Jan Hein Donner vs Borislav Ivkov
Club Argentino Buenos Aires ARG round 10 1955.04.??
King’s Indian Defense: Sämisch Variation 1/2-1/2

Jan Hein Donner vs Jacob Kort
Noteboom Memorial Noordwijk NED round 5 1965.02.26
King’s Indian Defense: Fianchetto Variation, Delayed Fianchetto 1-0

Jan Markos vs Damion Davy
Chess Olympiad Tromso NOR round 1.35 2014.08.02
Bogo-Indian Defense 1/2-1/2

Jan Michael Sprenger vs Alexander Rustemov
Bundesliga 0506 Germany round 4.3 2005.11.13
Nimzo-Indian Defense: Normal Variation, Gligoric System, Exchange at c4 0-1

Jan Smeets vs Alexey Shirov
Tata Steel Group A Wijk aan Zee NED round 1 2011.01.15
Ruy Lopez: Brix Variation 1-0

Jan Smeets vs Ioan Rees
Glorney Cup Hyerois FRA round 1 2001.07.08
Sicilian Defense: Dragon Variation, Yugoslav Attack, Belezky Line 1-0

Jan Timman vs Anatoly Karpov
Karpov - Timman FIDE World Championship Match Zwolle NED round 7 1993.09.17
Caro-Kann Defense: Karpov Variation 1/2-1/2

Jan Timman vs Anatoly Karpov
Karpov - Timman FIDE World Championship Match Zwolle NED round 9 1993.09.20
Döry Defense 1/2-1/2

Jan Timman vs Anatoly Karpov
Las Palmas Las Palmas ESP round 7 1977.05.16
English Opening: Anglo-Indian Defense, Flohr-Mikenas-Carls Variation, Nei Gambit 1/2-1/2

Jan Timman vs Kiril Dimitrov Georgiev
Linares Linares ESP round 1 1988.02.23
Nimzo-Indian Defense: Hübner Variation 1-0