Osorio was 20 years old when he represented his country at the 1996 Summer Olympics, he competed in the 200 metre butterfly event, he swam his heat in 2:12.59 minutes and finished 42nd overall so didn't qualify for the finals.[2]
^In this Catalan name, the first or paternal surname is Osorio and the second or maternal family name is Marti; both are generally joined by the conjunction "i".