Mark David Hylton is a former British 400 metres

400 metres

The 400 metres, or 400 metre dash, is a common sprinting event in track and field competitions. It has been featured in the athletics programme at the Summer Olympics since 1896 . On a standard outdoor running track, it is exactly one lap around the track. Runners start in staggered positions and...

 sprinter. Hylton won a silver medal

Silver medal

A silver medal is a medal awarded to the second place finisher of contests such as the Olympic Games, Commonwealth Games, and contests with similar formats....

 in the relay at the 1996 Summer Olympics

1996 Summer Olympics

The 1996 Summer Olympics of Atlanta, officially known as the Games of the XXVI Olympiad and unofficially known as the Centennial Olympics, was an international multi-sport event which was celebrated in 1996 in Atlanta, Georgia, United States....

 in Atlanta.

He tested positive for nandrolone

Nandrolone

Nandrolone is an anabolic steroid that may be present naturally in the human body, albeit in minute quantities of less than 0.4 ng/ml. Nandrolone is most commonly sold commercially as its decanoate ester and less commonly as a phenylpropionate ester...

 in 1999, but a two-year ban was overturned following an appeal which revealed errors in the testing of his sample. One aspect of the test showed a level of nandrolone at three nanograms per millilitre (one nanogram above the maximum limit), but flaws in other aspects saw the ban dismissed due to reasonable doubt.

Achievements

Representing
1996	Olympic Games Athletics at the 1996 Summer Olympics At the 1996 Summer Olympics in Atlanta, 44 events in athletics were contested, 24 by men and 20 by women. There were a total number of 2053 participating athletes from 191 countries.-Men:...	Atlanta, United States Atlanta, Georgia Atlanta is the capital and most populous city in the U.S. state of Georgia. According to the 2010 census, Atlanta's population is 420,003. Atlanta is the cultural and economic center of the Atlanta metropolitan area, which is home to 5,268,860 people and is the ninth largest metropolitan area in...	2nd	4x400 m relay
1997	European U23 Championships 1997 European Athletics U23 Championships The 1997 European Athletics U23 Championships is the 1997 version of the European Athletics U23 Championships. It was held in the Finnish city of Turku.-Men's Results:-Women's Results:-Medals table:-External links:*...	Turku, Finland	1st	400 m

External links

• Mark Hylton biography and Olympic results, from http://www.sports-reference.com/.