Manuel Abarca Aguirre vs Julio Ernesto Granda Zuniga
Villa Gesell tt Villa Gesell round 1 1985.??.??
Nimzo-Indian Defense: Three Knights Variation, Duchamp Variation 0-1

Manuel Abarca Aguirre vs Ron Buckmire
Wch U20 Kiljava FIN round 7 1984.08.10
Benko Gambit 1-0

Romelio Chavez Chavez vs Manuel Abarca Aguirre
Corrientes zt Corrientes ARG round 2 1985.02.??
Sicilian Defense: Classical Variation 0-1

Sergio Macagno vs Manuel Abarca Aguirre
Pan American-ch U20 Buenos Aires round 4 1982.??.??
Sicilian Defense: Richter-Rauzer Variation, Neo-Modern Variation 0-1

Manuel Abarca Aguirre vs Bernardo Moran Nuque
Pan American-ch U20 Buenos Aires round 11 1982.??.??
Nimzo-Indian Defense: Three Knights Variation, Duchamp Variation 1-0

Manuel Abarca Aguirre vs Atanas Kolev
Wch U20 Kiljava FIN round 4 1984.08.06
Nimzo-Indian Defense: Three Knights Variation, Duchamp Variation 1-0

Manuel Abarca Aguirre vs Ivan Eduardo Morovic-Fernandez
Corrientes zt Corrientes ARG round 3 1985.02.??
Old Indian Defense: Dus-Khotimirsky Variation 0-1

Manuel Abarca Aguirre vs Julio Ernesto Granda Zuniga
Pan American-ch U20 Buenos Aires ARG round 3 1982.??.??
Semi-Slav Defense: Meran Variation 0-1

Ventzislav V Inkiov vs Manuel Abarca Aguirre
Chess Olympiad Lucerne SUI round 6 1982.11.05
Queen’s Gambit Declined: Tarrasch Defense, Stoltz Variation 1/2-1/2

Manuel Abarca Aguirre vs Colm Barry
Chess Olympiad Lucerne SUI round 4 1982.11.02
Queen’s Gambit Declined: Anti-Tartakower Variation 1-0