Jonathan D Sarfati vs Paul B Tuffery
NZL-ch New Zealand 1995.??.??
Grünfeld Defense: Three Knights Variation, Petrosian System 1/2-1/2

Jonathan James Ady vs Jonathan Speelman
BCF-ch Morecambe ENG round 3 1981.08.05
Caro-Kann Defense 1/2-1/2

Jonathan Levitt vs Viswanathan Anand
Match London ENG round 1 1987.??.??
Nimzo-Indian Defense: Three Knights Variation, Duchamp Variation 1/2-1/2

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

Jonathan Rowson vs Michael Adams
Match London (England) round 3 1998.??.??
Ruy Lopez: Brix Variation 0-1

Jonathan Speelman vs Garry Kasparov
Reykjavik World Cup Reykjavik ISL round 3 1988.10.05
Indian Defense: Przepiorka Variation 1/2-1/2

Jonathan Speelman vs Margeir Petursson
Reykjavik World Cup Reykjavik ISL round 15 1988.10.21
English Opening: King’s English Variation, Four Knights Variation, Fianchetto Line 1/2-1/2

Jonny Hector vs Peter Heine Nielsen
SIS-MH Masters Middelfart DEN round 2 2003.04.05
King’s Gambit Accepted: Allgaier Gambit 0-1

Jorge Alberto Rubinetti vs Gustavo Albarran
79th Argentine Championship Buenos Aires ARG round 4.14 2004.09.26
Colle System: Rhamphorhynchus Variation 1-0

Jorge Luis Pelaez Contti vs Jose Luis Vilela de Acuna
Olympiad Buenos Aires ARG round 1 1978.10.25
Colle System: Rhamphorhynchus Variation 0-1