In tournaments, he was 9th in the 1955 World Junior Championship in Antwerp (Boris Spassky won), 2nd at São Paulo 1960 (zonal, Julio Bolbochán won), and finished 19-20th at Stockholm 1962 (interzonal). In 1962, he tied for 3rd-4th in Mar del Plata (Latin American; Garcia won). In 1963, Schweber won in São Paulo. In 1963, he tied for 3rd-5th in Fortaleza (zonal, Hector Rossetto won). In 1964, he took 2nd in Rio de Janeiro (zonal, playoff).