Andre Thiellement vs Giorgio Porreca
Clare Benedict Cup Mont Pelerin SUI round 4 1953.04.11
Queen’s Pawn Game: Veresov Attack, Boyce Defense 1/2-1/2

Giorgio Porreca vs Mario Bertok
Zagreb Zagreb YUG round 3 1955.11.03
Sicilian Defense: Najdorf Variation 1-0

Giorgio Porreca vs David Bronstein
Belgrade Belgrade YUG round 10 1954.11.??
Caro-Kann Defense: Classical Variation 0-1

Giorgio Porreca vs Berthold Koch
Helsinki ol (Men) prel-B Helsinki FIN round 5 1952.08.16
Catalan Opening: Open Defense 1-0

Gedeon Barcza vs Giorgio Porreca
Zagreb Zagreb YUG round 2 1955.11.02
King’s Indian Attack 1-0

Josef Lokvenc vs Giorgio Porreca
Helsinki ol (Men) prel-B Helsinki FIN round 2 1952.08.11
Ruy Lopez: Closed 1-0

Tigran Vartanovich Petrosian vs Giorgio Porreca
Belgrade Belgrade YUG round 1 1954.10.??
Queen’s Gambit Declined: Albin Countergambit 1-0

Dragoslav Andric vs Giorgio Porreca
Belgrade Belgrade YUG 1952.??.??
Modern Defense 1/2-1/2