Men Track and road events - The United States was initially stripped of the relay gold medal on July 18, 2004, after Young was deemed ineligible to have competed in Sydney due to doping violations. The medals were returned to all athletes, except Young, on July 22, 2005 when the
Court of Arbitration for Sport ruled that the IAAF and IOC rules in 2000 did not call for the disqualification of an entire team due to the doping offenses of one athlete. Later, the medals were stripped again on August 2, 2008, after Pettigrew admitted to also using performance enhancing drugs. Pettigrew's individual results were also nullified.
Field events Combined events – Decathlon Women Track and road events - Athlete that ran in the heats but not the final. - Jones was stripped of her medals on December 12, 2007, after she admitted to taking performance enhancing drugs prior to the 2000 Olympics. Both relay teams were further disqualified and stripped of their medals by the IOC on April 10, 2008. The athletes appealed to the
Court of Arbitration for Sport, which restored medals to all teammembers, except Jones, on July 16, 2010 because the IAAF and IOC rules in 2000 did not call for the disqualification of an entire team due to the doping offenses of one athlete.
Field events Combined events – Heptatlon ==Badminton==