Libya competed at the 2000 Summer Olympics in Sydney, Australia. The country's participation in Sydney marked its sixth appearance at a Summer Olympics since its debut at the 1964 Games. The delegation included three male athletes; marathon runner Adel Edeli, judoka Tarek Ayad and Nizar Mohamed Naeeli in taekwondo. Edeli did not finish his race, while Ayad and Naeeli were both eliminated in the first bouts of their respective tournaments.
Ryan Hall is a retired American long-distance runner who holds the U.S. record in the half marathon. With his half marathon record time (59:43), he became the first U.S. runner to break the one-hour barrier in the event. He is also the only American to run a sub-2:05 marathon. However, this time is not eligible to be a record due to the course being point-to-point and a net-downhill course. Hall won the marathon at the 2008 United States Olympic trials and placed tenth in the Olympic marathon in Beijing.
Sir Mohamed Muktar Jama Farah is a Somali-born British retired long-distance runner. Considered one of the greatest runners of all time, his ten global championship gold medals make him the most successful male track distance runner in the history of the sport, and he is the most successful British track athlete in modern Olympic Games history.
Galen Rupp is an American long-distance runner. He competed in the Summer Olympics in 2008 in Beijing, 2012 in London, 2016 in Rio de Janeiro and 2021 in Tokyo. He won the silver medal in the men's 10,000 meters in London and the bronze medal in the men's marathon in Rio de Janeiro. Rupp competed for the University of Oregon and trained under Alberto Salazar as a member of the Nike Oregon Project. He won the 2017 Chicago Marathon, becoming the first American to do so since Khalid Khannouchi in 2002. Rupp won the marathon at the 2020 U.S. Olympic Trials in Atlanta with a time of 2:09:20, and qualified for the 2020 Tokyo Olympic Games, where he finished eighth.
Bayron Efrén Piedra Avilés is an Ecuadorian middle distance and long-distance runner.
Lisa Uhl is an American runner. She is a four-time NCAA Division One champion, former NCAA record holder in the 10,000 meters, and the sixth fastest American woman to ever cover that distance. She competed in the 10,000 meters in the 2012 Summer Olympics. She competed for Iowa State University.
Molly Huddle is an American long-distance runner who competes in track and cross country running events. She held the American record in the 5000 meters set in 2014 in Monaco (14:42.64), which has since been lowered by Shannon Rowbury and Shelby Houlihan. Huddle held also the American record in the 10,000 meters set at the 2016 Rio Olympics with a time of 30:13.17, which has since been lowered by Alicia Monson.
Jason Hartmann is an NCAA coach and a former American long-distance runner who specializes in marathon races. He won the Twin Cities Marathon in 2009. He was the top American finisher at the 2010 Chicago Marathon and was fourth at the Boston Marathon in both 2012 and 2013. His personal record for the event is 2:11:06.
Diane Nukuri is a Burundian-American professional distance runner. She competed for Burundi as a fifteen-year-old in the 2000 Summer Olympics in Sydney in the 5,000m and in the 2012 Summer Olympics in London in the marathon. Nukuri ran for the University of Iowa in college. She was the Burundian flag bearer at the Summer Olympics in 2000 and 2012.
Juan Diego Estrada Constantino is a Mexican-American long-distance runner. He competed in the 10,000 metres at the 2012 Summer Olympics in London for Mexico. After some confusion about his eligibility after becoming a U.S. citizen, he was excluded from the U.S. Olympic trials even though it was later known that Estrada was misinformed on his eligibility possibilities. Estrada resides in Flagstaff, Arizona.
Uganda competed at the 2016 Summer Olympics in Rio de Janeiro, Brazil, from 5 to 21 August 2016. Since the nation's official debut in 1956, Ugandan athletes have appeared in every edition of the Summer Olympic Games, with the exception of the 1976 Summer Olympics in Montreal because of its partial support of the African boycott.
Namibia competed at the 2016 Summer Olympics in Rio de Janeiro, Brazil, from 5 to 21 August 2016. This was the nation's seventh consecutive appearance at the Summer Olympics.
Djibouti competed at the 2016 Summer Olympics in Rio de Janeiro, Brazil, from 5 to 21 August 2016. The nation's participation marked its eighth appearance at the Summer Olympics. Djibouti did not field any athletes at the 2004 Summer Olympics in Athens.
Libya competed at the 2016 Summer Olympics in Rio de Janeiro, Brazil, from 5 to 21 August 2016. This was the nation's eleventh appearance at the Olympics since its debut at the 1964 Summer Olympics in Tokyo; seven of them were represented by the Libyan athletes under the name Libyan Arab Jamahiriya.
Somalia competed at the 2016 Summer Olympics in Rio de Janeiro, Brazil, from 5 to 21 August 2016. The country's participation at Rio de Janeiro marked its ninth in the Summer Olympics since its debut in 1972. The delegation included two track and field athletes: sprinter Maryan Nuh Muse and long-distance runner Mohamed Daud Mohamed, who was the nation's flag bearer in the Parade of Nations. Neither athlete progressed past the first round of their respective competitions.
Maor Tiyouri is an Israeli Olympic long-distance runner, former national record holder of Israel in the 5000 metres, and a six-time Israeli national champion – in the 1500 m, the 3000 m, the 5,000 m, and the 10,000 m. She competed for Israel in the marathon in both the 2016 Olympic Games and the 2020 Olympic Games. Tiyouri will represent Israel at the 2024 Summer Olympics in Paris in the marathon on August 11, 2024.
Leonard Essau Korir is an American long-distance runner who competes over distances from 5000 meters to the marathon. He is a two-time NCAA champion, winning an indoor 5000 m title and outdoor 10,000 meters title in 2011 for the Iona Gaels. He gained United States citizenship and began competing for his adoptive nation in 2016.
Sharon Lokedi is a Kenyan middle and long-distance runner. She won the 10,000 meters at the 2018 NCAA Division I Outdoor Track and Field Championships. Lokedi has been a 10-time All-American & 12-time Big 12 champion, as of March 2019. In 2022, on her marathon debut, she won the New York City Marathon.
The men's marathon event at the 2020 Summer Olympics started at 07:00 on 8 August 2021 in Sapporo, Japan. 106 athletes from 46 nations competed. The previous Olympic champion, Kenyan Eliud Kipchoge, successfully defended his title, with Dutch and Belgian athletes Abdi Nageeye and Bashir Abdi gaining silver and bronze, respectively. Kipchoge was the third man to repeat as Olympic marathon champion, after Abebe Bikila and Waldemar Cierpinski. The Netherlands and Belgium earned their first men's marathon medals since 1980 and 1976, respectively.
Libya 
