On October 22, 2008, Pacheco competed at the Miss Puerto Rico Universe 2009 pageant representing the state of Ponce.
On August 1, 2009, Pacheco competed at the Miss International Beauty 2009 pageant representing her country Puerto Rico.
[citation needed] On November 7, 2011, Pacheco competed at the Miss Universe Puerto Rico 2012 pageant representing the city of Yabucoa.
Darli represented Puerto Rico at the Miss Earth 2012 pageant in Indonesia but failed to place in the semifinals.
[2] Pacheco represented Ponce at Miss Mundo de Puerto Rico 2014 where she finished in the Top 6.