\n|-\n|rowspan=3|2004\n|[[2004 IAAF World Indoor Championships|World Indoor Championships]]\n|[[Budapest, Hungary]]\n|4th\n|4x400 m relay\n|[[2004 IAAF World Indoor Championships – Women's 4 × 400 metres relay|3:30.52]] (iNR)\n|-\n|rowspan=2|[[Athletics at the 2004 Summer Olympics|Olympic Games]]\n|rowspan=2|[[Athens, Greece]]\n|13th (sf)\n|400 m hurdles\n|[[Athletics at the 2004 Summer Olympics – Women's 400 metres hurdles|55.24]] \n|-\n|5th\n|4x400 m relay\n|[[Athletics at the 2004 Summer Olympics – Women's 4 × 400 metres relay|3:25.22]]\n|-\n|rowspan=3|2005\n|rowspan=2|[[2005 European Athletics Indoor Championships|European Indoor Championships]]\n|rowspan=2|[[Madrid, Spain]]\n|9th (h)\n|400 m\n|[[2005 European Athletics Indoor Championships – Women's 400 metres|53.23]] \n|-\n|bgcolor=\"silver\" | 2nd\n|4x400 m relay\n|[[2005 European Athletics Indoor Championships – Women's 4 x 400 metres relay|3:29.37]] (iNR)\n|-\n|[[2005 World Championships in Athletics|World Championships]]\n|[[Helsinki, Finland]]\n|8th\n|400 m hurdles\n|[[2005 World Championships in Athletics – Women's 400 metres hurdles|55.58]]\n|-\n|2006\n|[[2006 IAAF World Indoor Championships|World Indoor Championships]]\n|[[Moscow, Russia]]\n|4th\n|4x400 m relay\n|[[2006 IAAF World Indoor Championships – Women's 4 x 400 metres relay|3:28.95]] (iNR)\n|}"]}" id="mwFw">
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Indoor
Kelly Jade Sotherton is a British former heptathlete, long jumper and relay runner. In the heptathlon she was the bronze medallist at the 2004 Summer Olympics and, following the disqualification of two other athletes, also at the 2008 Summer Olympics, as well as being part of the bronze medal-winning team in the Women's 4x400m relay at the 2008 Summer Olympics. As such she is one of only five women to win multiple medals in Olympic heptathlon. She also won a bronze at the 2007 World Championships in Athletics. Representing England, Sotherton is a one-time Commonwealth Games champion, as the heptathlon gold medallist at the 2006 Commonwealth Games.
Ann Elizabeth PackerMBE is an English former sprinter, hurdler and long jumper. She won a gold medal in the 800 metres and a silver in the 400 metres at the 1964 Summer Olympics.
Kalayathumkuzhi Mathews Beenamol, popularly known as K. M. Beenamol, from Kombidinjal, Idukki district, Kerala is an international athlete from India.
Andrew Rock is an American sprinter who specializes in the 400 meter dash.
Ireland competed at the 2000 Summer Olympics in Sydney, Australia.
Monique Hennagan is an American athlete who mainly competes in the 400 metres. She won her first relay medal at the 1999 World Indoor Championships and her second in 2003.
Andrea Melissa Blackett is a Barbadian athlete who specializes in the 400 metres hurdles. She is also a women's track assistant coach at her alma mater, Rice University.
Małgorzata Braunek was a Polish film and stage actress.
Huang Xiaoxiao is a Chinese hurdler who specialises in the 400 metres hurdles.
Kamila Chudzik is a retired Polish heptathlete. She won a bronze medal at the Berlin World Championship in August 2009. That success was followed by a series of injuries which effectively ended her career. She officially retired in 2015.
The women's 400 metres hurdles event at the 2005 World Championships in Athletics was held at the Helsinki Olympic Stadium on August 10, 11 and 13.
Małgorzata Szumowska is a Polish film director, screenwriter and producer, born in Kraków.
Ashley Spencer is an American track and field athlete who competes in the 400 metres and the 400 metres hurdles. In the 400m hurdles, she is the 2016 Olympic bronze medalist. In the 400m, she is the 2012 World Junior Champion and the 2016 World Indoor silver medalist. She is coached by 1996 Olympic bronze medalist Tonya Buford-Bailey.
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.
Līga Velvere is a Latvian athlete competing in the 800 metres and 400 metres hurdles. She competed at the 2016 IAAF World Indoor Championships without qualifying for the final.
Natalia Kaczmarek is a Polish sprinter who specialises in the 400 metres. She is the 2024 European champion as well as the European silver medalist from 2022. She also won the bronze medal at the 2024 Summer Olympics. Kaczmarek earned several global medals as part of 4 x 400 m relays, including gold in the mixed event and silver in the women's event at the 2020 Tokyo Olympics.
Femke Bol is a Dutch track and field athlete who competes in hurdling and sprinting. She specialises in the 400 metres hurdles, where she is the 2023 World Champion, and in the 400 metres, where she is the 2024 World Indoor Champion and the short track world record holder. In the 4 × 400 metres relay, she is the 2023 World Champion and the 2024 World Indoor Champion with the Dutch women's team and the 2024 Olympic Champion with the Dutch mixed team.
The South American Indoor Championships in Athletics is a biennial indoor track and field competition for athletes from South America, organised by CONSUDATLE. The first edition was staged in 2020, making it the third continent to organise such an event. It is the indoor counterpart to the biennial South American Championships in Athletics.
Pia Skrzyszowska is a Polish athlete specialising in the sprint hurdles. She won gold medals in the 100 metres hurdles at the 2022 European Championships and 2021 European Under-23 Championships.
Kotambewaththe Gedara Dilshi Maheesha Shyamali Kumarasingha also simply known as K. G. D. M. S. Kumarasinghe or Dilshi Kumarasinghe aka Shyamali Kumarasinghe is a Sri Lankan track and field athlete and a national record holder in women's 800m. She is currently coached by Susantha Fernando.