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An ultramarathon, also called ultra distance or ultra running, is any 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.
In 2012 the foremost competition in athletics was the 2012 Summer Olympics in London. The International Association of Athletics Federations held four other global level competitions in 2012: the 2012 IAAF World Indoor Championships, 2012 IAAF World Race Walking Cup, 2012 World Junior Championships in Athletics and the 2012 IAAF World Half Marathon Championships.
Jacquelyn Camille Herron is an American ultramarathon runner, scientist, coach, and a four-time International Ultrarunner of the Year. She is the first and only athlete to win all three of the road IAU World Championships for 50K, 100K, and 24 Hours. In 2017, she became only the third American to win the Comrades Marathon and later broke Ann Trason's 100-mile Road World Record by over an hour in 12:42:40.
Harvey Sweetland Lewis is an American ultrarunner.
The IAU 24 Hour World Championship is an international 24-hour run competition organised by the International Association of Ultrarunners (IAU). Since 2015, the World Championship has alternated annually with the IAU 100 km World Championships.
Lizzy Hawker is a British endurance athlete. She has been dubbed as the Queen of the mountains, running ultramarathons while climbing the heights of Mount Everest. Some of her career highlights include five wins at the Ultra-Trail du Mont-Blanc (UTMB), former World Record holder for 24 Hours, and winner of the 2006 IAU 100 km World Championships.
The 2018 IAAF World Half Marathon Championships took place on 24 March 2018 in Valencia, Spain. It was the 23rd edition of the event and the 2nd time it was held in Spain.
The backyard ultra or last one standing is a form of ultramarathon race where competitors must consecutively run the distance of 6.706 kilometres (4.167 mi) in less than one hour, which is a pace of 100 miles per 24 hours. The race is over when only one runner remains to complete a lap. This runner is marked as the winner and only finisher, with all other runners receiving a "DNF". The runner who completes the second-most laps in a race is often referred to as the "assist", in the sense that their effort is ultimately what determines how long the race is allowed to continue--there is no predefined end length or time in a backyard ultra, as long as multiple runners can complete each loop within an hour.
Courtney Dauwalter is an American ultramarathon runner and former teacher. Widely regarded as one of the world's best female trailrunners, Dauwalter became in 2023 the first person ever to win Western States 100, Hardrock 100 and the UTMB, three iconic 100-mile races, in the same year.
The IAU European 24 Hour Championships is a biennial long-distance running competition in the 24-hour run for athletes from Europe. Organised by the International Association of Ultrarunners, it was first held in 1992 as an annual competition known as the IAU European 24 Hours Challenge. The establishment of the IAU 24 Hour World Championship in 2003 saw the European event staged within the global race until the competitions were each recast as separate, biennial championships, with the world event in odd years and the European one in even years. The competition is typically a road running one, though the championships was contested on the track in 1999.
Big's Backyard Ultra is the original backyard ultra, invented by Gary "Lazarus Lake" Cantrell of Bell Buckle, Tennessee. Participants run a 4.167-mile loop every hour, and are eliminated if they fail to complete a loop in an hour. The path of the loop is on trails during the day and along a road after dark. The distance of each loop is equal to 100 divided by 24, so that a competitor runs 100 miles for a full day of competition. There is no predefined finish. The winner is the competitor who completes a loop that no other competitors complete. If no competitor outlasts every other competitor, there is no winner.
Gary Cantrell, known as Lazarus Lake, is an endurance race designer and director. His races include the Barkley Marathons, Big's Backyard Ultra, the Barkley Fall Classic, Vol State 500K, A Race for the Ages, the Last Annual Heart of the South, and the Strolling Jim 40. In 2018, Lake covered the United States on foot, starting in Rhode Island and ending in Oregon.
References
- ↑ "Big Dog's Backyard Ultra - Johan Steene Last Man Standing -". multidays.com. 2018-10-23. Retrieved 2019-03-06.
- ↑ "Han sprang 46 mil på 68 timmar – svenske Johan slog världsrekord". www.expressen.se (in Swedish). 23 October 2018. Retrieved 2019-03-06.
- ↑ "Meet the inspiring Canadians at Big's Backyard Ultra". Canadian Running Magazine. 2018-10-25. Retrieved 2019-03-06.
- ↑ "Bereznowska and Steene the favourites for IAU 24-Hour European Championships| News | iaaf.org". www.iaaf.org. Retrieved 2019-03-06.
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