Andrzej Stanisław Badeński was a Polish sprinter who specialized in the 400 metres. He won a bronze medal in that event at the 1964 Summer Olympics, and won the gold medal in that event at the European Indoor Championships in 1968 and in 1971.
Togo competed at the 2004 Summer Olympics in Athens, Greece, from 13 to 29 August 2004. The country's participation at Athens marked its seventh appearance in the Summer Olympics since its debut at the 1972 Summer Games in Munich, West Germany. The delegation included two track and field athletes and a single canoeist; Jan Sekpona in the men's 800 metres, Sandrine Thiébaud-Kangni in the women's 400 metres, and Benjamin Boukpeti in the men's K-1. Both Sekpona and Thiébaud-Kangni were eliminated in the first round of their competitions, while Boukpeti progressed to the semi-finals.
Alvin Leonardo Harrison is an American former track and field athlete who competed in sprinting events. He won a gold medal in the 4 x 400 metres relay at both the 1996 and 2000 Summer Olympics and a silver medal in the 400 metres at the 2000 Summer Olympics.
Robert George Windle is an Australian freestyle swimmer of the 1960s, who won four Olympic medals, including an individual gold medal. Windle won the 1500 m freestyle and took bronze in the 4 × 100 m freestyle relay at the 1964 Summer Olympics in Tokyo, and silver and bronze in the 4 × 200 m and 4 × 100 m freestyle relays respectively at the 1968 Summer Olympics. Known for his versatility, he is the only male swimmer to represent Australia at the Olympics in all freestyle distances from 100 m to 1500 m. During his career, Windle set six world records and won six Commonwealth Games gold medals. He won 19 Australian championships in all distances from 220 yd to 1650 yd.
Rita Wilden, née Jahn is a German athlete, who competed mainly in the 400 metres.
The Maldives competed at the 1996 Summer Olympics in Atlanta, United States, from 19 July to 4 August 1996. The delegation's participation in the Atlanta Olympics marked the Maldives' third appearance at the Summer Olympics since their debut at the 1988 Summer Olympics in Seoul, South Korea. Six athletes competed across two sports; Mohamed Amir, Naseer Ismail, Hussain Riyaz, Ahmed Shageef and Yaznee Nasheeda in track and field, and Moosa Nazim in swimming. None of the track or swimming athletes advanced past the first round in their events, and no Maldivian has won a medal in any events. Ahmed Shageef bore the Maldives' flag during the parade of nations of the opening ceremony.
Saint Kitts and Nevis competed in the Olympic Games for the first time at the 1996 Summer Olympics in Atlanta, United States. The country sent ten athletes to compete, all in the sport of athletics. None of the athletes received a medal.
Saint Kitts and Nevis first participated at the Olympic Games in 1996, and have competed in every Summer Olympic Games since then. The country has never won an Olympic medal and has not competed at the Winter Olympic Games.
Victoriano Alberto Zorrilla was an Argentine swimmer who competed in the 1924 Summer Olympics and in the 1928 Summer Olympics where he became the first South American to win an Olympic swimming gold medal.
Daniel Ploug Jorgensen is an American former competition swimmer who represented the United States at two consecutive Olympic Games.
Svetla Stefanova Zlateva is a retired Bulgarian sprinter and middle-distance runner who specialized in the 400 and 800 metres. She is a former world record holder in the latter event. In 1973, she was the winner of the first Balkan Athlete of the Year award.
Lilyana Tomova-Todorova, born 9 August 1946) is a retired Bulgarian sprinter and middle-distance runner who specialized in the 400, 800 and 1500 metres.
Bevan Duncan Smith is a former New Zealand sprinter. He won the bronze medal in the men's 200 metres at the 1974 British Commonwealth Games.
The men's 400 metres was an event at the 1972 Summer Olympics in Munich. The competition was held on 3, 4 and 7 September. Sixty-four athletes from 49 nations competed. The maximum number of athletes per nation had been set at 3 since the 1930 Olympic Congress. The event was won by Vince Matthews of the United States, the nation's fifth consecutive and 12th overall victory in the event. The Americans' hopes to repeat their podium sweep of four years earlier were dashed by injury in the final. Bronze medalist Julius Sang became the first black African to win a sprint Olympic medal, earning Kenya's first medal in the event.
Brian Brinkley is an English former competitive swimmer who represented Great Britain in the Olympic Games, FINA world championships and European championships, and England in the Commonwealth Games, during the 1970s. During his elite swimming career, he won thirteen medals in major international swimming championships.
Esther Stroy is a former American track and field athlete, who competed in the sprinting events. She is best known for competing at the 1968 Olympics in the 400-meter dash as a 15-year-old, the youngest competitor at those games.
Pernille Blume is a former Danish swimmer specializing in sprint freestyle events. She competed at the 2012 Summer Olympics. At the 2016 Summer Olympics she was the gold medalist in the women's 50 metre freestyle and won a bronze medal in the women's 4 × 100 metre medley relay where she swam the freestyle leg of the relay in both the prelims and the final. She also competed at the 2020 Summer Olympics, winning a bronze medal in the 50 metre freestyle.
The 4 × 400 metres relay at the Summer Olympics is the longest track relay event held at the multi-sport event. The men's relay has been present on the Olympic athletics programme since 1912 and the women's event has been continuously held since the 1972 Olympics. The inaugural and so far the only mixed 4 × 400 metres relay was held at the 2020 Olympics. It is the most prestigious 4×400 m relay race at elite level. At the 1908 Summer Olympics, a precursor to this event was held – the 1600 m medley relay. This event, with two legs of 200 m, one of 400 m, and a final leg of 800 m, was the first track relay in Olympic history.
Silver Ayoo is a Ugandan former athlete who competed as a sprinter in 400 metre events. He represented Uganda at the 1972 Summer Olympics and 1980 Summer Olympics.
William Koskei was a Kenyan track and field athlete who specialised in the 400 metres hurdles and 4 × 400 metres relay.
Tanzania 
