Pedro Caíno was the Argentine road racing champion of 1981, but was also a good track racer. He had been a member of the bronze medal winning 4000 m pursuit team (with Carlos Miguel Álvarez, Eduardo Trillini, and Juan Carlos Haedo) at the 1979 Pan American Games, and at the 1984 Los Angeles Olympics he raced in both the individual pursuit and the team pursuit. Together with Haedo, he also competed in Six Day Races, twice coming 6th in Buenos Aires. On the road, his biggest victory was the 1982 Vuelta del Uruguay stage race. Caíno continued to race until his death, often doing well in Argentine Masters Championships. He suffered a fatal heart attack while cycling near his home town of La Paz at the age of 58.