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.
Lashinda Demus is a retired American hurdler who specialized in the 400 meter hurdles, an event in which she was the 2011 world champion and 2012 Olympic gold medalist, becoming the first woman from the United States to win the Olympic 400 m hurdles title.
The men's 400 metres hurdles was an event at the 1996 Summer Olympics in Atlanta, Georgia. There were 55 competitors from 35 nations. The maximum number of athletes per nation had been set at 3 since the 1930 Olympic Congress. The event was won by Derrick Adkins of the United States, the nation's fourth consecutive and 16th overall victory in the event. Samuel Matete of Zambia earned that nation's first medal in the event with his silver. American Calvin Davis took bronze.
These are the official results of the Women's 400 metres hurdles at the 1992 Summer Olympics in Barcelona, Spain. There were 27 participating athletes plus one non-starter.
These are the official results of the Women's 400 metres Hurdles event at the 1991 IAAF World Championships in Tokyo, Japan. There were a total number of 33 participating athletes, with five qualifying heats, two semi-finals and the final held on Thursday August 29, 1991.
These are the official results of the Men's 400 metres Hurdles event at the 1991 IAAF World Championships in Tokyo, Japan. There were a total number of 36 participating athletes, with five qualifying heats, two semi-finals and the final held on Tuesday August 27, 1991.
These are the official results of the Women's 100 metres hurdles event at the 1993 IAAF World Championships in Stuttgart, Germany. There were a total number of 43 participating athletes, with three semi-finals and six qualifying heats and the final held on Friday August 20, 1993.
These are the official results of the Men's 400 metres Hurdles event at the 1993 IAAF World Championships in Stuttgart, Germany. There were a total of 49 participating athletes, with seven qualifying heats, three semi-finals and the final held on Thursday 1993-08-19.
These are the official results of the Men's 400 metres hurdles event at the 1994 European Championships in Helsinki, Finland, held at Helsinki Olympic Stadium on 7, 8, and 10 August 1994.
These are the official results of the Men's 400 metres Hurdles event at the 1995 IAAF World Championships in Gothenburg, Sweden. There were a total number of 54 participating athletes, with seven qualifying heats, two semi-finals and the final held on Thursday 1995-08-10.
These are the official results of the Men's 400 metres Hurdles event at the 1997 IAAF World Championships in Athens, Greece. There were a total number of 51 participating athletes, with seven qualifying heats, three semi-finals and the final held on Monday 4 August 1997.
These are the official results of the Men's 400 metres Hurdles event at the 1999 IAAF World Championships in Seville, Spain. There were a total number of 50 participating athletes, with seven qualifying heats, two semi-finals and the final held on Friday, 27 August 1999 at 21:00.
These are the official results of the Men's 400 metres Hurdles event at the 2001 IAAF World Championships in Edmonton, Alberta, Canada. There were a total number of 42 participating athletes, with six qualifying heats, three semi-finals and the final held on Friday August 10, 2001 at 21:05h.
These are the official results of the Women's 400 metres hurdles event at the 1982 European Championships in Athens, Greece, held at Olympic Stadium "Spiros Louis" on 9 and 10 September 1982.
These are the official results of the Women's 400 metres hurdles event at the 1986 European Championships in Stuttgart, West Germany, held at Neckarstadion on 28, 29, and 30 August 1986.
These are the official results of the Women's 400 metres Hurdles event at the 1983 IAAF World Championships in Helsinki, Finland. There were a total number of 31 participating athletes, with four qualifying heats, two semi-finals and the final held on Wednesday 1983-08-10.
These are the official results of the Women's 400 metres Hurdles event at the 1987 IAAF World Championships in Rome, Italy. There were a total number of 35 participating athletes, with five qualifying heats, two semi-finals and the final held on Thursday 1987-09-03.
The Women's 400 metres Hurdles at the 1984 Summer Olympics in Los Angeles, California, United States, had an entry list of 26 competitors, with four qualifying heats and two semifinals (16) before the final (8) took place on August 8, 1984. The event made its Olympic debut at these games.
These are the official results of the Women's 400 metres hurdles event at the 1999 IAAF World Championships in Seville, Spain. There were a total number of 28 participating athletes, with four qualifying heats, two semi-finals and the final held on Wednesday 1999-08-25 at 20:45h.
These are the official results of the men's 400 metres hurdles event at the 1983 IAAF World Championships in Helsinki, Finland. There were a total number of 34 participating athletes, with five qualifying heats, two semi-finals and the final held on 9 August 1983.
