World records in the marathon are ratified by World Athletics, the international governing body for the sport of athletics.
A half marathon is a road running event of 21.0975 kilometres —half the distance of a marathon. It is common for a half marathon event to be held concurrently with a marathon or a 5K race, using almost the same course with a late start, an early finish or shortcuts. If finisher medals are awarded, the medal or ribbon may differ from those for the full marathon. The half marathon is also known as a 21K, 21.1K, or 13.1 miles, although these values are rounded and not formally correct.
Moses Cheruiyot Mosop is a Kenyan middle and long distance athlete. He competed for Kenya at the 2004 Olympic Games and went on to take 10,000 metres bronze at the 2005 World Championships in Athletics. He has also been successful in cross country running, having won the silver at the 2007 IAAF World Cross Country Championships as well as team gold with Kenya in 2007 and 2009.
Eliud Kipchoge is a Kenyan long-distance runner who competes in the marathon and formerly specialized in the 5000 metres. Kipchoge is the 2016 and 2020 Olympic marathon champion, and was the world record holder in the marathon from 2018 to 2023, until that record was broken by Kelvin Kiptum at the 2023 Chicago Marathon. Kipchoge has run four of the 10 fastest marathons in history.
Lornah Kiplagat is a Dutch professional long-distance runner. She was born in Kabiemit, Rift Valley Province, Kenya and moved to the Netherlands in 1999. She gained Dutch citizenship in 2003 and has competed for the Netherlands ever since. She used to run not only road events but also in cross country and track and field.
Edna Ngeringwony Kiplagat is a Kenyan professional long-distance runner. She was the 2011 and 2013 World Champion in the marathon. She established herself as an elite marathon runner with wins at the Los Angeles and New York City Marathons in 2010. Her personal best for the distance is 2:19:50 hours, set at the London Marathon in 2012. At age 37, Kiplagat won the 2017 Boston Marathon in a time of 2:21:52 hours, and won the marathon silver medal at the IAAF World Championships in London. At age 39, she was second at the 2019 Boston Marathon and fourth in the event at the following World Championships. At age 41, she won the 2021 Boston Marathon, becoming the oldest-ever winner of a World Marathon Major.
Florence Jebet Kiplagat is a Kenyan professional long-distance runner. She is a two-time world champion, having won at the 2009 IAAF World Cross Country Championships and the 2010 IAAF World Half Marathon Championships. She was the world record holder for the women's half marathon with a time of 1:05:09 hours until it was broken by Peres Jepchirchir on 10 February 2017 at the RAK Half Marathon.
Gilbert Kipruto Kirwa is a Kenyan athlete who specialises in long-distance running and the marathon. His personal best for the marathon is 2:06:14 hours and has won races in Vienna and Frankfurt.
Wilson Kipsang Kiprotich is a Kenyan professional athlete who specialises in long-distance running, competing in events ranging from 10 km to the marathon. He was the bronze medallist in the marathon at the 2012 Summer Olympics. He is the former world record holder in the marathon with a time of 2:03:23, which he set at the 2013 Berlin Marathon. He has run under 2 hours 4 minutes for the marathon on four occasions.
The Women's marathon at the 2011 World Championships in Athletics was held starting and finishing at Gukchae – bosang Memorial Park on 27 August. A total of 54 runners began the race and twenty three nations were represented.
The 2014 London Marathon was the 34th running of the annual marathon race in London, England, which took place on Sunday, 13 April. The men's elite race was won by Kenyan Wilson Kipsang Kiprotich and the women's race was won by Kenyan Edna Kiplagat. The men's wheelchair race was won by Switzerland's Marcel Hug and the women's wheelchair race was won by American Tatyana McFadden. Kipsang and McFadden set course records.
Jakob Ingebrigtsen is a Norwegian middle- and long-distance runner who is the current world record holder in the short track 1500 metres, the 2000 metres and the 3000 metres, and is also the current world best holder over the two mile distance. Ingebrigtsen is a two-time Olympic champion, having won gold medals in the 1500 m at the 2020 Tokyo Olympics, setting what was then an Olympic and European record, and in the 5000 metres at the 2024 Paris Olympics. He is also a two-time World champion, winning gold medals in the 5000 m in 2022 and 2023 and a six-time European champion, winning gold medals in the 1500 m and 5000 m in 2018, 2022, and 2024. In addition to the 1500 m, Ingebrigtsen holds European records in the mile, 3000 m, and 5000 m.
Letesenbet Gidey is an Ethiopian long-distance runner. In the 10,000 metres, she is the 2020 Tokyo Olympic bronze medallist, 2019 World silver medallist, and 2022 World champion. Her record of 29.01.03 is the second fastest time ever, just recently broken by Kenyan rival Beatrice Chebet. Letesenbet is the first athlete ever, male or female, to hold the 5000m, 10000m, and half marathon world records, simultaneously.
Ruth Chepng'etich is a Kenyan road runner who is the current women's world record holder in the marathon, with a time of 2:09:56 set at the 2024 Chicago Marathon. Chepng'etich is the 2019 world champion in the marathon, and is a three time winner of the Chicago Marathon, having won in 2021, 2022 and 2024, where she set the world record. She is the first woman to break the 2:11 and 2:10 barriers in the marathon, and also holds the sixth-fastest mark of all time for the half marathon, at 1 hour 4 minutes and 2 seconds.
The 25K run is a long distance running footrace that is between the distance of a half marathon and a marathon. It was formerly an official world record distance in road running by World Athletics, but has since been downgraded to world best status. Separately, the Association of Road Racing Statisticians retains world records in the 25K distance. The ARRS holds different standards for records than World Athletics, with exclusions for certain point-to-point races and mixed sex races. As a result its women's world record is 1:26:34 by Nancy Conz, set in 1982.
Benson Kipruto is a Kenyan long-distance runner. He won the 125th Boston Marathon in 2021 (2:09:51), the 2022 Chicago Marathon (2:04:24) and the 2024 Tokyo Marathon in a personal best of 2:02:16, where he also set a new course record. Kipruto finished third at both the 2022 and 2023 Boston Marathon with times of 2:07:27 and 2:06:06 respectively.
Kelvin Kiptum Cheruiyot was a Kenyan long-distance runner who currently holds the marathon world record. As of 2024, he holds three of the seven fastest marathons in history, and was ranked first among the world's men's marathon runners at the time of his death.
The 2023 London Marathon was the 43rd running of the annual London Marathon on 23 April 2023. It was the first time since 2019 that the event was run in the spring, as the previous three races were run in autumn due to the COVID-19 pandemic.
The 2023 Chicago Marathon was the 45th edition of the annual marathon race in Chicago, held on Sunday, October 8, 2023. A Platinum Label marathon, it was the fifth of six World Marathon Majors events that were held in 2023. The race also hosted the age group world championships for the year.
The 2024 Chicago Marathon was the 46th edition of the annual Chicago Marathon, held on October 13, 2024. The race is the fifth of six World Marathon Majors held in 2024, and is a platinum label race.
Kenya 
