Sipke Ernst vs Manuel Bosboom
NED-ch sf Enschede round 2 1995.??.??
Sicilian Defense: Chekhover Variation 1-0

Daan Zult vs Sipke Ernst
Hengelo op U14 Hengelo round 6 1993.??.??
Semi-Slav Defense: Meran Variation 1-0

Sipke Ernst vs Andreas Bachofner
Lost Boys Open Amsterdam NED round 6 2001.08.16
French Defense 1-0

Van den Doel, Erik vs Sipke Ernst
NED-ch U18 Nijmegen 1992.??.??
French Defense: Classical Variation, Svenonius Variation 1/2-1/2

Ruud Janssen vs Sipke Ernst
NED-ch sf Enschede round 3 1998.01.05
English Opening: King’s English Variation 0-1

Sipke Ernst vs Jaap Amesz
NED-ch U20 Leiden round 1 1999.05.03
Catalan Opening: Closed 1/2-1/2

John van der Wiel vs Sipke Ernst
Harmonie Groningen NED round 4 2004.12.24
Italian Game: Two Knights Defense 1-0

Migchiel de Jong vs Sipke Ernst
Unive Open Hoogeveen NED round 8.8 2013.10.25
Ruy Lopez: Bird’s Defense Deferred 0-1

Sipke Ernst vs Alejandro Ramirez Alvarez
Corus Group B Wijk aan Zee NED round 11 2005.01.28
Slav Defense: Alekhine Variation 1-0

Ruud Janssen vs Sipke Ernst
Hengelo U20 Hengelo round 6 1996.??.??
English Opening: Anglo-Grünfeld Defense 1-0