Kim Collins is a former Kittitian track and field sprinter. In 2003, he became the World Champion in the 100 metres. He represented his country at the Summer Olympics on five occasions, from 1996 to 2016, and was the country's first athlete to reach an Olympic final. He competed at ten editions of the World Championships in Athletics, from 1995 to 2015, winning five medals. He was a twice runner-up in the 60 metres at the IAAF World Indoor Championships. At regional level, he was a gold medallist at the Commonwealth Games and a silver medallist at the Pan American Games. As of 2023, he is the only Individual World Championships Gold medallist from Saint Kitts and Nevis.
Yuriy Mikhailovich Borzakovskiy is a Russian middle-distance runner specializing in the 800 metres.
Amine Laâlou is a Moroccan track and field athlete, who specializes in middle-distance running. He has represented his country at the Summer Olympics on two occasions; in 2004 and 2008. He began his career as an 800 metres specialist and made his global debut at the 2003 World Championships in Athletics. He won medals at smaller international competitions, including the 2004 Pan Arab Games and 2005 Mediterranean Games. He reached his first global final at the 2007 World Championships, taking sixth, and was a semi-finalist at the 2008 Summer Olympics.
Adama Njie is a retired Gambian middle-distance runner who specialised in the 800 metres. She represented her country in three Olympic Games and one Commonwealth Games, and was the flag-bearer for the Gambia at the 2000 Summer Olympics.
Thomas Benjamin Lancashire is an English middle-distance runner. Lancashire represented Great Britain at the 2008 Summer Olympics in the 1500 m.
Sajjad Moradi is an Iranian middle distance runner who specializes in the 800 m and 1500 m. He holds multiple national records for Iran from various track disciplines. Moradi is a gold-medalist in the Asian Games, Asian Athletics Championships, Asian Indoor Games, and Universiade. He also competed at three Summer Olympic Games in 2004, 2008, and 2012.
Barakat Mubarak Al-Harthi is an Omani sprinter who specializes in the 100 metres.
Seltana Aït Hammou is a Moroccan middle-distance runner who specialises in the 800 metres. She represented her country at the 2004 Summer Olympics and has also competed at the World Championships in Athletics and the IAAF World Indoor Championships. She has also been the gold medallist at number of major events including the 2001 Mediterranean Games, the 2003 Military World Games, the 2007 Pan Arab Games and the 2009 Jeux de la Francophonie.
Andrés Manuel Díaz is a former Spanish middle-distance runner. He represented Spain at the Olympics in 1996 and 2000 and was the bronze medallist over 1500 metres at the 1999 IAAF World Indoor Championships.
The men's 100 metres competition at the 2012 Summer Olympics in London, United Kingdom was held at the Olympic Stadium on 4–5 August 2012. Seventy-four athletes from 61 nations competed. Each nation was limited to 3 athletes per rules in force since the 1930 Olympic Congress. The competition comprised four rounds: a preliminary round for entrants without the minimum qualifying standard, a heats round, followed by three semi-finals of eight athletes each, which then reduced to eight athletes for the final.
The men's 800 metres competition at the 2012 Summer Olympics in London, United Kingdom, was held at the Olympic Stadium on 6–9 August. Fifty-five athletes from 43 nations competed. The event was won in a world record time of 1:40:91 by David Rudisha of Kenya, the second consecutive and fourth overall title for Kenya in the event. Rudisha would later become the fourth man to successfully defend his Olympic 800 metres title, and the 11th to win two medals of any kind in the event. Nijel Amos' silver medal was the first Olympic medal ever for Botswana. Timothy Kitum of Kenya won the bronze medal.
Egypt competed at the 2012 Summer Olympics in London, from 27 July to 12 August 2012, sending one of its largest delegations ever. A total of 110 Egyptian athletes participated in 83 events across 20 sports, with more women taking part than ever before. The nation's flagbearer in the opening ceremonies was Hesham Mesbah, a judoka who was Egypt's only medalist at the 2008 Summer Olympics. Egypt won two medals during the course of the Games: Alaaeldin Abouelkassem earned silver in the men's foil, becoming the first competitor from an African nation to win a fencing medal, while Karam Gaber captured silver in the men's 84 kg Greco-Roman wrestling event. Two Egyptian weightlifters were awarded medals retroactively, after higher-ranked competitors were disqualified for doping: Abeer Abdelrahman took silver in the women's 75 kg event, while Tarek Yehia, received bronze in the men's 85 kg event. Among other achievements, Mostafa Mansour was the nation's first competitor in sprint canoeing while fencer Shaimaa El-Gammal became the first Egyptian female to appear in four editions of the Olympics.
Mohammad Mutlak Khalif Al-Azemi is a Kuwaiti middle distance runner who specialises in the 800 metres. His 800 m personal bests of 1:44.13 minutes outdoors and 1:48.93 minutes indoors are the Kuwaiti records for the event. He represented his nation at the Olympic Games in 2004, 2008 and 2012, and has also made four appearances at the World Championships in Athletics.
Eduar Antonio Villanueva is a Venezuelan middle-distance runner. He represented his country at the 2008 Summer Olympics and 2012 Summer Olympics and has participated in the World Championships in Athletics on three consecutive occasions. In 2011 he had the best ever performance by a Venezuelan runner at the World Championships, coming eighth in the 1500 metres. He set a Venezuelan record of 3:36.96 minutes in the semi-final.
The Asian island nation of the Maldives competed at the 2012 Summer Olympics in London from 27 July to 12 August 2012. This was the nation's seventh consecutive appearance at the Olympics, the delegation consisted of two athletes each in track and field and swimming. For the first time since their debut at the Summer Olympics, the Maldives entered one badminton player into the Olympics. Mohamed Ajfan Rasheed, the inaugural Maldivian badminton player to compete at the Olympics, was the nation's flag bearer at the opening ceremony with Azneem Ahmed carrying the Maldivian flag in the closing ceremony. All the athletes qualified for the games through wild cards from International Association of Athletic Federations FINA and Badminton World Federation. The Maldives however, has yet to win its first ever Olympic medal.
Genzeb Shumi Regasa is an Ethiopian-born middle distance runner who competes internationally for Bahrain. She won the 1500 metres gold medal at the Asian Athletics Championships in 2011 and the Asian Indoor Athletics Championships in 2012. Her personal bests are 2:01.18 minutes for the 800 metres and 4:05.16 minutes for the 1500 m.
Taoufik Makhloufi is an Algerian athlete who specialises in middle-distance running. He became the 1500 metres Olympic champion at the 2012 Summer Olympics in London, England. In 2016, Makhloufi took the silver medal in the 800m and 1500 m at the Summer Olympics in Rio, Brazil.
Jan Sekpona is a retired Togolese middle-distance runner, who specialized in the 800 metres. Sekpona qualified for the Togolese squad in the men's 800 metres at the 2004 Summer Olympics in Athens by attaining an entry time and a personal best of 1:52.40. Running against seven other athletes in heat three, Sekpona crossed the finish line by nearly ten minutes behind leader Wilson Kipketer of Denmark with an eighth-place time in 1:54.25. Sekpona failed to advance into the semifinals as he placed farther from two automatic slots for the next round and ranked no. 70 overall in the prelims. Sekpona was also appointed as the Togolese flag bearer by the National Olympic Committee in the opening ceremony.
Amel Tuka is a Bosnian middle-distance runner who competes in the 800 metres. His achievements include a silver medal at the 2019 World Championships as well as a bronze medal at the 2015 World Championships. Tuka holds national records in the 400 m and 800 m disciplines.
Djibouti competed at the 2020 Summer Olympics in Tokyo. Originally scheduled to take place from 24 July to 9 August 2020, the Games were postponed to 23 July to 8 August 2021, because of the COVID-19 pandemic. This was the nation's ninth appearance at the Summer Olympics; Djibouti did not field any athletes at the 2004 Summer Olympics in Athens. The delegation consisted of four athletes, three men and one women, competing in five events across three sports. Two athletes participated in the judo and swimming tournaments: Aden-Alexandre Houssein and Houssein Gaber Ibrahim. Athlete Ayanleh Souleiman, a returning competitor from the 2016 Rio Olympics competed in the men's 800 metres and 1500 metres events. Souhra Ali Mohamed, who had previously participated in the 2012 Summer Olympics competed in the women's 1500 metres event. Houssein lead the Djiboutian squad as the flagbearer in the opening ceremony with Souhra being the flagbearer for the closing ceremony.
