Tigran Vartanovich Petrosian vs Mario Bertok
Zagreb Zagreb YUG round 5 1965.04.17
English Opening: Carls-Bremen System 1-0

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

Mario Bertok vs Zdravko Vospernik
YUG-ch Novi Sad YUG round 8 1955.02.10
Sicilian Defense: Richter-Rauzer Variation, Neo-Modern Variation 1-0

Srecko Nedeljkovic vs Mario Bertok
YUG-ch 6th Ljubljana YUG round 3 1951.01.05
Grünfeld Defense: Counterthrust Variation 1-0

Mario Bertok vs Alexander Prameshuber
Budapest Zonal Budapest HUN round 2 1960.05.06
Catalan Opening: Closed 1-0

Mario Bertok vs Lev Polugaevsky
Chigorin Memorial Sochi URS round 8 1966.07.??
Catalan Opening: Open Defense, Classical Line 1/2-1/2