Christine Ijeoma Ohuruogu, MBE is a British former track and field athlete who specialised in the 400 metres, the event for which she is an Olympic, World and Commonwealth champion. The Olympic champion in 2008, and silver medalist in 2012, she is a double World Champion, having won the 400 m at the 2007 and 2013 World Championships. She has also won six World championship medals in the women's 4 × 400 m relay as part of the Great Britain and Northern Ireland team and bronze Olympic medals with the women's 4 × 400 m relay at the 2008 Beijing Games and the 2016 Rio Games, her final Olympics. Ohuruogu shares with Merlene Ottey and Usain Bolt the record for medalling in most successive global championships – 9 – between the 2005 World Championships in Athletics and the 2016 Summer Olympics.
Oludamola Bolanle ("Damola") Osayomi is a Nigerian sprinter who specializes in the 100 metres and 200 metres. She is a four-time gold medallist at the African Championships in Athletics and won an Olympic silver medal with Nigeria in the 4×100 metres relay at the 2008 Beijing Olympics. She also won the 100 and 200 m sprints at the 2007 All-Africa Games.
Linda Staines is a female former British track and field athlete who competed mainly in the 400 metres. She represented Great Britain at the 1988 Olympic Games in Seoul in both the 400 metres and 4 x 400 metres relay, and won a bronze medal in the 4 × 400 m relay at the 1993 World Championships. She also won four medals at the Commonwealth Games, including an individual silver medal in the 400 metres in 1990 and two relay gold medals.
Zuzana Hejnová is a retired Czech athlete who specialised in the 400 metres hurdles. She won the silver medal in the event at the 2012 London Olympics. Hejnová is a two-time World Champion, having claimed titles at the 2013 and 2015 World Championships in Athletics. She won bronze at the 2012 European Championships and silver for the 400 metres at the 2017 European Indoor Championships.
Eilidh Doyle is a retired British track and field athlete. Originally running as Eilidh Child, she specialised in the 400 metres hurdles outdoors, and the 400 metres flat indoors, as well as the 4 x 400 metres relay on both surfaces. She represented Great Britain at the 2012 Olympic Games in London, and won an Olympic bronze medal in the 4 x 400 metres relay at the 2016 Games in Rio de Janeiro. Individually, she is the 2014 European Champion and a three-time Commonwealth silver medalist in the 400 metres hurdles.
Muizat Ajoke Odumosu Alademerin is a Nigerian track and field athlete who specialises in the 400 metres and the 400 metres hurdles. She represented Nigeria at the 2008 and 2012 Summer Olympics and competed at the World Championships in Athletics in 2007, 2009, 2011 and 2013. She was the bronze medallist at the 2007 All-Africa Games and went on to become the continental champion with a win at the 2008 and 2012 African Championships.
Shaunae Miller-Uibo is a Bahamian track and field sprinter who competes in the 200 and 400 metres. She is a two-time Olympic champion after winning the women's 400 metres at the 2016 Rio Olympics and again at the 2020 Tokyo Olympics.
Regina George Grause is an American-born Nigerian sprinter who specializes in the 400 metres. She represented Nigeria at the 2012 Summer Olympics and was the silver medallist at the African Championships in 2012.
Carline Muir is a Canadian sprinter, who specialized in the 400 metres. She won the bronze medal for the 400 metres, and ultimately, led her national team to claim the sprint relay title at the 2009 Summer Universiade in Belgrade, Serbia. She is also a three-time junior national champion, a two-time silver medalist at the Canadian Track and Field Championships.
Maria Benedicta Chigbolu is an Italian sprinter, who specializes in the 400 metres. She competed at the 2020 Summer Olympics, in 4 × 400 m relay.
Ese Brume MON is a Nigerian athlete who specializes in the long jump. She is the current commonwealth champion and a three-time African senior champion in the long Jump and holds a personal best of 7.17 m She currently holds the commonwealth games record, African junior record and African record in the event. She's a two-time medalist at the world athletics championship, an Olympic bronze medalist and also a five-time African junior champion in athletics.
Shericka Jackson is a Jamaican sprinter competing in the 100 m, 200 m, and 400 metres. In the 100 m, she’s the fifth fastest woman of all time, while in the 200 m, she’s the fastest woman alive and second fastest woman in history.
Patience Okon George is a Nigerian sprinter. She competed in the 400 metres event at the 2015 World Championships in Athletics in Beijing, China and also at the 2016 Rio Olympic Games. George is a two-time African Championships bronze medallist in the individual 400 metres event. She is also a three-time Nigerian national champion in the 400 metres.
Oluwatobiloba Ayomide "Tobi" Amusan is a Nigerian track and field athlete who specialises in the 100 metres hurdles and also competes as a sprinter. Amusan is the current world record holder in the 100 metres hurdles with a time of 12.12 seconds which she set at the 2022 women's 100 metres hurdles semi final in Eugene Oregon. She is the current Commonwealth and African champion in the 100 m hurdles, as well as the meet record holder in those two competitions. Amusan became the first ever Nigerian world champion and world record holder in an athletics event when she won the 2022 World Championships 100 m hurdles gold medal, setting the current world record of 12.12 seconds (+0.9m/s) in the semi-final, followed up by a 12.06 seconds (+2.5m/s) in the final. She won back-to-back Commonwealth and African titles in 2018 and 2022 in the 100 m hurdles and is also a two-time African Games champion in the event. She is also the current Diamond league champion in the 100 metres hurdles having won the final in 12.33 seconds (+1.8m/s) achieving a winning streak in 2021, 2022 and 2023.
Salwa Eid Naser is a Nigerian-born Bahraini sprinter who specialises in the 400 metres. She was the 2019 World champion with the third fastest time in history of 48.14 seconds, becoming the youngest-ever champion in the event and also the first woman representing an Asian nation to win that event at a World Championships. The mark places her only behind contested results of Marita Koch and Jarmila Kratochvílová. Over the distance, at only 19, Naser was the 2017 World silver medallist. She has also won, as a member of Bahraini mixed-gender 4x400 m relay team, the 2019 World Championships bronze medal.
The women's 4 × 400 metres relay at the 2017 World Championships in Athletics was held at the London Olympic Stadium on 12–13 August.
Praise Oghenefejiro Idamadudu is a Nigeria female track and field sprinter who competes in the 200 metres and the 400 metres. She was a silver medallist in the 4 × 400 metres relay at the 2018 Commonwealth Games.
Favour Chukwuka Ofili is a Nigerian track and field sprinter. She is the 2019 African Games silver medallist in the 400 metres. Ofili won silver for the 200 metres at the 2022 Commonwealth Games.
Aniekeme Alphonsus is a Nigerian athlete who competes in sprint and middle distance races. She won a gold and silver medal in the 4 x 100 meter relay and 100m race, at the 2015 African Junior Athletics Championships.
Imaobong Nse Uko is a Nigerian athlete. She competed in the mixed 4 × 400 metres relay event at the 2020 Summer Olympics. The 17-year-old won the 400 metres at the 2021 World Under 20 Championships.
Nigeria 
