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.
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.
Abraham Kosgei Chebii is a former Kenyan runner who specialized in the 5000 metres. His personal best time is 12:52.99 minutes, achieved in June 2003 in Oslo.
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.
Koren Jelela, also known as Koren Jelila Yal, is an Ethiopian long-distance runner.
The Great South Run is an annual 10 mile (16.09 km) road running race which takes place in Portsmouth, United Kingdom providing an intermediate distance between the ten kilometre and the half marathon (21.097 km) runs. Launched in 1990, it is part of the Great Run series created by former British athlete Brendan Foster. It was originally held in Southampton, but the race moved to its current course after the first edition.
Luke Kibet Bowen is a Kenyan long-distance runner who specializes in the marathon. He won the marathon race at the 2007 World Championships.
Salina Jebet Kosgei is a long distance runner from Kenya. She is a Commonwealth Games gold medalist, has competed at the Olympics and has won various marathons, including the 2009 Boston Marathon.
Leah Malot is a runner from Kenya. She is known for her long career. She started her international career by winning a gold medal at the 1987 All-Africa Games, aged only 15. A decade later she was a constant competitor at the IAAF World Cross Country Championships.
Abel Kirui is a long-distance runner from Kenya who competes in marathons. He had back-to-back wins in the World Championship marathon in 2009 and 2011. Kirui won in 2009 with a time of 2:06:54, then defended his title with a winning margin of two minutes and 28 seconds – the largest ever margin at the World Championship event. He earned the silver medal in the 2012 London Olympic marathon.
Kenneth Mburu Mungara, also known as Kennedy Mburu, is a Kenyan long distance runner who specialises in the marathon. He holds the Master's 40–44 age group world record in the marathon.
The Florence Marathon is an annual full-length marathon race held in late November in Florence, Italy, since 1984.
Amos Tirop Matui is a Kenyan professional long-distance and marathon runner. He has won marathons on four continents with career highlights including consecutive wins and course records at the Singapore Marathon, a win at the Country Music Marathon in 2009, and a bronze medal for Kenya over the distance at the 2010 Commonwealth Games.
Irene Jerotich Kosgei[nb] is a Kenyan long-distance runner who specialises in the marathon. Her first victory over the distance came at the Nairobi Marathon in 2006 and she won the race again in 2010 with a course record and personal best time of 2:28:47. She became the first Kenyan woman to win the Commonwealth marathon title at the 2010 Commonwealth Games in New Delhi.
Irene Mogaka Kemunto is a Kenyan long-distance runner who competes in the marathon.
Jonathan Kosgei Kipkorir is a Kenyan long-distance runner who competes in road running competitions, including marathons. He is a two-time winner of the Venice Marathon, with consecutive wins in 2006 and 2007, and won the 2010 Beppu-Ōita Marathon. He also competes over the half marathon and has wins from the Rome-Ostia Half Marathon and Porto Half Marathon. His personal best in the marathon is 2:07:31 while he has run 1:00:19 for the half marathon distance.
Hellen Wanjiku Mugo is a Kenyan long-distance runner who competes in marathon races. She has won marathons in Belgrade, Carpi, Mombasa and Košice. Her personal best is 2:27:16 hours, set in Carpi.
Stephen Kosgei Kibet is a Kenyan long-distance runner who competes in road running competitions from the 10K run to the marathon. His half marathon personal best of 58:54 minutes ranks him in the top ten of all-time for the distance. His best of the marathon distance is 2:08:05 hours.
The 10-mile run is a long-distance running event over a distance of ten miles (16.1 kilometres). It can be held on a road course or on a running track. Also referred to as a 10-miler or 10 miles run, it is a relatively common distance in countries that use the mile as a unit of measure. Ten miles is roughly an intermediate distance between the 10K run and the half marathon (21.1 km). The level of endurance required to run the distance means it attracts more seasoned runners than shorter events and usually requires a period of preparation for first-time attempts.
The 2021 London Marathon was the 41st running of the annual London Marathon on 3 October 2021. Due to the COVID-19 pandemic, the race was postponed from April until October to maximise the chances of a mass participation event.
Luke Kibet 
