Joanna Dove Hayes is an American hurdler, who won the gold medal in the 100 metres hurdles at the 2004 Summer Olympics.
Tamsyn Carolyn Lewis is an Australian media personality and former track and field athlete who won a total of eighteen Australian Championships across the 400 metres, 800 metres and 400m hurdles. She first represented Australia in 1994, and won the 800 metres in the 2008 World Indoor Championships.
Michelle Jan Ford is an Australian former long-distance freestyle and butterfly swimmer of the 1970s and 1980s, who won a gold medal in the 800-metre freestyle, bronze in the 200-metre butterfly, and 4th in the 400-metres freestyle at the 1980 Summer Olympics in Moscow. She was the only non-Soviet bloc female swimmer to win an individual gold medal at the 1980 games. She also set two world records in her career, and was the first Australian woman to win individual Olympic medals in two distinct specialised strokes.
Marita Payne-Wiggins is a Canadian former track and field athlete who competed in two consecutive Summer Olympics. She is the co-Canadian record holder in the 400 metres, along with Jillian Richardson, and previously held the Canadian record in the 200 metres.
Diane Lynn Dixon is an American athlete who competed mainly in the 400 metres. She was born in Brooklyn, New York. She has an Olympic gold medal for running with the American 4x400 meters relay team at the 1984 Olympics, running in the preliminary rounds.
Denean Elizabeth Howard-Hill is an American athlete who competed mainly in the 400 metres.
Sherri Frances Howard is a former American athlete who competed mainly in the 400 metres. She is the older sister of 1988 relay teammate Denean Howard.
Evelyn Tokue Kawamoto, also known by her married name as Evelyn Konno, was an American competition swimmer, and American record holder, who won bronze medals in the 400-meter individual freestyle and the 4x100-meter freestyle relay events at the 1952 Helsinki Olympics. She set American records in both the 300-meter IM and 200-meter breaststroke in 1949. After graduating the University of Hawaii in her 30's with a degree in Education, she worked as an elementary school teacher.
Seychelles competed at the 2010 Summer Youth Olympics, the inaugural Youth Olympic Games, held in Singapore from August 14 to August 26, 2010. The nation was represented by the Seychelles Olympic and Commonwealth Games Association, which sent a total of four athletes to compete in four sports. The flagbearer at the opening ceremony for the nation was badminton player Kervin Ghislain. Seychelles' Olympic team was one of the 106 that did not win a single medal at the Games.
Lauren Boden is an Australian athletics competitor. Her events are the 400 metre hurdles, 400 metres and long jump. She was the youngest woman to win the 400 metres hurdle event at the Australian national championships. She has competed in the long jump event and the 400 metres hurdle event at the World University Games. She has competed at the 2006 and 2010 Commonwealth Games and the 2012 and 2016 Summer Olympics in the 400 metre hurdles event.
Emily Diamond is a British track and field athlete, who competes in the 200 metres and 400 metres. Diamond came to prominence in her breakout season of 2016 when, following her first win at the British Championships over the 400 metres distance, she collected a gold medal in the 4 x 400 metres relay at the 2016 European Athletics Championships as part of the Great Britain team, followed by a bronze in the same discipline at the 2016 Summer Olympics.
Afia Neliah Charles is a sprinter from Antigua and Barbuda who specializes in the 400 metre dash.
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.
Dalilah Muhammad is an American track and field athlete who specializes in the 400 meters hurdles. She is the 2016 Rio Olympics champion and 2020 Tokyo Olympics silver medalist, becoming at the latter the then-second-fastest woman of all time in the event with her personal best of 51.58 seconds. Muhammad was second at both the 2013 and 2017 World Championships to take her first gold in 2019, setting the former world record of 52.16 s. She was the second female 400 m hurdler in history, after Sally Gunnell, to have won the Olympic, World titles and broken the world record. At both the 2019 World Championships and Tokyo Games, she also took gold as part of women's 4 × 400 metres relay team.
Janieve Russell is a Jamaican track and field athlete who competes mainly in the 400 metres hurdles and the 400 metres sprint. She won an Olympic bronze medal in the 4 × 400 m relay in Tokyo 2021, where she also finished fourth in the 400m hurdles final in a personal best of 53.08 secs. She is a four-time Commonwealth Games gold medallist, winning the 400m hurdles title in 2018 and 2022, and the 4 × 400 m relay in 2014 and 2018. She has also won two relay silvers at the World Championships and a relay gold at the World Indoor Championships.
Regine Tugade-Watson is a Guamanian sprinter. She competed in the women's 100 metres event at the 2015 World Championships in Athletics in Beijing, China, as well as the girl's 200 m event at the 2015 World Youth Championships in Cali, Colombia. She competed in the women's 100 m preliminary round of the 2016 Summer Olympics. Tugade finished third place in her heat but did not progress further. She also competed in her second World Championships in 2017, competing in the 200 m. She holds seven Guamanian national records in athletics. In July 2021 she was a flag bearer in the Parade of Nations at the Tokyo Olympics opening ceremony.
Sydney Michelle McLaughlin-Levrone is an American hurdler and sprinter who competes in the 400 meters hurdles and is the world record holder in that event. She has won gold in the 2020 and 2024 Summer Olympics, as well as the 2022 World Athletics Championships. She set a world record time of 50.37 seconds at the 2024 Summer Olympics on August 8, 2024, breaking her own old world record of 50.65 seconds. She is the first track athlete to break four world records in the same event; setting four world records during 13 months, she was the first woman to break the 52-second and 51-second barriers in the 400 m hurdles. She won the silver medal at the 2019 World Championships. At all four competitions, she also took gold as part of a women's 4 × 400 m relay team.
Nicole Justine Oliva is a Filipino swimmer. She competed in the women's 200 metre freestyle event at the 2017 World Aquatics Championships. and the at women's 400 metre freestyle the 2019 edition of the same tournament
Kendall Ellis is an American sprinter. Ellis won gold in the 4x400 m relay and bronze in the Mixed 4x400 metres at the Tokyo Olympics. She competed in the 400 meters at the 2017 and 2019 World Championships, winning gold medals as a part of prelim 4×400 m relays. As a junior, Ellis took gold in the 4×400 m relay and bronze in the 400 meters at the 2015 Pan American Junior Championships.
Jaide Alexandra Stepter Baynes is an American track and field athlete who specializes in the 400 metres.
