 Gore rakatevera Ennis akakwikwidza mu2004 World Junior Championships muGrosseto, Italy, kwaakapedza ari wechisere aine 5,542 points, zvakare mushure mekutungamira pakupera kwezuva rekutanga. Ennis akahwina menduru mbiri dzesirivha, mumakwikwi emamita zana uye pakusvetuka pakakwirira, pa2004 Commonwealth Youth Games muBendigo, Australia, yakaitwa munaNovember naDecember 2004, uye akakunda heptathlon paJuly 2005 European Athletics Junior ChampionshipsmuKaunas, kuLithuania, nechiverengero chepamusoro-soro chechiduku cheBritain chemapoinzi 5.891. 