Ultramarathon

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Ultramarathon
Sahara Race 2011.jpg
Ultramarathoners compete at the Sahara Race 2011 (4 Deserts).
Highest governing bodyWorld Athletics
Presence
World Championships1987–

An ultramarathon, also called ultra distance or ultra running, is any footrace longer than the traditional marathon length of 42.195 kilometres (26 mi 385 yd). 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.

Overview[edit]

There are two main types of ultramarathon events: those that cover a specified distance or route, and those that last for a predetermined period of time (with the winner covering the most distance in that time). The most common distances are 50 kilometres (31.07 mi), 100 kilometres (62.14 mi), 50 miles (80.47 km), and 100 miles (160.93 km), although many races have other distances. The 100 kilometer race is recognized as an official world record event by the International Association of Athletics Federations (IAAF), the world governing body of track and field.[1]

Other ultramarathon races include double marathons, 24-hour races, and multiday races of 1,000 miles (1,600 km) or longer. The format of these events and the courses vary, ranging from single loops (some as short as a 400-metre (1,300 ft) track),[2] to point-to-point road or trail races, to cross-country rogaines. Many ultramarathons, especially trail events, have significant obstacles, such as inclement weather, elevation change, or rugged terrain. Many of these races are run on dirt roads or mountain paths, though some are run on paved roads as well. Usually, there are aid stations, perhaps every 20 to 35 kilometres (12 to 22 mi), where runners can replenish food and drink supplies or take a short break.

Timed events range from 6, 12, and 24 hours to 3, 6, and 10 days (known as multi-day events). Timed events are generally run on a track or a short road course, often one mile (1.6 km) or less.[3]

There are some self-supported ultramarathon stage races in which each competitor has to carry all their supplies including food to survive the length of the race, typically a week long. An example of this is the Grand to Grand Ultra in the USA.

The International Association of Ultrarunners (IAU) organises the World Championships for various ultramarathon distances, including 50 kilometres (31 mi), 100 kilometres (62 mi), 24 hours, and ultra trail running, which are also recognized by the IAAF. Many countries around the world have their own ultrarunning organizations, often the national athletics federation of the country, or are sanctioned by such national athletics organizations. World best performances for distances, times, and ages are tracked by the IAU.

Racewalking events are usually 50 km, although 100 km and 100-mile (160 km) "Centurion" races are also organized. Furthermore, the non-competitive International Marching League event Nijmegen Four Days March has a regulation distance of 4 × 50 km over four days for those aged 19 to 49.[4]

In 2021, concerns were raised about planning and medical care available for ultramarathons in China, after dozens of racers died from hypothermia and at least one from a heart attack while competing in an ultramarathon in the Yellow River Stone Forest. The government later announced a ban on "extreme" competitions.[5]

IAU World Record performances[edit]

Until 2014, the IAU maintained lists of world best performances on different surfaces (road, track and indoor). Starting in 2015, the distinction between the surfaces was removed and the records were combined into a single category.[6] Some governing bodies continue to keep separate ultramarathon track and road records for their own jurisdictions.[7]

Starting in January 2022, the IAU began to recognize and ratify performances as IAU World Records. World Athletics also began to ratify the 50k distance as a World Record for both mixed and women, respectively, along with 100k.[8]

Record performances that haven't been ratified yet are as follows.

Patrycja Bereznowska recorded a distance of 401 km in 48 hours in 2018[9] but this performance was not ratified by the IAU. In May 2022, Bereznowska improved the 48 hour mark to 403.32 km.[10]

In February 2022, Camille Herron improved her 12-hour and 100 mile records to 152.1 km and 12:41:11, respectively, while winning the Jackpot 100 US Championship outright.[11]

In March 2022, Stephen Mokoka ran 50 km in 2:40:13.[12] In October 2022, CJ Albertson ran the same distance in 2:38:43.[13]

In September 2022, Aleksandr Sorokin improved his 24-hour record to 319.614 km at the IAU 24 Hour European Championships in Verona, Italy.[14]

The IAU World Records as of August 2022 are as follows.[15]

Men[edit]

Event Record Athlete Date Place
50 km 2:42:07  Ketema Bekele Negasa (ETH) 23 May 2021 South Africa Port Elizabeth, South Africa
50 miles 4:50:08  Jim Walmsley (USA) 4 May 2019 United States Sacramento, USA
100 km 6:05:41  Aleksandr Sorokin (LTU) 23 Apr 2022 United Kingdom Bedford, UK
100 miles 10:51:39  Aleksandr Sorokin (LTU) 7 Jan 2022 Israel Tel Aviv, Israel
1000 km 5d 16:17:00  Yiannis Kouros (GRE) 26 Nov–2 Dec 1984 Australia Colac, Australia
1000 miles 10d 10:30:36  Yiannis Kouros (GRE) 20–30 May 1988 United States New York City, USA
6 hours 98.496 km  Aleksandr Sorokin (LTU) 23 Apr 2022 United Kingdom Bedford, UK
12 hours 177.410 km  Aleksandr Sorokin (LTU) 7 Jan 2022 Israel Tel Aviv, Israel
24 hours 309.339 km[a]  Aleksandr Sorokin (LTU) 28 Aug 2021 Poland Pabianice, Poland
48 hours 473.495 km  Yiannis Kouros (GRE) 3–5 May 1996 France Surgères, France
6 days 1036.800 km  Yiannis Kouros (AUS)[b] 20–26 Nov 2005 Australia Colac, Australia
  1. ^ The distance in the IAU records table (309.339 km) does not match the race result (309.399 km).
  2. ^ Kouros had Australian citizenship for part of his running career. Nationalities here are as given in the IAU records table.

Women[edit]

Event Record Athlete Date Place
50 km 2:59:54  Desiree Linden (USA) 13 April 2021 United States Dorena, Oregon, United States
50 miles 5:40:18  Ann Trason (USA) 23 Feb 1991 United States Houston, USA
100 km 6:33:11  Tomoe Abe (JPN) 25 Jun 2000 Japan Yubetsu-Saroma-Tokoro, Japan
100 miles 12:42:40  Camille Herron (USA) 11 Nov 2017 United States Vienna, IL, USA
1000 km 7d 16:08:37  Paula Mairer (AUT) 29 Sep-6 Oct 2002 United States New York City, USA
1000 miles 12d 14:38:40  Sandra Barwick (NZL) 16–28 Oct 1991 United States New York City, USA
6 hours 85.492km  Nele Alder-Baerens (GER) 11 Mar 2017 Germany Münster, Germany
12 hours 149.130 km  Camille Herron (USA) 9–10 Dec 2017 United States Phoenix, Arizona, USA
24 hours 270.116 km  Camille Herron (USA) 26–27 Oct 2019 France Albi, France
48 hours 397.103 km  Sumie Inagaki (JPN) 21–23 May 2010 France Surgères, France
6 days 883.631 km  Sandra Barwick (NZL) 18–24 Nov 1990 Australia Campbelltown, Australia

IAU World Championships[edit]

There are four IAU World Championships: the IAU 100 km World Championships, IAU 50 km World Championships, IAU 24 Hour World Championship, and the IAU Trail World Championships.[16]

Record holders[edit]

The following is a selected list of world or national-record holding, or world-championship-winning, ultramarathon runners.

Ultramarathons by regions[edit]

Ultra Marathons are run around the world with more than 600,000 people completing them every year.[71]

Africa[edit]

Several ultra-distance events are held in Africa.

  • South Africa hosts a number of notable ultra marathon events.
    • On paved surface: the world's oldest and largest ultramarathon, the 87 kilometres (54 mi) Comrades Marathon. Approximately 12,000 runners complete the Comrades each year, out of approximately 17,000 who start, with 23,961 competing in 2000.[72]
    • The 56-kilometre (35 mi) Two Oceans Marathon in Cape Town in the southern autumn attracts approximately 11,000 runners.
    • The Washie 100 road race is the oldest one hundred miler road race in Africa.
    • Off-road: The Salomon Sky Run is a grueling 100 kilometres (62 mi) self-supported, unmarked trail race held in a particularly scenic part of the country.
    • Trail: The Peninsula Ultra Fun Run (PUFfeR) 80 kilometres (50 mi) supported, unmarked trail run crossing the Table Mountain range in Cape Town South Africa.
    • The Namib Race is a six-stage race that takes place along the Skeleton Coast in Namibia. It is part of the 4 Deserts Ultramarathon Series.
  • The Marathon des Sables is a 6-day stage race which covers 250 kilometres (160 mi) through the Sahara desert in Morocco.
  • The Grand Raid de la Réunion is held annually on Réunion in October, crossing the island over 163 kilometres (101 mi) with an altitude gain of 9,643 metres (31,637 ft). This race attracts 2,350 competitors, with 1,000 runners from overseas.
  • The Spanish Canary Islands off the African coast are the location of some prestigious ultramarathons, including the 46-mile Transvulcania.[73]
  • Egypt has joined the Ultramarathon races with more adding up each year.
    • Hathor 100km is a Trail ultramarathon race in Sinaï. With distances of 50km, 100km, and 130km.[74]
    • Qarun 66km Trail Ultramarathon race. Dated on March of each year in the city of Faiyum with distances 44km and 66km.[75]

Asia[edit]

Ultrarunning has become popular in Asia, and countries such as Japan, Taiwan, and South Korea have hosted IAU World Championships.

  • Japan had its first 100 km event in 1987 as Lake Saroma Ultramarathon and hosted the IAU 100 km World Championship in 1994 (Lake Saroma), 1998 (River Shimanto) and 2005 (Lake Saroma).[76] Japan hosts more than 50 ultramarathon events throughout the year,[77] including the Trans Japan Alps Race (TJAR)[78] (415 kilometres (258 mi) with more than 26,000 metres (16 mi) cumulative altitude gain crossing Japan Alps, crossing Japan's mainland from Japan Sea to Pacific Ocean in 7 days),[79][80] Hasetsune cup (71.5 kilometres (44.4 mi) in steep foggy mountains)[81] and the Ultra-Trail Mt. Fuji (161 kilometres (100 mi) loop around World Heritage Mount Fuji with cumulative altitude gain of about 9,000 metres (5.6 mi)).[82][83]
  • South Korea's first ultramarathon was held in 2000.
  • The Gobi March in northwest China was China's first ultramarathon, first staged in 2003. The Gobi March is part of the 4 Deserts Race Series.[84]
  • India's first ultra marathon, the Bangalore Ultra was held in 2007.[85][86] Since 2010, Indian Himalayas have hosted La Ultra – The High, a 333 km course crossing Khardung La, touted to be the world's highest motorable mountain pass.[87]
  • Soochow International 24H Ultra-Marathon is held since 1999 in Taipei, and is an official IAU-registered event.
  • A night race called the Sundown Marathon has been held in Singapore annually since 2008, over a double marathon distance (84 km) up to 2010 and 100 km since then.[88]
  • Nepal hosts several ultramarathon races,[89] including the Annapurna 100, the Kanchenjunga Ultra Marathon Trail Running Race[90] and the Everest Ultra.[91] Running a total of 1,504 km in a bit more than 24 days, Ryan Sandes and Ryno Griesel set a new fastest known time during March 2018 for the Great Himalaya Trail.
  • Northern Mongolia hosts an annual 100 km summer race, Mongolia Sunrise to Sunset.[92]
  • Malaysia's first ultra trail marathon was founded in November 2011 and is known as the TMBT (The Most Beautiful Thing) in Sabah at Mount Kinabalu, South East Asia's highest mountain. The event has a 55% dropout rate and is a 3-point qualifying race for UTMB and a 2-point qualifying race for the 55-kilometer category of the event. This was followed by the Beaufort Ultra Marathon in Sabah organized in 2012 and a 60-kilometer endurance run under 35-39-degree Celsius heat with a 60% finish rate amongst runners.[93] First 100 miles ultra marathon road race, Putrajaya 100 Miles, was held on 22–23 November 2014.
  • Indonesia's first ultramarathon race, Mount Rinjani Ultra (52K), was held in August 2013 and Indonesia's first 100K & 160K ultramarathon race, Bromo Tengger Semeru 100 Ultra, was held in November 2013. Tambora Challenge (320 km) held from 2015
  • In the Cebu, Philippines, an All-Women Ultra Marathon race covering a distance of 50 kilometers is held annually on the weekend of International Women's Day since 2012.[94]
  • Clark Freeport Zone in the Philippines is the venue for two of the Philippines' premier ultramarathon events. The Clark Miyamit Ultra, known as CM50 a 60K and 50Mile Trail Ultramarathon that takes runners to traverse from Clark to the Aeta Villages, lahar bed, mountain ranges near Mt. Pinatubo and the iconic Miyamit Falls. Cardimax – Clark Ultramarathon is a road ultramarathon of 50K and 100K distance which brings and gathers ultramarathoners from aspiring ones to the most competitive elites.
  • In Israel, two major ultramarathon races are Mount to Valley relay race; over 215 km, from the hills of the Upper Galilee to the Jezreel Valley, and the Valley Circle race in the Jezreel valley; contains several distances, including 160 km and 200 km.

Oceania, Australia, and New Zealand[edit]

Australia and New Zealand are hosts to some 100 organized ultramarathons each year. Additionally a handful of runners have run the entire length of New Zealand, a distance of around 2,200 kilometres (1,400 mi).[95]

Australia

In Australia, the Westfield Ultra Marathon was an annual race between Sydney and Melbourne contested between 1983 and 1991. Greek runner Yiannis Kouros won the event five times during that period. Australia is also the home of one of the oldest six-day races in the world, the Cliff Young Australian 6-day race, held in Colac, Victoria. The race is held on a 400-meter circuit at the Memorial Square in the centre of Colac, and has seen many close races since its inception in 1984. The 20th Cliff Young Australian six-day race was held between 20 and 26 November 2005. During that event, Kouros beat his existing world record six-day track mark and set a new mark of 1,036.851 kilometres (644.269 mi). The Coast to Kosciuszko inaugurated in 2004, is a 246-kilometre (153 mi) marathon from the coast to the top of Mount Kosciuszko, Australia's highest mountain.

Australia has seen a steep growth in ultrarunning events and participants in recent years. Many new races have come into inception, covering a range of ultramarathon distances from 50 km right through to multi-day events. The cornerstone of Australian Ultra events being such races as Ultra-Trail Australia 100, The Great North Walk Ultras, Surf Coast Century, Bogong to Hotham, Alpine Challenge, GC50 Run Festival, and the Cradle Mountain Run.[96][97] The Australian Ultra Runners Association (AURA) has a comprehensive list and links of events and their respective results.[98]

New Zealand

New Zealand's first ultramarathon, called the Kepler Challenge, was held on a 60 kilometres (37 mi) trail through Fiordland National Park. It has been running since 1988 and is one of the country's most popular races. New Zealand's Northburn 100 ultra mountain run is the first 100-mile (160 km) race through the Northburn Station. The Te Houtaewa Challenge has a 62 km race on ninety mile beach, Northland. The runners have to contend with rising tides and soft beach sand and the March race dates often means the race is run in the cyclone season. In 2014 the ultramarathon was postponed because of Cyclone Lucy. The Tarawera Ultramarathon is currently one of the most competitive ultras in New Zealand and part of the Ultra-Trail World Tour.[99]

In December 2013 in Auckland, Kim Allan ran 500 km in 86 hours, 11 minutes, and 9 seconds, breaking the 486 kilometres (302 mi) women's record.[100]

In April 2013, a Feilding man, Perry Newburn, set a new New Zealand record by running 483 kilometres (300 mi) without sleep at Feilding's Manfield Park.[101]

Ultramarathon running in New Zealand has a national body: the New Zealand Ultrarunners Association.

Oceania

New Caledonia Trail Festival[102] has several annual ultramarathon including the Ultra Trail New Caledonia 136 km / 6 000m D+ and the Endurance Shop Trail race 70 km / 3 000m D+ on Pentecost long Week end. The Trail des Cagous is another 60 km ultramarathon held in April.

Papua New Guinea has the Kokoda Challenge Race, an annual 96 km endurance race held in late August that runs the length of the historic Kokoda Track.[103]

Papua New Guinea also has the Great Kokoda Race, a multi-stage 96 km (3-day) race held in early July where competitors run or walk the length of the Kokoda Track.[104]

Europe[edit]

In Europe, ultrarunning can trace its origins with early documentation of ultrarunners from Icelandic sagas[citation needed], or ancient Greece from where the idea of the Marathon, and the Spartathlon comes. The history of ultrarunners and walkers in the UK from the Victorian Era has also been documented. The IAU hosts annual European Championships for the 50 km, 100 km and 24 hours. The European Ultramarathon Cup is an annual cup event covering some of the biggest ultramarathon races in Europe.[105] Also worth mentioning is the ultramarathon CajaMar Tenerife Bluetrail, the highest race in Spain and second in Europe,[106] with the participation of several countries and great international repercussions. Besides trail ultramarathons, Europe features large road ultramarathons such as Spartathlon and the Millau 100K, which has gathered thousands of runners for the past 50 years.

There are over 300 ultramarathons held in Europe each year,[107][citation needed]. This includes the Harz Run in the Harz Mountains, the Irish Connemarathon, the British Spine Race and Welsh Dragon's Back Race which covers 315 km with 15,500m of height gain.[108]

The UTMB, through France, Italy and Switzerland, has been considered the world's most competitive trail ultra.[109] The other races in the UTMB festival, including the CCC, TDS and OCC, are also significant events in the ultrarunning calendar.[110]

In 2021 the Megarace will be held. The Megarace will be the world's longest nonstop A-B trail race. The race is 1001 km and goes on trails through Germany, Czech Republic and Austria. The runners have 13 days and 15 hours to cover the distance. Due to Covid, 2021 the course will be modified to only go through Germany. The original course will be in 2022.[111]

Antarctica[edit]

Due to logistics and environmental concerns there are only a handful of ultramarathons held in Antarctica, and travel costs can mean entrance fees as high as $14,000.[112] Ultramarathons in Antarctica include: The Last Desert, part of the 4 Deserts Race Series, a multi-stage footrace, and the Antarctic Ice Marathon – a marathon and 100-kilometer race.

North America[edit]

There are several hundred ultramarathons held annually in North America. One of the best known is the Western States Endurance Run, the world's oldest 100-mile trail run that is still held. The race began in 1977, founded by Wendell Robie, of Auburn California.[113]

The first mountain trail ultramarathon held in the United States was the 1911 Mount Baker Race (50K), in Bellingham, Washington. Runners raced by car or train to the trailheads, ran up and down Mount Baker 10,000 feet, and then returned to the city.[114]

An early ultramarathon was held in Mexico in 1926, and at the time was part of the Central American Games. Tomas Zafiro and Leoncio San Miguel, both Tarahumara Indians, ran 100 km from Pachuca to Mexico City in 9 hours and 37 minutes. At the time, the Mexican government petitioned to include a 100 km race in the 1928 Summer Olympics in Amsterdam;.[115]

In 1928, sports agent C. C. Pyle organized the first of two editions of the 3,455-mile-long Bunion Derby (the first went along U.S. Route 66 from Los Angeles to Chicago before heading toward New York; the 1929 Derby reversed the route). Neither the race nor the accompanying vaudeville show was a financial success.[116]

In the 1980s, Gary "Lazarus Lake" Cantrell and Karl "Raw Dog" Henn conceived the Barkley Marathons, an annual trail race held in March or April in Frozen Head State Park, Tennessee. The course is approximately 20 miles long with approximately 11,000 feet of vertical climb, and runners have 60 hours to complete five laps. The run is notorious not only for its difficulty, but also for its secretive nature; entrants must undergo a selection process and entry dates and requirements are not announced, meaning entrants rely on word-of-mouth for details on how to enter. The first Barkley Marathons took place in 1986, and as of 2022, only fifteen runners have ever completed the 100 mile course.

Since 1997, runners have been competing in the Self-Transcendence 3100 Mile Race, which is billed as the longest official footrace in the world. They run 100 laps a day for up to 50 days around a single block in Queens, NY, for a total distance of 3,100 miles (5,000 km).[117] The current recordholder is Ashprihanal Pekka Aalto, at 40 days 09:06:21 for a daily average of 76.776 miles (123.559 km) in 2015.

The latest Trans-American Footrace (2015) winner was Robert HP Young (Marathon Man UK), winning in a time of 482 hours and 10 minutes.[118]

In April 2006, the American Ultrarunning Hall of Fame was established by the American Ultrarunning Association (AUA). Candidates for the Hall of Fame are chosen from the 'modern era' of American ultras, beginning with the New York Road Runners Club 30 Mile race held in 1958. The Inaugural inductees were Ted Corbitt, a former US Olympian, winner of the aforementioned race in 3:04:13, and co-founder of the Road Runners Club of America, and Sandra Kiddy, who began her ultra career at age 42 with a world record at 50 kilometers, 3:36:56, and who went on to set a number of US and world ultra records.[119]

South America[edit]

There are a small number of ultramarathons in South America, but participation in the sport is increasing. The Brazil 135 Ultramarathon is a single-stage race of 135 miles (217 km) with a 60-hour cutoff, held in Brazil. This is a Badwater "sister race".[120] Several ultramarathons are held in Chile and with both local and international participation.[121] Ultramarathons held in Chile include:

  • Atacama Xtreme 50K, 80K and the first 100 Miles in Chile. One loop for each distance starting and finishing in San Pedro de Atacama at an avg. of 2,400 above sea level.[122]
  • The Endurance Challenge, a 10K, 21K, 50K and 80K trail running race held in the Andes mountain range near Santiago. It is part of the global Endurance Challenge circuit. The race seeks to promote the sport, outdoor activity and the use of mountain trails, taking care to have the lowest impact possible on the environment.
  • The Lican Ray-Villarrica Ultramarathon, a 70 km marathon that starts in Lican Ray, climbs Villarrica Volcano and ends in downtown Villarrica.
  • The Atacama Crossing, established in 2004, a 250 km (155-mile) ultramarathon which takes place in the Atacama desert, around San Pedro de Atacama, Chile,[123] and crosses through the driest place on earth. There are six stages in seven days, with almost four marathons run in the first four days, then a 74 km stretch, then a rest day and a final stage of 11 km. It is part of the 4 Deserts Series. The race covers rugged terrain, with a harsh climate and an altitude that averages 2500 m (8000 ft). The race uses the town of San Pedro de Atacama as its host town, and in 2012 the race began at its highest point of over 3,000m in the Arcoiris Valley.
View from the Atacama Crossing 2011.
  • The Patagonian International Marathon, organized by NIGSA, takes place in Torres del Paine National Park, southern Chilean Patagonia. The event features four race distances: an ultramarathon (63 km), marathon (42 km), half marathon (21 km) and a 10K. Each distance has a different starting point, but everyone finishes in the same place. The event has the secondary goal of promoting the conservation of Chilean Patagonia and contributing to the sustainable development of the region through the planting of trees in the Torres del Paine National Park through the "Corre y Reforesta" (Run and Reforest) campaign[124] run by the organization "Reforestemos Patagonia" (Let's Reforest Patagonia)[125]
  • The Rapa Nui GrandTrail, an 80k ultramarathon that takes place on Easter Island, Valparaíso Region, Chile. This exotic trail, far out in the Pacific Ocean, takes in the famous Moai statues of the island.[126]
  • "Extreme Challenge Peru Ultra" at 210 km, 105 km, 50 km and 25 km. This is a race where participants run in 5 consecutive days traveling to Sierra (9,000 to 11,000 feet elevation), desert (running on top desert dunes), coast and last day at the high elevation jungle (5,900 feet elevation). Some participants also run shorter distances.

Argentina

There are several ultramarathon races in Argentina.

La Mision has been going on for almost 15 years. There are different editions, one in Villa La Angostura in Patagonia with 3 distances. 110 km with cumulative altitude gain of about 4500m, 160 km with cumulative altitude gain of about 8000m and 200 km with cumulative altitude gain of about 9000m. There is other edition of the race (Short & Half) in Villa San Javier, Cordoba with 2 distances, 35k and 70k.

In April 2019 for the 1st time UTMB took place in Ushuaia (Ushuaia by UTMB) A very tough race facing the wild Patagonia weather with 4 different distances, 35k, 50k, 70k and 130k. The race brings together in one competition all the landscapes and geographies of the southern Andes (forests, rocky terrains, mountains, hills, glaciers, lakes, rivers and wetlands, among others) The race has a technical, non-stop format and is ruled by the principle of semi-autonomy.

Cerro Champaqui in Cordoba is the landscape of different races. Champa Ultra Race with 5 different distances, 8k / 18k / 26k / 42k and 62k. Also the UTACCH – Ultra Amanecer Comechingón with 7 different distances, 16k, 26k, 42k, and 4 ultras of 55k, 70k, 110k and 100 miles.

Ushuaia, at "the end of the world" also host Ultra Maratón Glaciar Martial with 3 different distances, 10k, 25k and 50k.

International Trail Running Association[edit]

Many ultramarathon organizers are members of the International Trail Running Association (ITRA), an organization that promotes values, diversity, health and safety during races, as well as working to further the development of trail running and helps to coordinate between the national and international bodies with an interest in the sport. ITRA also evaluates the difficulty of specific ultramarathon routes according to a number of criteria, such as the distance, the cumulative elevation gain, and the number of loops and stages. ITRA maintains a calendar of ultramarathon events.

See also[edit]

References[edit]

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