Mezue ahịrịokwu na-esonụ: Ọ pụtara ọzọ n'asọmpi mba ụwa mgbe afọ atọ gasịrị. O mechara nke ise na mita 400 na 1999 Central American na Caribbean Championship na Athletics ma merie ọla edo na ndị otu relay. Na 1999 World Championships na Athletics, o guzobere otu na McIntosh, Munnings na Chris Brown na-apụta ma rute na ngwụcha. Ha mechara nke asaa mana e mere ka ha dị elu na nke isii mgbe a chụrụ ndị otu America n'ihi Antonio Pettigrew na-anabata ọgwụ mgbochi. Otu nkwụsị ahụ mechara mee ka Oliver nweta ihe nrite Olimpik mbụ ya: n'egwuregwu Olimpik nke 2000 na Sydney, ndị otu Bahamas nke Avard Moncur, McIntosh na Brown bụ ndị nke anọ na mbụ n'egwuregwu Olimpik.
4 × 400 mita relay ikpeazụ mana ndị otu America ka a chụpụrụ na 2008 na Oliver na ndị otu nwetara ọla nchara n'ihi ya.