Kerron Stephon Clement is a Trinidadian-born American track and field athlete who competes in the 400-meter hurdles and 400-meter sprint. He held the indoor world record in the 400-meter sprint, having broken Michael Johnson's mark in 2005.
Melaine Walker O.D is a Jamaican 400 metres hurdler. She was born in Kingston. Walker is the former Olympic 400 m hurdles champion. She held the Olympic record of 52.64, set at the 2008 Beijing Olympics, and her time of 52.42 seconds at the 2009 World Championships in Berlin was the second fastest time in history at the time.
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.
Michael Bingham is an American-born British 400 metres track and field athlete. The silver medalist in the individual 400 metres at the 2010 European Championships, his most notable successes came as a long-time member of the Great Britain and England 4 x 400 metre relay squads. A European indoor, European outdoor and Commonwealth Games champion in the long relay, Bingham won medals at every major indoor and outdoor championships available to him, winning Olympic bronze in 2008, World outdoor silver and World indoor silver (twice), in addition to the gold medals at European and Commonwealth Games level.
The 2015 IAAF World Championships, the fifteenth edition of the IAAF World Championships, were held from 22 to 30 August at the National Stadium in Beijing, China. Forty-three nations won medals, 144 of which were awarded. Kenya topped the medal table for the first time, with 7 gold, 6 silver and 3 bronze medals. The United States won 18 medals, six gold, six silver and six bronze, which was the highest tally. Host nation China, finished 11th on the medals table, while Russia finished ninth.
Nicholas Kiplagat Bett was a Kenyan track and field athlete who competed in the 400 metres hurdles. His personal best for the event is 47.79 seconds. He was a world champion in the event, having won in 2015, and a two-time bronze medallist at the African Championships in Athletics. He died in a road accident in Kenya at the age of 28.
The men's 400 metres hurdles at the 2015 World Championships in Athletics was held at the Beijing National Stadium on 22, 23 and 25 August.
The women's 400 metres hurdles at the 2015 World Championships in Athletics was held at the Beijing National Stadium on 23, 24 and 26 August.
The men's decathlon at the 2015 World Championships in Athletics was held at the Beijing National Stadium on 28 and 29 August.
Hederson Alves Estefani is a Brazilian athlete competing primarily in the 400 metres and 400 m hurdles. He represented his country at the 2015 World Championships in Beijing without advancing from the first round.
Ayomide Temilade Oluwatoyosi Folorunso is an Nigerian-Italian athlete specialising in the 400 metres hurdles. She competed in the 4 × 400 metres relay at the 2015 World Championships in Beijing.
Jessica Gulli-Nance is an Australian athlete specialising in the 400 metres and 400 metres hurdles. She competed in the 4 × 400 metres relay event at the 2015 World Championships in Beijing without qualifying for the final. Her personal bests are 53.22 seconds in the 400 metres and 57.30 seconds in the 400 metres hurdles.
Francisca Koki Manunga is a female hurdler from Kenya. She competed in the Women's 400 metres hurdles event at the 2015 World Championships in Athletics in Beijing, China. She was disqualified after failing a doping test.
Niall Flannery is an English hurdler. He competed in the 400 metres hurdles event at the 2015 World Championships in Beijing reaching the semifinals. In addition he finished fourth at the 2014 Commonwealth Games.
Miles Ukaoma is an American-born Nigerian hurdler. In 2016, Miles Ukaoma qualified for the 2016 Rio Olympics Men's 400 metres hurdles|400 metres hurdles event, He competed in the 400 metres hurdles event at the 2015 World Championships in Beijing narrowly missing the semifinals. His personal best in the 400 metres hurdles is 48.84 seconds set in Warri in 2015.
Yuta Konishi is a Japanese hurdler. He competed in the 400 metres hurdles event at the 2015 World Championships in Beijing without qualifying for the semifinals. Earlier that year he won the gold medal at the 2015 Asian Championships. His personal best in the 400 metres hurdles is 49.41 seconds set in Osaka in 2011.
Jaak-Heinrich Jagor is an Estonian hurdler. He competed in the 400 metres hurdles event at the 2015 World Championships in Beijing without qualifying for the final. His personal best in the 400 metres hurdles is 49.37 seconds set in Tallinn in 2015.
Johannes Gerhardus Maritz is a Namibian hurdler. He competed in the 400 metres hurdles event at the 2015 World Championships in Beijing without qualifying for the semifinals. His personal best in the 400 metres hurdles is 50.14 set in Potchefstroom in 2015.
Mohamed Sghaier is a Tunisian hurdler. He competed in the 400 metres hurdles event at the 2015 World Championships in Beijing getting disqualified in the first round. His personal best in the 400 metres hurdles is 49.22 seconds set in La Chaux-de-Fonds in 2015. This is the current national record.
Aron Kipchumba Koech is a Kenyan hurdler. At the 2015 Athletics Kenya World Championship Trials he finished third in the 400 metres hurdles event. Later that year he represented Kenya in the 400 metres hurdles event at the 2015 World Championships in Athletics in Beijing, China. With a personal best, in a time of 49.38, he finished 22nd in the heats. He was qualified for the semi-finals where he finished 19th in a time of 49.54. Again in 2016 he finished third at the 2016 Athletics Kenya Olympic Trials behind his brother and Boniface Mucheru Tumuti. At the Olympics, Koech made the final while his brother was disqualified in the heats. Tumuti went on to capture the silver medal in National Record time, while Koech finished seventh. His 48.49 in the semi-final round is his personal record.
New Zealand 
