Ku dhammaystiro weedha soo socota: Ivančević wuxuu ku dhashay magaalada Zagreb, wuxuuna bilaabay jimicsiga isagoo yar, laakiin wuxuu u wareegay ciyaaraha fudud isagoo 15 jir ah ka dib markii uu toban sano guul yar ka gaaray ciyaartii hore. Iyada oo diiradda saareysa caqabadaha halkii ay ka ahayd, waxay ku tartantay heer caalami dhalinyaro waxayna ku tartantay heerarka kulul ee labada 2001 World Youth iyo 2002 World Junior Championships ee Ciyaaraha fudud. Waxay ku guuleysatay rikoorkii da'yarta ee Croatia dhacdadii dambe. Waxay si tartiib tartiib ah u hagaajisay rikoorkeedii ugu fiicnaa ee shaqsiyadeed xilliyadeedii ugu horreeyay ee ay tahay ciyaartooyda da'da weyn, iyada oo leh rikoorkeedii ugu fiicnaa ee 13.86 ilbiriqsi ee 100 m caqabadaha 2003, 13.64 sanadkii 2004, ka dibna 13.60 sanadkii 2005. Waxay ka qeyb gashay kaliya wareega koowaad ee tartanka
2005 European Athletics U23 Championships waxayna sameysay kulankeedii ugu horeeyay ee ciyaaraha fudud ee 2006 European Athletics Championships, mar labaad waxay ku tartameysay kaliya heerka koowaad. Markii ugu fiicnayd ee shaqsiyadeed ee 13.42 ilbiriqsi waxay timid 2006, laakiin muuqaal kale oo ka muuqday 2007 Summer Universiade ayaa mar kale ku guuldareysatay inay ka gudubto kuleylka.