James L Harkins vs Jack Witeczek
Ohio Championship Columbus, OH USA 1960.??.??
Blackburne Shilling Gambit 0-1

James Mason vs Henry William Birkmyre Gifford
Paris Paris FRA round 19 1878.07.18
Ruy Lopez: Morphy Defense, Anderssen Variation 1-0

James Moore Hanham vs Amos Burn
6th American Chess Congress New York, NY USA round 27 1889.04.27
Amazon Attack 0-1

James Rodney Phillips vs Ortvin Sarapu
67th New Zealand Championship Dunedin, New Zealand round 10 1960.??.??
English Opening: Anglo-Indian Defense, Grünfeld Formation 1/2-1/2

James Simpson vs Zsofia Polgar
Australian Open 1986/87 Adelaide AUS round 10 1987.01.08
Döry Defense 1-0

Jan Adamski vs Haji Ardiansyah
Siegen Olympiad Final-B Siegen FRG round 9 1970.09.23
Queen’s Indian Defense: Capablanca Variation 1-0

Jan Balin vs Leopold Le Ruyet
23rd Czech Open A Pardubice CZE round 2.91 2012.07.21
English Opening: Anglo-Indian Defense, Grünfeld Formation 1/2-1/2

Jan Markos vs Gianfranco Gandolfi
E.U. Championship and Cork Chess Congress Cork IRL round 1.17 2005.??.??
Queen’s Gambit Declined 1-0

Jan Michael Sprenger vs Sasa Martinovic
European Club Cup Novi Sad SRB round 4.18 2016.11.09
Sicilian Defense: Richter-Rauzer Variation, Neo-Modern Variation 1-0

Jan Plachetka vs Vladimir Bagirov
Kirovakan Kirovakan URS round 6 1978.08.??
Alekhine Defense: Modern Variation, Alekhine Variation 1/2-1/2