Lazaros Zapounidis vs Sergei Ovsejevitsch
Korinthos Korinthos GRE round 1 2001.07.28
King’s Indian Defense: Four Pawns Attack 0-1

Aleksander Mista vs Sergei Ovsejevitsch
Rubinstein Memorial 49th Polanica-Zdroj POL round 2.3 2013.08.18
English Opening: Agincourt Defense, Keres Defense 1/2-1/2

Sergei Ovsejevitsch vs Alexander Morozevich
URS-ch U18 Jurmala LAT 1992.??.??
King’s Indian Defense: Orthodox Variation 0-1