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.
Dathan James Ritzenhein is a retired American long-distance runner, and current head coach of the On Athletics Club (OAC). He held the American record in the 5,000 metres (12:56.27) from 2009 to 2010, until it was broken by Bernard Lagat. He is a three-time national cross country champion with wins at the USA Cross Country Championships in 2005, 2008 and 2010. Formerly a Nike athlete for the majority of his professional career, Dathan joined the Hansons-Brooks Distance Project team in 2017. In early May 2020, he announced his retirement from competition. He signed with the Swiss shoe brand On shortly thereafter in June 2020 and currently acts as the coach for the OAC in Boulder, Colorado.
The 3000 metres or 3000-metre run is a track running event, also commonly known as the "3K" or "3K run", where 7.5 laps are run around an outdoor 400 m track, or 15 laps around a 200 m indoor track.
Hellen Onsando Obiri is a Kenyan middle- and long-distance runner. She is the only woman to have won world titles in indoor track, outdoor track and cross country. Obiri is a two-time Olympic 5,000 metres silver medallist from the 2016 Rio and 2020 Tokyo Olympics, where she also placed fourth over the 10,000 metres. She is a two-time world champion after winning the 5,000 m in 2017 and again in 2019, when she set a new championship record. Obiri also took world bronze for the 1,500 metres in 2013 and silver in the 10,000 m in 2022. She won the 3,000 metres race at the 2012 World Indoor Championships, claimed silver in 2014, and placed fourth in 2018. She is the 2019 World Cross Country champion. Obiri triumphed in the 2023 Boston Marathon, her second marathon race. She places fifth in the half marathon on the world all-time list.
Eilish McColgan is a Scottish middle- and long-distance runner. She is the 2022 Commonwealth Games 10,000 metres champion with the Games record, and 5000 metres silver medallist. McColgan is a four-time European Championships medallist, winning silver medals for the 5000 m in 2018 and 10,000 m in 2022, bronze in the 5000 m in 2022, and a bronze for the indoor 3000 metres in 2017. She is the European record holder for the 10 km road race, and the British record holder for the 5000 m, 10,000 m, 5 km and half marathon. She also holds the European best in the 10 miles on the roads.
William "Woody" Kincaid is an American long-distance runner. He is a two-time national champion in the 10000 metres, with victories at the USA Outdoor Track and Field Championships in 2021 and 2023. He has held the North American indoor record in the 5000 metres (12:51.61) since 2023. Kincaid represented the United States at the 2020 Summer Olympic Games, the 2022 World Athletics Championships, 2023 World Athletics Championships, and the 2024 Summer Olympic Games. He won a gold medal in the 5000 metres at the 2022 NACAC Championships.
Jakob Ingebrigtsen is a Norwegian middle- and long-distance runner, who is the current world record holder in the indoor 1500 metres and the 2000 metres, and holds the world best time over the two mile distance. Ingebrigtsen is a two-time Olympic champion, having won a gold medal in the 1500 m at the 2020 Tokyo Olympics, setting an Olympic and European record, and a gold medal 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, and is one of only three men to run a sub-3:30 1500 m, sub-7:30 3000 m and a sub-12:50 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.
Josh Kerr is a British middle-distance runner who competes primarily in the 1500 metres. He won a gold medal in the event at the 2023 World Championships, a silver medal at the 2024 Summer Olympics, a bronze medal at the 2020 Summer Olympics, and a gold medal at the 2015 European Junior Championships. Indoors he is the 2024 World Indoor champion in the 3000 metres. He holds the world record time in the indoor 2 mile and the European record in the indoor mile, along with the British record in the outdoor 1500m and mile.
Joe Klecker is an American long-distance runner. After a successful collegiate career with the Colorado Buffaloes he turned professional in 2020 joining the On Athletics Club coached by Dathan Ritzenhein. Klecker holds personal bests of 3:37.00 for 1500m, 7:34.14 for 3000m, 12:54.99 for 5000m, and 27:07.57 for 10000m, all set as a part of the On Athletics Club.
Alicia Monson is an American long-distance runner who primarily competes in the 5000 meters and 10,000 meters. She holds the North American record over the 5000 m, 10,000 m, and two mile distances, all set as part of the On Athletics Club under coach Dathan Ritzenhein.
Cole Hocker is an American middle- and long-distance runner who specializes in the 1500 meters. He won the gold medal in the event at the 2024 Summer Olympics in Paris, setting an Olympic record and a North American area record of 3:27.65.
Yared Nuguse is an American professional middle-distance runner who specializes in the 1500 meters. He was the 2019 NCAA Division I champion in the event and bronze medalist from the 2024 Summer Olympics. Nuguse is the North American outdoor record holder over the one mile distance, and the North American indoor record holder for the 1500 meters, one mile and 3000 meters.
Mike Foppen is a Dutch middle- and long-distance runner. He finished fifth in the 5000 metres at the 2022 European Athletics Championships.
Hobbs Kessler is an American middle-distance runner. He competes professionally for Adidas, having turned professional directly after high school. He holds the North American U20 record in the 1500 meters, having run 3:34.36 in 2021 during his senior year in high school.
Dakotah Marie Lindwurm is an American professional long-distance runner who qualified to represent the United States in the Women's Marathon at the 2024 Summer Olympics in Paris, France. Lindwurm gained notoriety after winning back-to-back victories at Grandma's Marathon in Duluth, Minnesota in 2021 and 2022. Her victory in 2022 made her the 12th fastest U.S. women's marathoner of all time.
Amane Beriso Shankule is an Ethiopian long-distance runner. In 2023, she won the marathon at the 2023 World Athletics Championships in Budapest. In 2022, she improved her marathon personal best by nearly six minutes to take the win at the 2022 Valencia Marathon, placing third on the world all-time list. Beriso finished second at the 2023 Boston Marathon.
