Jan Plachetka vs Vlastimil Babula
Stare Mesto Stare Mesto round 5 1992.??.??
King’s Indian Defense: Orthodox Variation, Aronin-Taimanov Defense 1-0

Jan Slettebo vs Jonny Hector
Xtracon Open Helsingor DEN round 1.26 2019.07.20
Dresden Opening: The Goblin 0-1

Jan Smeets vs Vassily Ivanchuk
Amber Tournament (Blindfold) Nice FRA round 5 2010.03.18
Caro-Kann Defense: Classical Variation 1/2-1/2

Jan Smejkal vs Carlos Garcia Palermo
Szirak Szirak HUN round 3 1986.09.08
English Opening: Drill Variation 0-1

Jan Timman vs Anatoly Karpov
Karpov - Timman FIDE World Championship Match Zwolle NED round 11 1993.09.23
Queen’s Indian Defense: Buerger Variation 1/2-1/2

Jan Timman vs F van Santen
The Hague The Hague NED round 3 1967.??.??
Nimzo-Indian Defense 1-0

Jan Timman vs Ljubomir Ljubojevic
Hoogovens Wijk aan Zee NED round 11 1972.01.24
Modern Defense: Pterodactyl Variation 1-0

Jan Willem te Kolste vs Rudolf Johannes Loman
NED-ch 2nd Delft NED round 3 1912.08.07
Ruy Lopez: Classical Defense, Benelux Variation 0-1

Jan-Krzysztof Duda vs Anish Giri
Meltwater Tour Final 2021 chess24.com INT round 2.4 2021.09.26
Grünfeld Defense: Counterthrust Variation 1-0

Jan-Krzysztof Duda vs Vladislav Kovalev
European Team Championship Batumi GEO round 1.3 2019.10.24
Ruy Lopez: Closed, Breyer 1-0