| Game | Result | Moves | Year | Event | ECO | Opening | |
|---|---|---|---|---|---|---|---|
| Ulf Andersson vs Gudmundur Sigurjonsson | ½-½ | 14 | 1975 | Capablanca mem | A36 | English Symmetrical variation |  Browse |
| Gudmundur Sigurjonsson vs Arthur Bisguier | ½-½ | 25 | 1975 | Hastings7576 | C60 | Ruy Lopez Fianchetto (Smyslov/Barnes) d... | Browse |
| Walter Browne vs Gudmundur Sigurjonsson | 1-0 | 92 | 1975 | Lone Pine | B42 | Dunst (Sleipner, Heinrichsen) Opening | Browse |
| Gudmundur Sigurjonsson vs Larry D Evans | ½-½ | 25 | 1975 | Lone Pine | B93 | Sicilian Najdorf, 6.f4 | Browse |
| Gudmundur Sigurjonsson vs Svetozar Gligoric | 1-0 | 47 | 1975 | Lone Pine | B90 | Sicilian | Browse |
| Gudmundur Sigurjonsson vs Anthony J Miles | ½-½ | 146 | 1975 | Hastings7576 | B70 | Sicilian Dragon variation | Browse |
| Gudmundur Sigurjonsson vs Anthony J Miles | 0-1 | 44 | 1975 | London | B30 | Sicilian Nimzovich-Rossolimo attack (wi... | Browse |
| John Nunn vs Gudmundur Sigurjonsson | 1-0 | 26 | 1975 | London | B43 | Sicilian Kan, 5.Nc3 | Browse |
| Gudmundur Sigurjonsson vs Oscar Panno | 1-0 | 43 | 1975 | Lone Pine | B85 | Sicilian Scheveningen, 6.Be2 | Browse |
| Gudmundur Sigurjonsson vs Jan Timman | 0-1 | 38 | 1975 | London | C06 | Reti Opening | Browse |
