The Central African Republic competed at the 2000 Summer Olympics in Sydney, Australia. This marked sixth appearance of the nation at a Summer Olympics. The country entered three competitors; Henriette Youanga in the women's individual archery, Mickaël Conjungo in the men's discus throw and Maria-Joëlle Conjungo in the women's 100 metres hurdles. None of those athletes advanced out of their heats.
Mary Terstegge Meagher Plant is an American former competition swimmer, Olympic champion, and world record-holder. In 1981 she bettered her own existing world records in the 100-meter butterfly (57.93) and 200-meter butterfly (2:05.96). These times would stand as the respective world records for 18 and 19 years, and are considered to be among the greatest sports performances ever.
Carlette Denise Guidry-Falkquay is an American former sprinter who won gold medals in the 4 x 100 metres relay at the 1992 Barcelona Olympics, the 1996 Atlanta Olympics and the 1995 World Championships in Gothenburg. Her individual results include winning the 100 metres title at the 1990 Goodwill Games and a bronze medal in the 60 metres at the 1995 World Indoor Championships.
Djibouti took part in the 2000 Summer Olympics, which were held in Sydney, Australia from 15 September to 1 October. The country's participation at Sydney marked its fifth appearance in the Summer Olympics since its debut at the 1984 Summer Games in Los Angeles, United States. The delegation included two track and field athletes; Omar Daher Gadid in the men's marathon and Roda Ali Wais in the women's 800 metres. Gadid failed to finish the marathon, while Wais did not progress past the first round of her event.
Grit Breuer is a German former athlete, who competed in the women's 200 metres, 400 metres, 4×100 m relay, and 4×400 m relay events.
Pauline Elaine Davis-Thompson is a former Bahamian sprinter. She competed at five Olympics, a rarity for a track and field athlete. She won her first medal at her fourth Olympics and her first gold medals at her fifth Olympics at age 34 in the 4 × 100 m Relay and, after Marion Jones' belated disqualification nine years later, in the 200m.
Egypt, which is represented by the Egyptian Olympic Committee (EOC), competed at the 1996 Summer Olympics in Atlanta, United States from July 19 to August 4, 1996. Twenty-nine Egyptian athletes, twenty-seven men and two women, competed in boxing, handball, judo, rowing, shooting, swimming, weightlifting, and wrestling, but the nation did not win any medals.
Jane Louise Kerr Thompson, née Jane Louise Kerr, is a former competition swimmer from Canada. Kerr was a butterfly and freestyle specialist who was an Olympic bronze medallist.
Marcel Gery is a former butterfly swimmer, who was born in Czechoslovakia and competed for the Czechoslovak national team in international competitions.
Sheila Ann Echols is a retired track and field athlete from the United States who competed in the 100 metres and the long jump. She won a gold medal at the 1988 Olympic Games in the 4 x 100 m relay. She also won the 1989 IAAF World Cup 100 m title.
The Gambia has sent athletes to every Summer Olympic Games held since 1984, although the country has never won an Olympic medal. The Gambia is yet to compete at the Winter Olympic Games.
Djibouti has participated in nine Summer Olympic Games as of the completion of the 2020 Summer Olympics in Tokyo. They have never competed in the Winter Olympic Games. Djibouti debuted at the 1984 Summer Olympics in Los Angeles, United States of America with three athletes, but did not take home a medal. The highest number of Djiboutian athletes participating in a summer Games is eight in the 1992 games in Barcelona, Spain. Only one Djiboutian athlete has ever won a medal at the Olympics, marathon runner Hussein Ahmed Salah, who won a bronze medal in the 1988 marathon.
Gambia took part in the 2008 Summer Olympics, held in Beijing, China from 8 to 24 August 2008. It was Gambia's seventh appearance in the summer Olympics since its debut in 1984. The Gambia team included three athletes; runners Suwaibou Sanneh and Fatou Tiyana as well as boxer Badou Jack. Jack, a middleweight at his first Olympics, was selected as flag bearer for both the opening and closing ceremonies. None of the Gambia athletes progressed further than the qualifying heats.
Chad competed at the 2012 Summer Olympics in London, which was held from 27 July to 12 August 2012. This marked the nation's eleventh appearance at the Summer Olympics since its debut in the 1964 Summer Olympics. The Chadian delegation included track and field athlete Hinikissia Ndikert and judoka Carine Ngarlemdana. Ngarlemdana was the flag bearer for the opening ceremony and Ndikert was the flag bearer for the closing ceremony. Neither of Chad's athletes progressed beyond the first round of their events. Chad was one of only two countries to have a female-only team at the 2012 games.
The Marshall Islands marked its second consecutive Olympiad, at the 2012 Summer Olympics in London, from July 27 to August 12, 2012. The Olympian delegation included two men and two women, one male and one female athlete in athletics and one male and one female athlete in swimming. Middle-distance runner Haley Nemra was honored as the national flag bearer at the opening ceremony. The Marshall Islands continued their streak of bringing home no medals.
Karen Milenka Torrez Guzmán is a Bolivian swimmer from Cochabamba. She competes in the Women's 100m Freestyle. She was flag bearer for the nation at the 2012 Summer Olympics.
Inés Remersaro Coronel is an Olympic backstroke swimmer from Uruguay.
The 100 metres at the Summer Olympics has been contested since the first edition of the multi-sport event. The men's 100 metres has been present on the Olympic athletics programme since 1896. The 100 metres is considered one of the blue ribbon events of the Olympics and is among the highest profile competitions at the games. It is the most prestigious 100 metres race at an elite level and is the shortest sprinting competition at the Olympics – a position it has held at every edition except for a brief period between 1900 and 1904, when a men's 60 metres was contested.
Gwendoline "Gwen" Griffiths South African runner who specialized in the 1500 and 5000 metres, later the marathon.
Laure Isabelle Kuetey is a Beninese sprinter who specializes in the Women's 100 meters and the Women's 200 metres events. She competed at the 200 metres event in the 1996 Summer Olympics, and the 100 metres event in the 1992 and 2000 Summer Olympics respectively. In addition, she was also the flag bearer for Benin in the 1996 and 2000 Summer Olympics opening ceremony.
South Africa 
