The 400 metres hurdles is a track and field hurdling event. The event has been on the Olympic athletics programme since 1900 for men and since 1984 for women.
Joanna Dove Hayes is an American hurdler, who won the gold medal in the 100 metres hurdles at the 2004 Summer Olympics.
The 110 metres hurdles, or 110-metre hurdles, is a hurdling track and field event for men. It is included in the athletics programme at the Summer Olympic Games. The female counterpart is the 100 metres hurdles. As part of a racing event, ten hurdles of 42 inches (106.7 cm) in height are evenly spaced along a straight course of 110 metres. They are positioned so that they will fall over if bumped into by the runner. Fallen hurdles do not carry a fixed time penalty for the runners, but they have a significant pull-over weight which slows down the run. Like the 100 metres sprint, the 110 metres hurdles begins in the starting blocks.
The 100 metres hurdles, or 100-meter hurdles, is a track and field event run mainly by women. For the race, ten hurdles of a height of 33 inches (83.8 cm) are placed along a straight course of 100 metres (109.36 yd). The first hurdle is placed after a run-up of 13 metres from the starting line. The next 9 hurdles are set at a distance of 8.5 metres from each other, and the home stretch from the last hurdle to the finish line is 10.5 metres long. The hurdles are set up so that they will fall over if bumped into by the runner, but weighted so this is disadvantageous. Fallen hurdles do not count against runners provided that they do not run into them on purpose. Like the 100 metres sprint, the 100 m hurdles begins with athletes in starting blocks.
Sally Pearson, OAM is a retired Australian athlete who competed in the 100 metre hurdles. She is the 2011 and 2017 World champion and 2012 Olympic champion in the 100 metres hurdles. She also won a silver medal in the 100 m hurdles at the 2008 Summer Olympics and the 2013 World Championships.
David "Dai" Greene is a British hurdler who specialises in the 400 metres hurdles, competing internationally for both Wales and Great Britain, as well as Europe in the IAAF Intercontinental Cup.
Ryan Brathwaite is a track and field athlete from Barbados who won the gold medal in the 110 metres hurdles at the 2009 World Championships in Athletics in Berlin. In recognition of his achievements, on September 17, 2009 Brathwaite was given the honour of being an ambassador while formally receiving the title Ambassador His Excellency Ryan Brathwaite.
Nicholas Hough is an Australian sprinter and hurdler.
Wilhem Belocian is a French hurdler and sprinter from Guadeloupe.
Orlando Ortega Alejo is a Cuban-born Spanish track and field athlete who competes in the 110 metres hurdles. His personal best for the event is 12.94 seconds and he was the silver medallist at the 2016 Olympics.
Michelle "Shelly" Jenneke is an Australian hurdler and model. She won a silver medal for the 100 m hurdles at the 2010 Summer Youth Olympics and the 100 m hurdles at the 2016 Australian Athletics Championships to qualify for the Rio Olympic Games. In 2012, she received worldwide media attention after her pre-race warm-up dance went viral on the internet and was featured in the 2013 Sports Illustrated Swimsuit Issue.
Maoulida Darouèche is a Comoran hurdler who specialises in the 400 metres hurdles and who has also competed in the javelin throw. Darouèche competed in the 2012 Summer Olympics and the 2016 Summer Olympics. At both Olympics he competed in the 400 metres hurdles. He has also competed in two World Championships, an African athletics championships and a Jeux de la Francophonie.
Karsten Warholm is a Norwegian sprinter who competes in the 400 metres and 400 m hurdles. He is the 2020 Tokyo Olympic champion, a three-time world champion and the world record holder in the latter event.
Jaheel Hyde is a Jamaican track and field athlete. He was the 2014 world junior champion in the 400 metres hurdles and the 2013 world youth champion in the 110 metres hurdles.
Dalilah Muhammad is an American track and field athlete who specializes in the 400 meters hurdles. She is the 2016 Rio Olympics champion and 2020 Tokyo Olympics silver medalist, becoming at the latter the then-second-fastest woman of all time in the event with her personal best of 51.58 seconds. Muhammad was second at both the 2013 and 2017 World Championships to take her first gold in 2019, setting the former world record of 52.16 s. She was the second female 400 m hurdler in history, after Sally Gunnell, to have won the Olympic, World titles and broken the world record. At both the 2019 World Championships and Tokyo Games, she also took gold as part of women's 4 × 400 metres relay team.
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.
Nadine Visser is a Dutch track and field athlete who competed in the combined events until 2017 and specialises in short hurdling since 2018.
Hassane Fofana is an Italian athlete specialising in the high hurdles. He is of Ivorian descent. He competed at the 2020 Summer Olympics, in 110 m hurdles.
Ned Justeen Azemia is a Seychellois hurdler who specialises in the 400 metres hurdles. He is the current Seychellois record holder in the event. Azemia competed in the 2016 Summer Olympics in Rio de Janeiro in the 400 metres hurdles. He has also competed in two World Junior Championships, an African athletics championships and an African Youth Games. Azemia has also raced over the flat 400 metres distance.
Ronald Levy is a Jamaican male track and field athlete who competes in the 110 metres hurdles. He holds a personal best of 13.05 seconds for that event, set in 2017, as well as a 100 metres sprint best of 10.17 seconds. He was the gold medallist at the 2018 Commonwealth Games and represented his country at the World Championships in Athletics in 2017.
