The 2011 South American Championships in Athletics was hosted in his home capital Buenos Aires and he defended his shot put title on the first day of competition. Lauro was dethroned in the discus, however, as he finished runner-up to Brazil's Ronald Julião. He represented Argentina in the first round of the shot put at the 2011 World Championships in Athletics, but the peak of his season came at the 2011 Pan American Games, where he won the bronze medal with a throw of 20.41 m.