (160 km) "Centurion" races are also organized.
Across The Years is a series of timed multi-day ultra-marathons held from December 28 to January 1 each year outside Phoenix, Arizona. It consists of a 24-hour race, a 48-hour race, a 72-hour race and a 6-day race. The 6-day race was reintroduced for the 2013–2014 edition. All races are held on a 1.05 mile loop at Camelback Ranch in Glendale ...
Longer endurance races vary up to 100 miles, including Spartan Beast, Ultra Beast, and Agoge. Fixed-time events include World's Toughest Mudder (24 hours), Spartan Ultra World Championships, and the 36-hour Agoge. Obstacle Course Races with inflatable obstacles are becoming increasingly popular, including Britain's GUNG-HO race. [15]
Very long endurance running events can be divided into three broad categories: the traditional 26.2-mile (42.2 km) marathon, the ultramarathon, defined as any event longer than the marathon, and true multiday events, which begin with the 24-hour event and can stretch out almost indefinitely, often ranging from six days to 3,100 miles (5,000 km) or longer.
Eleanor Robinson (formerly Adams, née Puckrin, 20 November 1947) is a British former ultramarathon runner and two-time winner of the IAU 100km World Championships. [2] She was the first woman to run over 150 miles in a 24-hour endurance race.