Carter's positive dope test denies Bolt 9th Olympic gold medals

The fastest human ever timed, Usain Bolt, has lost one of his nine Olympic gold medals after the International Olympic Committee (IOC) caught Nesta Carter, 31, doping at the 2008 Beijing Games which Jamaica won the 4x100m relay.

According to IOC, Carter's re-analysis of his 2008 samples “resulted in a positive test for the prohibited substance methylhexaneamine.”

The retesting of hundreds of samples from the Beijing event, means that Bolt, as Carter’s teammate, loses one of the three gold medals he won at that Olympics.

It would be recalled that Bolt won gold in the 100m, 200 and the 4x100m at Beijing and then went on to repeat the feat in London in 2012 and again in Rio last year.

The IOC Disciplinary Commission ruled that Carter “is found to have committed an anti-doping rule violation pursuant to the IOC Anti-Doping Rules applicable to the Games of the XXIX Olympiad in Beijing in 2008.”

As such, he “is disqualified from the men’s 4x100m relay event” and must return his medal while the team is likewise disqualified and must hand back their medals.

The IOC said that Russia’s Tatiana Lebedeva, who won silver in the women’s triple jump event and long jump, had also been disqualified following re-analysis of her samples which showed up positive for dehydrochlormethyltestosterone (turinabol), a substance on the world body’s banned list.

    From left, Powell, Carter, Bolt and Frater celebrate in Beijing

CARTER'S ANOMALY

Carter was tested on the evening of the Beijing final in 2008 but that was found at the time to contain no "adverse analytical finding".More than 4,500 tests were carried out at those Games, with nine athletes caught cheating.

An anomaly was discovered in Carter's submission following the IOC's decision to retest 454 samples from Beijing using the latest scientific analysis methods.

Carter and the Jamaican National Olympic Committee were told of the adverse finding in May - before the Rio Games - and told his B sample would be tested.

It was gathered hat Carter's A sample had been found to contain methylhexanamine, which has been on the World Anti-Doping Agency (Wada) prohibited list since 2004.

It was reclassified in 2011 as a "specified substance", meaning one that is more susceptible to a "credible, non-doping explanation".

Sold as a nasal decongestant in the United States until 1983, methylhexanamine has been used more recently as an ingredient in dietary supplements.