Jon Loftur Arnason vs Josef Pribyl
Jurmala Jurmala URS round 8 1987.09.??
Czech Defense 1-0

Jon Loftur Arnason vs Karl Thorsteins
Akureyri Akureyri ISL round 2 1988.03.10
Caro-Kann Defense: Karpov Variation 0-1

Yasser Seirawan vs Jon Loftur Arnason
Moscow GMA-qual f Moscow URS round 3 1990.05.??
English Opening: Symmetrical Variation, Botvinnik System 1/2-1/2

Jon Loftur Arnason vs Helgi Olafsson
Reykjavik Reykjavik ISL round 10 1992.03.12
Sicilian Defense: Scheveningen Variation 1/2-1/2

Jon Loftur Arnason vs Jan Smejkal
Reykjavik Reykjavik ISL round 3 1978.02.06
Modern Defense 1/2-1/2

Luis A Baquero vs Jon Loftur Arnason
Chess Olympiad Thessaloniki GRE round 11 1988.11.25
Bogo-Indian Defense 0-1

Nigel Short vs Jon Loftur Arnason
Vestmannaeyjar Vestmannaeyjar ISL round 5 1985.06.02
Sicilian Defense: Najdorf Variation 0-1

Jon Loftur Arnason vs Loek van Wely
European Team Championship Reykjavik ISL round 1.35 2015.11.13
Sicilian Defense: Najdorf Variation, Scheveningen Variation 0-1

Jon Loftur Arnason vs Karel Mokry
EU-ch 7778 U20 Groningen NED round 6 1977.12.27
Sicilian Defense: Canal Attack, Dorfman Gambit 1-0

Jon Loftur Arnason vs Artur Jakubiec
TCh-ISL Div 1 -17 Reykjavik ISL round 5.2 2016.10.02
Caro-Kann Defense: Euwe Attack, Prins Gambit 1/2-1/2