Harold James Plaskett vs Marek Hawelko
EU-ch U20 7879 Groningen NED round 12 1979.01.04
Modern Defense 1-0

Harold James Plaskett vs John Emms
Hastings 1998/99 Hastings ENG round 2 1998.12.30
Döry Defense 1/2-1/2

Harold James Plaskett vs Magnus Carlsen
VII Dos Hermanas Qualifier S20A ICC Internet round 9 2006.03.20
Döry Defense 0-1

Harold James Plaskett vs Mark Hebden
11th Lloyds Bank Masters Open London ENG round 10 1987.08.??
Amazon Attack: Siberian Attack 1-0

Harold James Plaskett vs Edgar Anbuhl
Politiken Cup Copenhagen DEN round 4 1981.06.23
Döry Defense 1-0

Harold James Plaskett vs William Nicholas Watson
Computer Games Ltd Brighton Grandmaster Tt Brighton, England 1983.??.??
Sicilian Defense: Dragon Variation, Yugoslav Attack 0-1

Harold James Plaskett vs Stuart C Conquest
Reykjavik Reykjavik ISL round 7 1992.03.08
Blackmar-Diemer Gambit: Netherlands Variation 0-1

John Nunn vs Harold James Plaskett
GLC Chess Challenge London ENG round 3 1986.03.13
Russian Game 1-0

Harold James Plaskett vs John Eric Littlewood
BCF-ch Ayr SCO round 5 1978.08.11
Ruy Lopez: Berlin Defense 0-1

Harold James Plaskett vs Nigel Short
Plovdiv Plovdiv BUL round 2 1984.06.??
Nimzo-Indian Defense: Three Knights Variation, Duchamp Variation 1-0