In 1976, he tied for 6-7th in Mar del Plata (Victor Brond won). In 1979, he tied for 12-13th in Buenos Aires (Ljubomir Ljubojević and Viktor Korchnoi won).
In 1982, he tied for 9-11th in Moron (zonal, Quinteros won). In 1991, he tied for 9-11th in Buenos Aires (Bent Larsen won).