Chris de Ronde vs Paul Tautvaisas
Buenos Aires Olympiad prel-C Buenos Aires ARG round 3 1939.08.26
English Opening: Carls-Bremen System 1-0

Chris de Ronde vs Moshe Czerniak
Buenos Aires Circulo Buenos Aires ARG round 12 1945.05.26
English Opening: Symmetrical Variation, Anti-Benoni Variation, Geller Variation 0-1

Zelman Kleinstein vs Chris de Ronde
Buenos Aires Olympiad fin-A Buenos Aires ARG round 8 1939.09.09
Grünfeld Defense: Three Knights Variation, Petrosian System 0-1

Chris de Ronde vs Paul Tautvaisas
Buenos Aires Olympiad fin-A Buenos Aires ARG round 12 1939.09.14
English Opening: Anglo-Indian Defense, Flohr-Mikenas-Carls Variation, Nei Gambit 1/2-1/2

Hendrik Jan van Steenis vs Chris de Ronde
NED-ch Amsterdam NED round 4 1939.07.13
Sicilian Defense: Richter-Rauzer Variation, Classical Variation 1-0