These strong performances seemed to bode well for the 1976 Biel Interzonal, but, facing a field of 16 strong Grandmasters out of 19 opponents, including former World Champions Tigran Petrosian and Mikhail Tal, he scored a disappointing 8.5/19 for 16th place. Haifa 1976 marked his last Olympiad appearance for Argentina and he made 4.5/7 on board four.