| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 1. Petursson vs V Gaspar |
| 1-0 | 41 | 1975 | World Junior Championship | A15 English |
| 2. Petursson vs D Bernstein |
| 0-1 | 58 | 1975 | World Junior Championship | A15 English |
| 3. Petursson vs B Kouatly |
| 0-1 | 26 | 1975 | World Junior Championship | A15 English |
| 4. Petursson vs Hodgson |
| 1-0 | 48 | 1976 | World Championship (U17) | A15 English |
| 5. Petursson vs A L A Smith |
| 1-0 | 42 | 1976 | World Junior Championship 1976/77 | A15 English |
| 6. Petursson vs J O Fries-Nielsen |
| 0-1 | 40 | 1978 | World Junior Championship | A15 English |
| 7. Petursson vs S Belkhodja |
| ½-½ | 69 | 1984 | Thessaloniki Olympiad | A15 English |
| 8. Petursson vs P Buerki |
| 1-0 | 32 | 1992 | San Bernardino op | A15 English |
Kibitzing
