American sprinter
Debbie Dunn
Born (1978-03-26 ) 26 March 1978 (age 44)
Debbie Dunn (born 26 March 1978) is an American sprinter , who specializes in the 400 metres . Originally from Jamaica , she attended Fairmont Heights High School in Maryland , then Norfolk State University ,[1] and became an American citizen in 2004.
At the 2009 World Championships in Athletics Dunn set a personal best of 49.95 seconds to qualify for the 400 metres world final . She was a little slower in the final, however, and finished in sixth place. In the 4 x 400 m relay event she finally outpaced everybody, grabbing the gold medal together with teammates Allyson Felix , Lashinda Demus and Sanya Richards .
One year later, at the 2010 World Indoor Championships in Doha , Dunn achieved her first major individual victory by becoming 400 metres world indoor champion. She earned a second gold medal for the 4 x 400 m relay, in which the U.S. team consisting of Dunn, DeeDee Trotter , Natasha Hastings and Allyson Felix finished in 3:27.34.
In July 2012, it was announced that she tested positive for a banned substance.[2] In September 2012 she was given a two-year suspension.[3]
World Indoor Champions in women's 400 metres
World Indoor Champions in women's 4 × 400 metres relay
1991: Germany (Seuser , Schreiter , Hesselbarth , Breuer )
1993: Jamaica (Hemmings , Grant , Rattray-Williams , Richards )
1995: Russia (Chebykina , Ruzina , Kulikova , Goncharenko )
1997: Russia (Chebykina , Goncharenko , Kotlyarova , Alekseyeva )
1999: Russia (Chebykina , Goncharenko , Kotlyarova , Nazarova )
2001: Russia (Nosova , Zykina , Sotnikova , Kotlyarova )
2003: Russia (Antyukh , Pechonkina , Zykina , Nazarova )
2004: Russia (Krasnomovets , Kotlyarova , Levina , Nazarova )
2006: Russia (Levina , Nazarova , Krasnomovets , Antyukh )
2008: Russia (Gushchina , Levina , Nazarova , Zykina )
2010: United States (Dunn , Trotter , Hastings , Felix )
2012: Great Britain (Cox , Sanders , Ohuruogu , Shakes-Drayton )
2014: United States (Hastings , Atkins , McCorory , Tate , Hayes , Hargrove )
2016: United States (Hastings , Hayes , Okolo , Spencer )
2018: United States (Hayes , Moline , Wimbley , Okolo )
2022: Jamaica (Bromfield , Russell , McGregor , McPherson , James )
IAAF World / Continental Cup champions in women's 4 × 400 metres relay
1977: East Germany (Popp , Krug , Brehmer , Koch )
1979: East Germany (Kotte , Brehmer , Köhn , Koch )
1981: East Germany (Rübsam , Steuk , Wöckel , Koch )
1985: East Germany (Emmelmann , Busch , Neubauer , Koch )
1989: Americas (Crooks , Davis , Jackson , Quirot )
1992: Americas (Edeh , Crooks , Carabali , Restrepo )
1994: Great Btitain (Smith , Keough , Neef , Gunnell )
1998: Germany (Feller , Rohländer , Urbansky , Breuer )
2002: Americas (Richards , Pernía , Amertil , Guevara )
2006: Americas (S. Williams , Darling , Amertil , N. Williams )
2010: Americas (Williams , Dunn , Wilson , Amertil )
2014: Americas (Day , McCorory , McPherson , Williams-Mills )
US National Championship winners in women's 400-meter dash
1958–1979Amateur Athletic Union 1980–1992The Athletics Congress 1993–presentUSA Track & Field Notes
OT : Since 1992, championships incorporated the Olympic Trials in Olympic years, otherwise held as a discrete event.
2020 OT : The 2020 Olympic Trials were delayed and held in 2021 due to the COVID-19 pandemic .
Distance :The event was over 440 yards until 1932, 1955, 1957–8, 1961–3, 1965–6, 1969–70 and 1973–4
US National Championship winners in women's indoor 400-meter dash
1959–1979Amateur Athletic Union 1980–1992The Athletics Congress 1993–presentUSA Track & Field Notes *Distances have varied as follows: 440 yards (1959–1986), 400 meters (1987–date) alternating with 300 meters in odd numbered years starting 2015
World best yearly performance in women's 400 metres