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.
David Oliver, is the Director of Track & Field at Howard University and a retired American hurdling athlete. As a professional athlete, he competed in the 110 meter hurdles event outdoor and the 60 meter hurdles event indoors. He is the former 110 meter hurdles champion winning the gold medal at the World Championships in Moscow in 2013 with a time of 13 seconds. He won the bronze medal in the 2008 Olympic Games and won another bronze at the 2010 IAAF World Indoor Championships.
Aries Merritt is an American track and field athlete who specializes in the 110 metre hurdles, and currently holds the world record in that event with a time of 12.80 s set on September 7, 2012. He won the gold medal in the 110 metre hurdles at the 2012 Summer Olympics in London.
Stéphane Caristan is a retired hurdler from France, who set the world's best year performance in 1986. He did so by winning the men's 110 metres hurdles final at the European Championships in Stuttgart, clocking 13.20, which was also his personal best. He competed in three consecutive Summer Olympics for his native country, starting in 1984. Caristan later became the coach of French sprinter Christine Arron.
Ronald Joseph Forbes is a track athlete from the Cayman Islands.
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.
Pedro Paulo Chiamulera is a retired Brazilian track and field athlete who competed in the 110 metres hurdles and 400 metres hurdles. He represented his country at the 1992 and 1996 Summer Olympics, as well as five consecutive World Championships starting in 1987.
Yasmani Copello Escobar is a Cuban-born track and field hurdler who represents Turkey internationally. His personal best for the 400 metres hurdles is 47.81 seconds, set in the final of the 2018 European Athletics Championships in Berlin.
Joanna Linkiewicz is a Polish athlete specialising in the 400 metres hurdles. She placed 8th at the 2014 European Championships to take a silver medal at the competition two years later.
Omar McLeod is a Jamaican professional hurdler and sprinter competing in the 60 m hurdles and 110 m hurdles. In the latter event, he is the 2016 Olympic champion and 2017 World champion. He was NCAA indoor champion in the 60 m hurdles in 2014 and 2015 and outdoor champion in the 110 m hurdles in 2015; he turned professional after the 2015 collegiate season, forgoing his two remaining years of collegiate eligibility. His personal best in the 110 m hurdles ranks him equal 7th on the world all-time list.
Christoph Pöstinger is a retired Austrian sprinter who competed primarily in the 200 metres. He represented his country at the 1992 and 1996 Summer Olympics, as well as one outdoor and two indoor World Championships.
Julien Watrin is a Belgian sprinter specialising in the 400 metres. In 2023, he won his first individual major senior medal, with silver at the European Indoor Championships. Watrin earned several major medals with national men's 4 × 400 m relays, including bronzes at the 2019 and 2022 World Athletics Championships.
The Czechoslovak Athletics Championships was an annual outdoor track and field competition organised by the Czechoslovakia Athletics Association, which served as the national championship for the sport in Czechoslovakia.
The Belgian Athletics Championships is an annual outdoor track and field competition organised by the Royal Belgian Athletics League, which serves as the national championship for the sport in Belgium.
Manlio Molinari is a retired Sammarinese athlete who competed in the 400 and 800 metres. He represented his country at four consecutive Summer Olympics, starting in 1984. Molinari was the flag bearer for San Marino in the 1996 Summer Olympics opening ceremony.
Ruebin Natardy Walters is an athlete from Trinidad and Tobago specialising in the high hurdles. He represented his country at the 2017 World Championships without reaching the semifinals.
João Pedro Ferreira is a Portuguese former athlete who competed primarily in the 400 metres hurdles. He represented his country in the 4 × 100 metres relay at the 2011 World Championships without qualifying for the final.
The Russian Athletics Championships is an annual outdoor track and field competition organised by the All-Russia Athletic Federation (ARAF), which serves as the Russian national championship for the sport. It is typically held as a four-day event in the Russian summer around late June to early August. The venue of the championships is decided on an annual basis.
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.
Kenneth Selmon is an American track and field athlete who specializes in the 400 metres hurdles. He won the USA Outdoor Championship in 2018 and represented his country at the 2018 Athletics World Cup in London, where he won the 400 metres hurdles.
Belgium 
