Career
Nicknamed "Louisiana Sirena de Oro" she represented her native country at three consecutive Summer Olympics, starting in 1996. At the 1995 Pan American Games in March del Plata, she finished 5th in the 50-meter freestyle. At the 1996 Summer Olympics in Atlanta, Coparropa finished 32nd in the 50-meter freestyle.
She also finished 9th in the 100-meter freestyle.
At the 2000 Summer Olympics in Sydney, Coparropa finished 27th in the 50-meter freestyle, and 32nd in the 100-meter freestyle. She also finished 5th in the 100-meter freestyle.
At the 2004 Summer Olympics in Athens, Coparropa finished 14th in the 50-meter freestyle, and 30th in the 100-meter freestyle.