Pedzisa mutsara unotevera: Akabva mumitambo, sezvo amai vake Julia del Río vakanga vakwikwidzana munyika yose kuChile paIAAF World Cross Country Championships. Akatanga kudzidzira kumhanya kure naamai vake semurairidzi wake achiri muduku. Díaz akaita kutanga kwake kwepasi rose pa2008 South American Youth Championships muAtletics, uko aive wechipfumbamwe. Akamirira nyika yake pamwero wepasi rose gore rakatevera, achimhanya mukupisa pa2009 World Youth Championships muAthletics. Akadzokera kumakondinendi mu2010 South American Youth Championships muAtletics uye akabudirira kekutanga, achitora goridhe re1500 m pamunda wemba muSantiago de Chile. Imwe menduru padanho revechidiki yakauya pa2010 South American Cross Country Championships, uko kwake kwechina-kumagumo kwakatungamira Chile kumenduru dzebronze dzechikwata. Akatanga kuita fambiro mberi muchikamu chepasi pemakore makumi maviri pa
2011 South American Junior Championships muAtletics, kutora bronze semudiki 1500 m medalist pamwe nechina mu800 m.