Francina "Fanny" Elsje Blankers-Koen was a Dutch track and field athlete, best known for winning four gold medals at the 1948 Summer Olympics in London. She competed there as a 30-year-old mother of two, earning her the nickname "the Flying Housewife", and was the most successful athlete at the event.
Merlene Joyce Ottey is a Jamaican-Slovenian former track and field sprinter. She began her career representing Jamaica in 1978, and continued to do so for 24 years, before representing Slovenia from 2002 to 2012. She is ranked fourth on the all-time list over 60 metres (indoor), eighth on the all-time list over 100 metres and sixth on the all-time list over 200 metres. She is the current world indoor record holder for 200 metres with 21.87 seconds, set in 1993. She was named Jamaican Sportswoman of the Year 13 times between 1979 and 1995.
Leisel Marie Jones, OAM is an Australian former competition swimmer and Olympic gold medallist. A participant in the 2000 Summer Olympics – at just 15 years old – and 2004 Summer Olympics, she was part of gold-medal-winning Australian team in the women's 4×100-metre medley relay at the Athens Games in 2004 and a gold medallist for 100-metre breaststroke in the 2008 Summer Olympics in Beijing.
Kathryn Jane Cook is a former elite athlete, specialising in sprint and sprint relays. She is one of the most successful female sprinters in British athletics history. She is three-times an Olympic bronze medallist, including at 400 metres in Los Angeles 1984. Her other individual achievements include winning the 200m at the 1981 Universiade, finishing second in the 100m at the 1981 World Cup, and winning a bronze medal in the 200m at the 1983 World Championships. She is also three-times a winner of the British Athletics Writers' Association Female Athlete of the Year Award (1980–82).
Canada competed at the 1948 Summer Olympics in London, England. 118 competitors, 100 men and 18 women, took part in 80 events in 13 sports.
Dorothy Gladys Manley was a British sprinter. She competed in the 1948 Summer Olympics, held in London, in the 100 metres where she won the silver medal with a time of 12.2 seconds. She was the first British woman to win an Olympic sprint medal. She was also a medallist in the 1950 British Empire Games, and the 1950 European Athletics Championships.
Florence Jane Bell was a Canadian track and field athlete who competed mainly in the 100 metres.
Janeene Hope Vickers-McKinney is an American former athlete who competed mainly in the 400 metres hurdles. She won bronze medals in the 400 metres hurdles at the 1992 Olympic Games and the 1991 World Championships. She also won the 1990 US Championship.
Susan Christina "Sue" Richardson is a British retired athlete who competed mainly in the long jump. She won the 1984 Olympic bronze medal in the long jump, having won the European Indoor title a few months earlier. Her long jump best of 6.83 metres in 1984, ranks her eighth on the UK all-time list.
Patricia Diane Foster was a Canadian track and field athlete, who mainly competed in the 100 metres. Foster was born in Vancouver, British Columbia. She competed for Canada at the 1948 Summer Olympics held in London, United Kingdom, where she won the bronze medal in the women's 4 × 100 metres relay with her teammates Viola Myers, Nancy MacKay and Patricia Jones.
Kerron Stewart is a retired Jamaican sprinter who specialized in the 100 metres and 200 metres. She is the 2008 Jamaican national champion in the 100 m clocking 10.80s. She defeated World Champion Veronica Campbell-Brown in the process and now is the 2008 Summer Olympics silver medalist after she tied with Sherone Simpson in a time of 10.98s. She also earned a bronze medal in the 200 metres at the 2008 Summer Olympics with a time of 22.00s. She was born in Kingston and retired after the 2018 season.
Francesca Jean Halsall is a retired English competitive swimmer who has represented Great Britain at the Olympics, FINA world championships, and European championships, and England at the Commonwealth Games. She competed primarily in freestyle and butterfly events.
Sri Lanka participated at the 2012 Summer Olympics in London, which was held from 27 July to 12 August 2012. The country's participation at London marked its sixteenth appearance in the Summer Olympics since its debut at the 1948 Summer Olympics, having missed only the 1976 Games. The delegation consisted of seven competitors: two athletics competitors, two badminton players one shooter and two short-distance swimmers. Cooray, Samarakoon and Karunaratne qualified for the Games by meeting their respective qualifying standards; the remainder of the team entered through wildcard or quota places. Karunarante was the flag bearer for the opening and closing ceremonies.
Jamile Samuel is a Dutch athlete sprinter, who specialises in the 100 and 200 metres. She won three bronze medals at the 2010 World Junior Championships in Athletics, thus establishing herself as the third-fastest female runner under the age of 20 in the world. She won a gold medal with the Dutch women's 4 × 100 m relay team at the 2016 European Championships in Amsterdam.
Jamaica competed at the 2012 Summer Olympics in London, from 27 July to 12 August 2012. This was Jamaica's most successful performance in the Summer Olympics; it was approximately the same size from the previous games with a delegation of 50 athletes, and its athletes broke the nation's record for the number of medals, won in a single games. Jamaica's participation in London marked its sixteenth appearance as an independent nation, although it had previously competed in four other games as a British colony, and as part of the West Indies Federation. Usain Bolt became the nation's greatest highlight of these games, having won three of Jamaica's four gold medals at London, and breaking an Olympic and world record in two of the three events in which he participated. Because of his repeated successes for the most medals and records, Bolt became Jamaica's first male flag bearer at the opening ceremony since 1984.
The men's 100 metre freestyle event at the 2012 Summer Olympics took place on 31 July and 1 August at the London Aquatics Centre in London, United Kingdom. There were 56 competitors from 49 nations. The event was won by Nathan Adrian of the United States.
Carlee Beattie is an Australian Paralympic athletics competitor. A congenital arm amputee, she won the silver medal at the 2012 Summer Paralympics and a gold medal at the 2015 IPC Athletics World Championships in the Women's Long Jump. She represented Australia at the 2016 Rio Paralympics.
Kendis Marion Moore, also known by her married name Kendis Drake, is an American former competition swimmer, Pan American Games medalist, and former world record-holder.
Lori Susan "Lolo" Jones is an American hurdler and bobsledder who specializes in the 60-meter and 100-meter hurdles. She won three NCAA titles and garnered 11 All-American honors while at Louisiana State University. She won indoor national titles in 2007, 2008, and 2009 in the 60-meter hurdles, with gold medals at the World Indoor Championship in 2008 and 2010. In bobsled, she won the 2021 IBSF World Championships as the brakewoman for Kaillie Humphries.
Hannah Margaret McNair "Maggie" Mac Neil is a Canadian competitive swimmer. A 100 metre butterfly event specialist, she is the 2020 Olympic champion, 2019 World (LC) champion, two-time World (SC) champion (2021–2022), and 2022 Commonwealth champion in that event, and also holds the current Americas record (55.59s) and the world record in the short course 100 metre butterfly.
Canada 
