Jan Timman vs Michael Adams
Hoogovens Group A Wijk aan Zee NED round 12 1996.01.27
Colle System: Rhamphorhynchus Variation 1/2-1/2

Jan Timman vs Nigel Short
3rd Euwe Memorial Amsterdam NED round 4 1989.03.20
Blumenfeld Countergambit 1-0

Jan Werle vs Ruud Janssen
Corus Group C Wijk aan Zee NED round 13 2004.01.25
Colle System: Rhamphorhynchus Variation 1-0

Jan Willem te Kolste vs Carlos Torre Repetto
Baden-Baden Baden-Baden GER round 2 1925.04.17
French Defense: MacCutcheon Variation 0-1

Jan-Krzysztof Duda vs Shakhriyar Mamedyarov
Meltwater Tour Final 2021 Chess24 INT round 3.1 2021.09.27
Grünfeld Defense: Exchange Variation 1-0

Jana Schneider vs Alina Kashlinskaya
23rd European Teams Women Catez SLO round 3.1 2021.11.14
French Defense: Tarrasch Variation, Chistyakov Defense 0-1

Jani Ahvenjarvi vs Craig M Whitfield
World Youth Championship Maribor SLO round 5.35 2012.11.12
Sicilian Defense: Taimanov Variation, Bastrikov Variation 1-0

Jani Ahvenjarvi vs Vata Oltian
World Youth Championship Maribor SLO round 7.33 2012.11.14
Ruy Lopez: Morphy Defense, Anderssen Variation 1-0

Janis Fride vs Fricis Apsenieks
National Team candidates Riga LAT round 6 1940.10.27
French Defense: Diemer-Duhm Gambit 0-1

Janis Kruzkops vs Reinholds Balins
Latvian championship Riga LAT 1945.??.??
Pirc Defense: Classical Variation 1-0