[4] Prado had chances to earn a good result also in the 200-metre individual medley, but the conditions were adverse in Ecuador.

I managed to reach the final of the 200-metre individual medley, but I was weak because food there was terrible, and finished the race in eighth place."

[8][9] Prado won the silver medal in the men's 400-metre individual medley at the 1984 Summer Olympics in Los Angeles, California.

[11] At the 1986 World Aquatics Championships in Madrid, Prado competed in the 200-metre individual medley final, finishing seventh.

During that year, he still swam well, earning medals in the Pan American Games, and spoke to journalists about training for the 1988 Olympics in Seoul.

[15][20] In 2003, at 38 years old, Prado suffered a heart attack, and later had an angioplasty procedure at a hospital in Dallas, Texas.

[21] Prado served as sports manager of the Organizing Committee of the 2007 Pan American Games in Rio de Janeiro.

As of 2013, he works as sporting director of the Maria Lenk Aquatic Center in Rio de Janeiro.

[22] Prado graduated with a Masters in Economics and in Physical education from Southern Methodist University in Dallas, Texas.