Echevarría received a scholarship from the Pontifical Catholic University of Puerto Rico, located in the neighboring city of Ponce and joined that institution's track and field team.
Echevarría became interested in the game after learning its principles and decided to join a local softball club called Las Estrellas de Seboruco.
In 1979, Echevarría made her pitching debut in the Pan American Games celebrated in San Juan, Puerto Rico.
In 1993, Echevarría and her team won the gold medal in softball in the Centro American Games held in Ponce, Puerto Rico.
Echevarría was the standard carrier for her team when they represented Puerto Rico in the 1996 Olympics held in Atlanta, United States.