Alexander Onischuk vs Magnus Carlsen
Biel Blitz Playoff Biel SUI round 5 2007.08.02
Nimzo-Indian Defense 0-1

Alexander Onischuk vs Valery Salov
President’s Cup Elista RUS round 1.1 1998.05.07
Sicilian Defense: Taimanov Variation, Bastrikov Variation 0-1

Alexander Onischuk vs Vladimir Borisovich Tukmakov
Biel SKA Biel SUI round 3 1996.07.24
Sicilian Defense: Classical Variation, Anti-Sozin Variation 1/2-1/2

Sergei Vladimirovich Rublevsky vs Alexander Onischuk
Karpov Poikovsky Poikovsky RUS round 1 2005.02.26
Scotch Game 1/2-1/2

Alexander Onischuk vs Zsuzsa Polgar
Mayor’s Cup Invitational New York USA round 9 2006.06.26
Queen’s Gambit Accepted 1/2-1/2

Vadim Markovich Milov vs Alexander Onischuk
Biel SKA Biel SUI round 6 1996.07.28
Nimzo-Indian Defense: Hübner Variation 1/2-1/2

Wesley So vs Alexander Onischuk
US Championship St Louis, MO USA round 3 2017.04.01
English Opening: Agincourt Defense, Keres Defense 1-0

Lev Milman vs Alexander Onischuk
Chessmaster US Championship 2005 San Diego, CA USA round 1 2004.11.24
Ruy Lopez: Closed, Bogoljubov Variation 0-1

Alexander Onischuk vs Griffin Gibson
US Open Ft. Lauderdale, FL USA round 2 2004.08.08
Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation 1-0

Alexander Onischuk vs Rustam Mashrukovich Kasimdzhanov
FIDE Moscow Gran Prix Moscow RUS round 3.4 2002.06.03
Nimzo-Indian Defense: Normal Variation, Schlechter Defense 0-1