Who: Marion Jones
Olympics: Sydney 2000

Baseball players weren’t the only ones juicing up at the turn of the millennium—track stars were just as likely to be dirty. After winning three gold and two bronze medals in Sydney, Marion Jones was eventually found to have lied to investigators and was sentenced to serve six months in jail in 2008. Jones had been accused of doping dating back to her high school days in California so the question is: How many more of her records are tainted?