His next international appearances came three years later. He finished fifth in the 400 m at the 1999 Central American and Caribbean Championships in Athletics and won gold with the relay team. At the 1999 World Championships in Athletics, he formed a team with McIntosh, Munnings and the emerging Chris Brown and reached the final. They finished seventh but were retrospectively upgraded to sixth upon the disqualification of the American team due to Antonio Pettigrew admission of doping. That same disqualification eventually resulted in Oliver winning his first Olympic medal: at the 2000 Sydney Olympics the Bahamas team of Avard Moncur, McIntosh and Brown were the original fourth placers in the 4×400 metres relay final but the American team was retrospectively disqualified in 2008 and Oliver and the team gained a bronze medal as a result.