Christian Poulsen vs Louis Stumpers
Hoogovens Beverwijk NED round 1 1951.01.13
Sicilian Defense: Boleslavsky Variation 1-0

Theo Daniel van Scheltinga vs Louis Stumpers
NED-ch12 Leeuwarden round 3 1942.??.??
Grünfeld Defense: Flohr Defense 1-0

Louis Stumpers vs Hendrik Jan van Steenis
NED-ch prelim I Leiden NED round 4 1946.10.30
Queen’s Gambit Accepted: Classical Defense, Alekhine System 0-1

Hendrik Jan van Steenis vs Louis Stumpers
NED-ch Amsterdam NED round 8 1939.07.18
Alekhine Defense 1-0

Louis Stumpers vs Georg Kieninger
Hoogovens Beverwijk NED round 6 1951.01.18
Sicilian Defense: Four Knights Variation, Cobra Variation 1/2-1/2

Johannes Hendrik Otto van den Bosch vs Louis Stumpers
NED-ch Amsterdam NED round 5 1939.07.14
East Indian Defense 1/2-1/2

Louis Stumpers vs Henri Grob
Int B Baarn NED round 1 1947.05.09
Old Indian Defense: Normal Variation 1-0

Louis Stumpers vs Salo Landau
NED-ch Amsterdam NED round 7 1939.07.17
Tarrasch Defense: Prague Variation 0-1

Louis Stumpers vs Haije Kramer
NED-ch sf Nijmegen NED round 9 1948.11.25
Sicilian Defense: Najdorf Variation, Opocensky Variation 0-1