Leonid Alexandrovich Shamkovich vs Robert Wachtel
78th US Open Columbus, OH USA 1977.08.??
Sicilian Defense: Taimanov Variation, American Attack 1-0

Robert Wachtel vs Lawrence Day
Toronto Closed Toronto Ontario 1972.??.??
Sicilian Defense: Kan Variation, Gipslis Variation 1-0

Larry Mark Christiansen vs Robert Wachtel
78th US Open Columbus, OH USA round 9.4 1977.08.16
Pirc Defense: Classical Variation 1-0