Jonathan Penrose vs Arthur Bisguier
13th olm final A Munich FRG round 4 1958.10.14
Sicilian Defense: Najdorf Variation, Amsterdam Variation 0-1

Jonathan Penrose vs Max Blau
Hastings 1952/53 Hastings ENG round 5 1953.01.03
Ruy Lopez: Brix Variation 1-0

Paul Keres vs Jonathan Penrose
Hastings 1957/58 Hastings ENG round 4 1957.12.31
Philidor Defense 1-0

Jonathan Penrose vs Luben S Popov
Enschede Zonal Enschede NED round 3 1963.10.07
Sicilian Defense: O’Kelly Variation 1-0

Jonathan Penrose vs Andrija Fuderer
GBR-YUG London ENG 1951.09.??
Sicilian Defense: Scheveningen Variation, Classical Variation 0-1

Jonathan Penrose vs L Derby
Southsea Southsea ENG round 1 1950.04.12
French Defense: MacCutcheon Variation, Wolf Gambit 1/2-1/2

Robert Bellin vs Jonathan Penrose
BCF-ch Clacton-on-Sea ENG round 1 1974.08.05
Amazon Attack 1-0

Jonathan Penrose vs Christian Poulsen
Helsinki ol (Men) fin-B Helsinki FIN round 1 1952.08.21
Caro-Kann Defense: Euwe Attack, Prins Gambit 1/2-1/2

Jonathan Penrose vs Leonard William Barden
Hastings 1950/51 Hastings ENG round 4 1951.01.01
Sicilian Defense: Boleslavsky Variation 1/2-1/2

Jonathan Penrose vs Viktor Korchnoi
Hastings 1955/56 Hastings ENG round 3 1955.12.30
Sicilian Defense: Sozin Attack, Fischer Variation 0-1