Oleg Korneev vs Ivan Salgado Lopez
Sevilla op 31st Sevilla round 4 2006.01.07
Sicilian Defense: Najdorf Variation 1-0

Oleg Leonidovich Moiseev vs Vladimir Simagin
USSR Championship Moscow URS round 6 1951.11.21
King’s Indian Defense: Accelerated Averbakh Variation 0-1

Oleg Loskutov vs Viacheslav Zakhartsov
Alushta Alushta 2005.??.??
Sicilian Defense: Najdorf Variation, Opocensky Variation 0-1

Oleg Simukov vs Leonid Akulov
UKR-chT Alushta UKR round 10 1999.??.??
Döry Defense 1/2-1/2

Oleg V Biriukov vs Sergey Solovjov
Chigorin mem open St. Petersburg RUS round 6 2001.10.31
King’s Indian Defense: Orthodox Variation, Classical System 1/2-1/2

Oleg Yuzhakov vs Temirlan Baltabaev
Polugaevsky Memorial Samara RUS round 8.18 2014.07.09
Queen’s Pawn Game: Veresov Attack, Boyce Defense 1-0

Olesia Vlasova vs Ruoshui Cao
World Cadets U12 Batumi GEO round 6.3 2016.10.24
Sicilian Defense: Najdorf Variation 1-0

Olga Dolzhikova vs Aloyzas Kveinys
Fagernes GM Open Fagernes NOR round 1.9 2014.04.13
Sicilian Defense: Alapin Variation 0-1

Olga Girya vs Aleksandra Goryachkina
European Championship (Women) Tbilisi GEO round 1 2011.05.07
Slav Defense: Czech Variation, Classical System, Main Line 0-1

Olga Girya vs Jovana Eric
European Club Cup (Women) Ulcinj MNE round 5.4 2019.11.14
Dutch Defense 1-0