Luben Popov vs Javier Alzate
Siegen Olympiad qual-6 Siegen FRG round 1 1970.09.05
King’s Indian Defense: Averbakh Variation 1/2-1/2

Javier Alzate vs Karl Roehrl
Siegen Olympiad qual-6 Siegen FRG round 5 1970.09.09
Sicilian Defense: Sozin Attack 0-1

Javier Alzate vs Cecil John Purdy
Siegen ol (Men) fin-B Siegen FRG round 2 1970.09.15
Nimzo-Indian Defense 1-0

Javier Alzate vs Anton Kinzel
Havana ol (Men) fin-B Havana CUB round 3 1966.11.06
Neo-Grünfeld Defense: Classical Variation, Original Defense 1/2-1/2

Javier Alzate vs Heikki Westerinen
Havana ol (Men) qual-G Havana CUB round 3 1966.10.28
King’s Indian Defense: Fianchetto Variation, Delayed Fianchetto 1-0

Javier Alzate vs Jerzy Kostro
Nice Olympiad Final-B Nice FRA round 4 1974.06.18
Caro-Kann Defense: Karpov Variation 0-1