Gudmundur Agustsson vs Theo Daniel van Scheltinga
Amsterdam ol (Men) qual-A Amsterdam NED round 1 1954.09.04
English Opening: Anglo-Indian Defense, Grünfeld Formation 1/2-1/2

Theo Daniel van Scheltinga vs Karel Opocensky
Buenos Aires Olympiad fin-A Buenos Aires ARG round 13 1939.09.15
King’s Indian Defense 0-1

Baldur Moller vs Theo Daniel van Scheltinga
Buenos Aires Olympiad prel-C Buenos Aires ARG round 1 1939.08.24
Nimzo-Indian Defense: Spielmann Variation 1/2-1/2

Theo Daniel van Scheltinga vs Svetozar Gligoric
YUG-NED Belgrade YUG round 1 1949.??.??
Nimzo-Indian Defense: Classical Variation, Berlin Variation, Macieja System 0-1

Esteban Canal vs Theo Daniel van Scheltinga
Venice Venice ITA round 2 1953.10.??
Sicilian Defense: Alapin Variation 1/2-1/2

Haije Kramer vs Theo Daniel van Scheltinga
NED-ch Amsterdam NED round 2 1950.07.18
Caro-Kann Defense: Classical Variation 1/2-1/2

John W Collins vs Theo Daniel van Scheltinga
1st World Correspondence Chess Championship corr 1950.05.01
Semi-Slav Defense: Bogoljubov Variation 1/2-1/2

Salo Landau vs Theo Daniel van Scheltinga
Match Amsterdam NED round 2 1939.11.30
Nimzo-Indian Defense: Sämisch Variation 0-1

Theo Daniel van Scheltinga vs Samuel Reshevsky
Amsterdam Amsterdam NED round 14 1950.11.29
Nimzo-Indian Defense: Classical Variation, Milner-Barry Variation 0-1

Bent Larsen vs Theo Daniel van Scheltinga
Hoogovens Beverwijk NED round 8 1964.01.17
Bird Opening 1-0