Donald J Mason vs Richard G Pert
British Championship Coventry ENG round 6.6 2015.07.31
Catalan Opening: Open Defense 0-1

Donald J Mason vs Laurence Ball
British Championship Torquay ENG round 8 2013.08.05
Czech Defense 1-0

Richard J Palliser vs Donald J Mason
British Championship North Shields ENG round 1.8 2012.07.23
Grünfeld Defense: Exchange Variation 1/2-1/2