 Ramba uchiverenga ndima ino - Pamakwikwi eOlympic a2012 muLondon, Oliveira akakwikwidza mumitambo imwe cheteyo yomunhu oga aine mazuva maviri chete ari pakati. Akawana FINA B-mazinga e1: 59.72 200 m backstroke kubva kuEuropean Championships muDebrecen, Hungary, uye 1: 58.50 200 m butterfly kubva kuSummer Universiade muShenzhen, China. Mumutambo wake wokutanga, 200 m butterfly, Oliveira akaisa makumi maviri nemaviri mumatangiro emangwanani. Akapfuura nomumunda wose kuti atungamirire kupisa kwechipiri mune zvakanakisisa zvevanhu zvemicheka ye1:58.45. Mazuva maviri gare gare, mumakwikwi emamita mazana maviri kumusana, Oliveira akakwikwidza nevamwe vanomwe vanoshambira mumakwikwi akafanana, kusanganisira Gábor Balog wekuHungary, akapedzisa muEuropean Championships. Akaisa rekodhi itsva yechiPutukezi ye1:58.83 kuti awane nzvimbo yechipiri shure kwaBalog. Oliveira akarasikirwa nemasemifinal gumi nematanhatu epamusoro nezvikamu zvitanhatu kubva pagumi 0.60, sezvo akaisa makumi maviri mumasekondi ekutanga. 