Jonathan Penrose vs Manuel Aaron
Hastings 1961/62 Hastings ENG round 7 1962.01.03
Sicilian Defense: Scheveningen Variation, Classical Variation 1-0

Sieghart Dittmann vs Jonathan Penrose
13th olm qual. group 3 Munich FRG round 8 1958.10.08
Modern Defense: Averbakh System 1/2-1/2

Terrey Ian Shaw vs Jonathan Penrose
Nice Olympiad qual-2 Nice FRA round 1 1974.06.07
Sicilian Defense: Closed 1/2-1/2

Jonathan Penrose vs Wolfgang Pietzsch
Madrid Zonal Madrid ESP round 3 1960.05.19
French Defense: Tarrasch Variation, Botvinnik Variation 1-0

F Norman Stephenson vs Jonathan Penrose
BCF-ch Bristol ENG round 1 1968.08.05
East Indian Defense 0-1

Josef Pribyl vs Jonathan Penrose
Olympiad Final-A Nice FRA round 10 1974.06.24
London System: Poisoned Pawn Variation 1-0

Jonathan Penrose vs Raymond Keene
BCF-ch Bristol ENG round 5 1968.08.09
French Defense: Tarrasch Variation, Open System, Main Line 1/2-1/2

Mikhail Botvinnik vs Jonathan Penrose
Hastings 1961/62 Hastings ENG round 6 1962.01.02
King’s Indian Defense: Sämisch Variation, Closed Variation, Main Line 1-0

Veitch vs Jonathan Penrose
British Championship Buxton ENG round 10 1950.08.31
Blumenfeld Countergambit 0-1

Jonathan Penrose vs Wilfred Attard
Madrid Zonal Madrid ESP round 7 1960.05.27
Benoni Defense: Classical Variation, Main Line 1-0