on 31 may 2005, dimas participated in the miss universe contest after months of preparation, but during the final night of the event did not qualify for the fifteen semi-finalists. on 23 october 2005, dimas took part in the miss earth pageant held in quezon city, philippines, where she placed in the top sixteen finalists. this was the first time a contestant from el salvador reached the finals. in december of the same year dimas participated in the miss piel dorada pageant held in costa rica. dimas won a car and a contract to pose for the "calendario piel dorada" (calendar of golden skin) in the 2006 edition. dimas is the thirty-fourth woman to win the title of miss el salvador.