Boris Spassky vs Orest Averkin
USSR Championship Moscow URS round 2 1973.10.03
Sicilian Defense: Taimanov Variation 1-0

Semyon Abramovich Furman vs Orest Averkin
USSR Championship Moscow URS round 22 1969.10.09
Neo-Grünfeld Defense: Exchange Variation 0-1

Vladimir Savon vs Orest Averkin
USSR Championship Moscow URS round 10 1969.09.19
French Defense: Diemer-Duhm Gambit 1/2-1/2

Orest Averkin vs Efim Geller
USSR Championship Moscow URS round 13 1969.09.24
King’s Indian Defense: Orthodox Variation 1-0

Orest Averkin vs Viktor Kupreichik
USSR Championship Moscow URS round 15 1969.09.27
Neo-Grünfeld Defense: Ultra-delayed Exchange Variation 1-0

Orest Averkin vs Vagn Jensen
WchT U26 fin-A 16th Dresden GDR round 1 1969.08.08
Dutch Defense: Leningrad Variation, Matulovic Variation 1-0

Tigran Vartanovich Petrosian vs Orest Averkin
USSR Championship Moscow URS round 20 1969.10.05
Indian Defense: Schnepper Gambit 1/2-1/2