Rubuta ci gaba don wannan sakin layi - Barrios ya yi gasa ne kawai a cikin 'yan mata na mita 50
a wasannin Olympics na shekara ta 2000 a Sydney. Ta cimma nasarar FINA B-cut na 27.22 daga Wasannin Pan American a Winnipeg, Manitoba, Kanada. Ta kalubalanci wasu masu iyo bakwai a zagaye na huɗu, gami da shigo da Rasha Yekaterina Tochenaya na Kyrgyzstan, da kuma 'yar wasan Olympics sau biyu ta Yugoslavia Duška Radan. Ta adana matsayi na bakwai a kan Aissatou Barry na Guinea ta hanyar bambanci mai yawa na 7.68 seconds a 28.11. Barrios ta kasa ci gaba zuwa wasan kusa da na karshe, yayin da ta sanya ta hamsin da biyu a cikin duka masu iyo 74 a cikin prelims.