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.
The 10K run is a long-distance road running competition over a distance of ten kilometres. Also referred to as the 10K road race, 10 km, or simply 10K, it is one of the most common types of road running event, alongside the shorter 5K and longer half marathon and marathon. It is usually distinguished from the 10,000 metres track running event by stating the distance in kilometres, rather than metres.
Joshua Kiprui Cheptegei is a Ugandan long-distance runner. Cheptegei is the current world record holder for the 5000 metres and the 10,000 metres, and holds the world best time over the 15 kilometres distance. Cheptegei is the reigning Olympic champion in the 5000 m and the reigning three-time World champion in the 10,000 m. Cheptegei also won a gold medal in the 5000 m and 10,000 m at the 2018 Commonwealth Games and at the 2019 IAAF World Cross Country Championships.
Peres Jepchirchir is a Kenyan professional long-distance runner who competes mainly in road running competitions. She won the gold medal in the women's marathon at the 2020 Tokyo Olympics. Jepchirchir was the champion at the 2016 and 2020 World Half Marathon Championships. She claimed victories at the 2021 New York City and 2022 Boston Marathon and finished third at the 2023 London Marathon. She claimed a further victory at the 2024 London Marathon, finishing in two hours, 16 minutes and 16 seconds and breaking the women’s only world record.
Jacob Kiplimo is a Ugandan long-distance runner. He is the world record holder for the half marathon, which he set on 21 November 2021 in Lisbon with a time of 57:31. He is also the 2020 Tokyo Olympic 10,000 metres bronze medallist and won bronze in the event at the 2022 World Athletics Championships. Kiplimo earned gold medals for the 5000 metres and 10,000 m at the 2022 Commonwealth Games. He is the 2020 World Half Marathon champion. He won silver and gold medal at the 2019 and 2023 World Cross Country Championships respectively.
The 15K run is a long-distance foot race. It is a rarely held race that is not recognized as an Olympic event. The overall world best time for men was set by Jacob Kiplimo en route the Lisbon Half Marathon. Excluding en route times both the world best for men and women were set at the Zevenheuvelenloop in Nijmegen, Netherlands. The world best for men is held by Joshua Cheptegei of Uganda who ran a time of 41:05. The women's world best is held by Letesenbet Gidey of Ethiopia who ran a time of 44:20.
The world record in the half marathon has been officially recognized since 1 January 2004 by the International Association of Athletics Federations (IAAF), the international governing body for the sport of athletics. A total of five men's world records and six women's world records have been officially ratified since that date. The IAAF officially recognized the fastest times before that date as a "world best" from 1 January 2003 onwards. Before that date, the IAAF did not recognize any road running world records, though the concept of a world record was recognized by other organizations, such as the Association of Road Racing Statisticians (ARRS).
The 20,000 metres is a rarely contested long-distance running event in track and field competitions; most world records in the event have been set during half marathons and one-hour races, as a half marathon is roughly 21,000 meters.
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.
