Kammala wannan jumla: Arango Buitrago ya fara shiga cikin kimanin shekara guda bayan Chope ya kusance shi. Ta fara gwada gudu yayin da take makanta a Estadio Alfonso Galvis Duque kuma daga can ta sami sha'awar wasan. A shekara ta 2011, an zaɓe ta don ƙungiyar 'yan wasan Colombia a gasar cin kofin duniya.
Gasar Wasanni ta Duniya ta IPC. Ta yi gasa a wasanni biyu, tseren mita 400 da 800. A cikin cancantar 400m an sanya ta a cikin na ƙarshe na zagaye uku. Kodayake ta gama a matsayi na biyu a bayan Tracey Hinton na Burtaniya, lokacinta na 1:07.94 shine mafi saurin lokacin rashin nasara na zafin kuma ta ɗauki matsayi na huɗu a wasan karshe. A wasan karshe, duk da gudanar da mafi kyawun kakar wasa ta 1:05.88, Arango Buitrago ya gama a waje da lambobin yabo a matsayi na hudu. A cikin tseren tseren mita 800 ta buga lokaci na 2: 31.31 a zagayen na biyu don wucewa a matsayi na farko da ke kafa rikodin yanki. Ta gudu a hankali a wasan karshe, amma har yanzu ya ishe ta ta gama na biyu a bayan Jamhuriyar Czech Miroslava Sedlackova don karɓar lambar azurfa.