An ultramarathon, also called ultra distance or ultra running, is any footrace longer than the traditional marathon length of 42.195 kilometres. Various distances are raced competitively, from the shortest common ultramarathon of 50 kilometres (31 mi) to over 100 kilometres (62 mi). 50k and 100k are both World Athletics record distances, but some 100 miles (160 km) races are among the oldest and most prestigious events, especially in North America. Around 100 miles is typically the longest course distance raced in under 24 hours but there are also longer multi-day races of 200 miles (320 km) or more, sometimes raced in stages with breaks for sleep. While some ultras are road races, many take place on trails, leading to a large overlap with the sports of trail running and mountain running.
Dean Karnazes, is an American ultramarathon runner, and author of Ultramarathon Man: Confessions of an All-Night Runner, which details ultra endurance running for the general public.
Multiday races are ultramarathon running events which are typically either segmented into daily events of a specified distance or time, or staged so that runners can run as far as they want, at their own discretion, over a set course or over a set number of days. Multiday races can range from continuous 48-hour track events to staged transcontinental treks.
The Leadville Trail 100 Run is an ultramarathon held annually on rugged trails and dirt roads near Leadville, Colorado, through the heart of the Rocky Mountains. First run in 1983, the race course climbs and descends 15,600 feet (4,800 m), with elevations ranging from 9,200 to 12,620 feet. In most years, fewer than half the starters complete the race within the 30-hour time limit.
Ted Corbitt was an American long-distance runner and an official of running organizations. Corbitt is often called "the father of long distance running." He was an ultramarathon pioneer, helping to revive interest in the sport in the United States in the 1960s and 1970s. New York Times columnist Robert Lipsyte called Corbitt a "spiritual elder of the modern running clan". In a Runner's World feature honoring lifetime achievement, writer Gail Kislevitz called Corbitt a "symbol of durability and longevity".
The 6-Day Race became a standard footrace distance in the 1870s and was a popular form of entertainment with up to 70,000 paying visitors during such a Pedestrians event. However the widespread use of the bicycle from 1890 caused it to be replaced as spectator sport by cycle races of the same duration. It was in two forms: strict "heel-and-toe" racewalking, or "go-as-you-please" combination of walking, jogging, running.
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.
Nikki Kimball is an American distance runner specializing in the Ultramarathon. She ran her first 100-mile race at the Western States 100 Mile Endurance Run in 2004, and was the female winner. She was the winning female at Western States again in 2006 and 2007, becoming only the third woman to win Western States three times. In 2014, she won the Marathon Des Sables multi-stage endurance race on her first attempt. Prior to running, her main sport was cross-country skiing. She was crewed at the 2007 Western States by U.S. Senator Max Baucus of Montana, where Kimball lives. She lives in Bozeman, Montana.
David Goggins is an American ultramarathon runner, ultra-distance cyclist, triathlete, public speaker, and author. He is a retired United States Navy SEAL and former United States Air Force Tactical Air Control Party member who served in the Iraq War. His memoir, Can't Hurt Me, was released in 2019.
Lisa Smith-Batchen is an ultramarathon runner and Ironman competitor. She was the first American to win Marathon des Sables.
Amy Palmiero-Winters is a below-knee amputee who currently holds eleven world records in various events. In 2010, she was awarded the James E. Sullivan Award as the top amateur athlete in the United States and the ESPN ESPY Award as the top female athlete with a disability in the world.
Valmir Nunes is a Brazilian runner. A former world record holder, he currently holds South American and Brazilian Ultramarathon records.
Ellie Greenwood is a British ultramarathon runner. She began her ultra career in 2008 and is a two-time 100km World Champion, winning the title in 2010 and 2014. She holds numerous course records, including those for the Western States 100, the Canadian Death Race, the JFK 50 Mile Run and the Knee Knackering North Shore Trail Run. She is the first British woman to win the 90 km Comrades Marathon in South Africa.
Eleanor Robinson is a British former ultramarathon runner and two-time winner of the IAU 100km World Championships. She was the first woman to run over 150 miles in a 24-hour endurance race. She was the winner of the first Badwater Ultramarathon in 1987. She was twice bronze medallist at the IAU 100 km European Championships.
Camille Herron is an American ultramarathon runner. She is the first and only athlete to win all three of the International Association of Ultrarunners' 50K, 100K, and 24 Hour World Championships. She won the 2017 Comrades Marathon and holds several World Record times at ultramarathon distances, along with the Guinness World Record for the fastest marathon in a superhero costume. She is known for running with her hair down, drinking beer, and eating tacos during ultramarathons. In November 2017, she broke Ann Trason's 100-mile Road World Record by over an hour in 12:42:40. She broke her 12-Hour and 100 Mile World Records in February 2022 at the Jackpot 100/US Championship, winning the race outright and beating all of the men. In April 2022, she became the youngest woman to reach 100,000 lifetime miles. She is the first and only woman to run under 13 hours for 100 miles, exceed 150 km for 12-Hours, and to reach 270km for 24Hrs.
Kristin "Krissy" Moehl is an American ultramarathon athlete who specializes in trail running. In 2005, Moehl became the youngest woman to complete the Grand Slam of Ultrarunning, which included a gold medal at the Vermont 100 Mile Endurance Run.
Katalin Nagy is an ultramarathon runner and member of the USA National 24hr Ultramarathon Team.
The IAU 50 km World Championships is an annual, global ultrarunning competition over 50 kilometres organized by the International Association of Ultrarunners (IAU).
Gerald Tabios is a Filipino long-distance runner and Ultramarathon runner. Among his most notable races in the United States is the Badwater Ultramarathon. This is an annual race that stretches 135 miles through Death Valley, California in July and ends after a steep climb of Mount Whitney. In the world of Ultramarathons this race, where temperatures often reach 130 °F, is frequently coined "The Toughest Foot Race in the World." Tabios is a 6-time Badwater 135 finisher.
Carol Morgan is an Irish ultrarunner, who specialises in non-stop mountain ultramarathons 100 km and longer, often in challenging conditions with significant ascents / descents. Born in Dublin in 1973, where she trained as a nurse, she is an advanced practitioner in emergency medicine. Morgan holds the course record for endurance ultra event, the Kerry Way Ultra.