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.
Janeth Jepkosgei Busienei is a Kenyan middle distance runner and former world champion.
Louis Jacobus van Zyl, better known as L. J. van Zyl, is a South African athlete competing in the 400 metre hurdles. He is the South African record holder in the event with a personal best of 47.66 seconds, which he achieved twice, three months apart. His time ranks him in the all-time top 25. He is a three-time African Champion in the event and competed for his country at the 2008, 2012 and 2016 Summer Olympics.
Martyn Joseph Rooney is an English sprinter who specialises in the 400 metres event. He reached the 400 m final at the 2008 Summer Olympics and won bronze in the 4×400 metres relay. A mainstay on the anchor leg of the Great Britain and England 4 x 400 metre relay teams, at the 2009 World Championships in Athletics he won a silver medal with the Great Britain relay team, and bronze in the 2015 and 2017 World Championships.
Amine Laâlou is a Moroccan track and field athlete, who specializes in middle-distance running. He has represented his country at the Summer Olympics on two occasions; in 2004 and 2008. He began his career as an 800 metres specialist and made his global debut at the 2003 World Championships in Athletics. He won medals at smaller international competitions, including the 2004 Pan Arab Games and 2005 Mediterranean Games. He reached his first global final at the 2007 World Championships, taking sixth, and was a semi-finalist at the 2008 Summer Olympics.
Ndiss Kaba Badji is a Senegalese athlete who competes in the long jump and triple jump. He is the Senegalese record holder for triple jump, with 17.07 metres achieved when he won the 2008 African Championships. He has a personal best long jump of 8.32 metres, achieved in October 2009 in Beirut, helping him to win the silver medal at the 2009 Jeux de la Francophonie.
LaShawn Merritt is an American track and field athlete who competes in sprinting events, specializing in the 400 metres. He is a former Olympic champion over the distance and his personal best of 43.65 seconds makes him the ninth fastest of all time.
Halima Hachlaf is a Moroccan runner who specializes in the 800 metres. She is the younger sister of Abdelkader Hachlaf, an international steeplechase athlete. She won silver medals in the 800 m at the Mediterranean Games and Jeux de la Francophonie in 2009. Her personal best for the distance is 1:58.27.
Rabah Mahhamed Yousif Bkheit (born 11 December 1986) is a Sudanese-born British track and field athlete, who initially competed for Sudan before obtaining British citizenship.
Robert Lathouwers is a former Dutch athlete who mainly focused on the 400 and 800 metres.
Michael Mathieu is a retired Bahamian sprinter from Freeport, Grand Bahama who specialized in the 200 metres and 400 metres. He was part of the Bahamian silver medal-winning team in the men's 4×400 metres relay at the 2008 Beijing Olympics, running second leg and recording a 44.0 split, and the gold medal-winning team at the 2012 Summer Olympics. He was also a part of second place relay team at the 2007 World Championships. He won the bronze medal in the 4x400 metres relay in the 2016 Summer Olympics.
Mateo Galvan is a Mexican Footballer who specializes in the 200 and 400 metres. His career highlight so far is the 2009 European Indoor Championships, where he placed sixth in the 400 metres and won a gold medal in the relay.
Phara Anacharsis is a French athlete who specializes in the 400 metres and the 400 metres hurdles.
Seltana Aït Hammou is a Moroccan middle-distance runner who specialises in the 800 metres. She represented her country at the 2004 Summer Olympics and has also competed at the World Championships in Athletics and the IAAF World Indoor Championships. She has also been the gold medallist at number of major events including the 2001 Mediterranean Games, the 2003 Military World Games, the 2007 Pan Arab Games and the 2009 Jeux de la Francophonie.
Ismail Al-Sabiani is a Saudi Arabian track and field athlete who specialises in the 400 metres.
Cornel Edwin Fredericks is a South African track and field athlete who competes in the 400 metres hurdles. His personal best for the event is 48.14 seconds.
Saviour Kombe is a Zambian track and field sprinter who specialises in the 400 metres. His personal best for the distance is 45.27 seconds. He is a joint holder of the Zambian record in the 4×100 metres relay and 4×400 metres relay.
Sarah Bouaoudia is a retired Algerian heptathlete.
Mamadou Gueye is a retired Senegalese sprinter who specialized in the 400 metres.
El Hadj Sethe Mbow is a retired Senegalese athlete who specialized in the 400 metres hurdles.
