An ultramarathon, also called ultra distance or ultra running, is a footrace longer than the traditional marathon length of 42.195 kilometres. Various distances, surfaces, and formats are raced competitively, from the shortest common ultramarathon of 31 miles (50 km) and up to 3100 miles. World Championships are held by the International Association of Ultrarunners (IAU) for 50 km, 100 km, 24 hours, and ultra trail running. The Global Organization of Multi-Day Ultramarathoners (GOMU) holds World Championships for 48 hours and 6 days. World Records are ratified and recognized by World Athletics, the IAU, and by GOMU.
The Ultra-Trail du Mont-Blanc (UTMB) is a mountain ultramarathon race, first held in 2003, that follows the route of the Tour du Mont Blanc. It has been regarded as the most competitive trail ultramarathon in the world.
Ida Nilsson is a Swedish long-distance runner who also competes in ski mountaineering. In 2003 – 2006 she won a total of ten gold medals in Swedish championships in track & field and cross country running, plus two NCAA gold medals. After many years away from training Nilsson won the Swedish championship in ski mountaineering in 2016 and a couple of months later won the prestigious Transvulcania ultramarathon.
Hal Koerner is an American distance runner specializing in ultramarathon running. He is the owner of a specialty running store, Rogue Valley Runners, located in the mountainous Southern Oregon town of Ashland. He is one of the subjects of JB Benna's feature-length documentary "Unbreakable: The Western States 100".
Kílian Jornet is a Spanish professional long-distance trail runner and ski mountaineer. Jornet has won some of the most prestigious ultramarathons, including the Ultra-Trail du Mont-Blanc multiple times, Grand Raid, Western States and Hardrock.
Karl Meltzer is an ultrarunner and ultrarunning coach based in Sandy, Utah. Meltzer has won more 100-mile ultramarathons than any other ultramarathoner, and has held speed records at major U.S. trails, including the Appalachian Trail and the Pony Express Trail. Meltzer's trail runs have been featured in news outlets from Ultrarunning.com to NBC Sports. Meltzer has been a professional ultramarathoner since 1999, and a coach since 2007.
Emelie Tina Forsberg is a Swedish athlete specializing in trail running and ski mountaineering. She has won repeated victories in different disciplines, including European and World Championships.
Rory Bosio is an American ultramarathon runner. She is specializes in mountain running, and won the 2013 and 2014 Ultra-Trail du Mont-Blanc.
Sage Clifton Read Canaday is an American long-distance runner and ultramarathoner.
Anna Heather Frost is a New Zealand trail and ultra runner.
Elisabet Barnes is a Swedish athlete specialized in ultrarunning. Her major claim to fame is winning the Marathon des Sables in 2015, winning each stage of the race. She repeated her win in 2017. The Marathon des Sables has been listed by Outside Magazine as one of the 9 toughest ultramarathons in the world. In 2015, she participated in six races, winning all and setting new course records in four.
Lill Maria Kotka is a Swedish athlete who specialized in ultrarunning.
Kieren D'Souza is an Indian ultramarathon runner and endurance athlete. In 2016, he became the first Indian to qualify for and finish the Spartathlon, a 246 kilometre footrace from Athens to Sparta held annually in Greece. Kieren, then aged 23, completed the race in 33 hours, 2 minutes and 25 seconds, standing 85th among 370 participants. Up to 2016, only 29 athletes under the age of 25 had completed the race that has been held annually since 1983.
Jonathan Albon is a British sky runner and obstacle course racer who has won three Skyrunner World Series.
Speedgoat 50k is an international skyrunning competition held for the first time in 2008. It is run every year in Little Cottonwood Canyon in July and includes a marquee 50K race and typically one or more other distances/challenges.
Yuri Yoshizumi is a Japanese ultra runner and skyrunner. She won the Asian Vertical Kilometre Skyrunning Championship in 2016, placed second in the Vertical Kilometer World Circuit in 2019 and won a number of individual events including the 2019 Transvulcania Marathon and the Fuji Mountain Race in 2017, 2018 and 2019.
Anna Mae Flynn is an ultrarunner and ultrarunning coach based in Lake Tahoe, California. Flynn was the female winner of the 2017 and 2019 Speedgoat 50k.
Ekaterina Mityaeva is a Russian athlete specializing in trail running, skyrunning, mountain running and ultra running. She is a winner and prize-winner of the international competitions and Championships of Russia.
Ruth Charlotte Croft is a New Zealand ultramarathon and trail runner. Croft was the silver medalist at the 2019 Trail World Championships. Her victories at major international races include the Tarawera Ultramarathon, Western States, and Ultra Trail Cape Town.
Grant Barnette is an American ultrarunner, trail runner and ski mountaineering athlete from Lenoir, North Carolina.
United States 