| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. D Coleman vs J Vidarsson |
| 1-0 | 32 |
1988 |
Lodz | C44 King's Pawn Game |
| 2. J Vidarsson vs Adorjan |
| ½-½ | 19 |
1988 |
It (cat.10) | B10 Caro-Kann |
| 3. Zsuzsa Polgar vs J Vidarsson |
| 1-0 | 64 |
1988 |
Reykjavik op | A46 Queen's Pawn Game |
| 4. Polugaevsky vs J Vidarsson |
| 1-0 | 45 |
1988 |
Reykjavik open | D37 Queen's Gambit Declined |
| 5. J Vidarsson vs Polugaevsky |
| 0-1 | 34 |
1988 |
Akureyri | B93 Sicilian, Najdorf, 6.f4 |
| 6. Christiansen vs J Vidarsson |
| 0-1 | 75 |
1988 |
It (open) | E11 Bogo-Indian Defense |
| 7. Kamsky vs J Vidarsson |
 | 1-0 | 26 |
1990 |
Reykjavik | E11 Bogo-Indian Defense |
| 8. J Vidarsson vs Petursson |
| 0-1 | 62 |
1990 |
Reykjavik | B06 Robatsch |
| 9. Svidler vs J Vidarsson |
| ½-½ | 20 |
1992 |
Gausdal | B30 Sicilian |
| 10. J Vidarsson vs Jansa |
| 0-1 | 25 |
1992 |
Gausdal Peer Gynt | B40 Sicilian |
| 11. Jansa vs J Vidarsson |
| 1-0 | 39 |
1992 |
Gausdal International | B62 Sicilian, Richter-Rauzer |
| 12. J Vidarsson vs Shabalov |
| ½-½ | 56 |
1994 |
It (open) | B05 Alekhine's Defense, Modern |
| 13. Petursson vs J Vidarsson |
| 1-0 | 31 |
1996 |
XVII Reykjavik International Reykjavik ISL (3 | A29 English, Four Knights, Kingside Fianchetto |
| 14. Petursson vs J Vidarsson |
| 1-0 | 70 |
1996 |
ch-ICE Gardabaer | A21 English |
| 15. Hector vs J Vidarsson |
 | 1-0 | 9 |
1996 |
It (open) | B43 Sicilian, Kan, 5.Nc3 |
| 16. Gulko vs J Vidarsson |
| 1-0 | 47 |
1996 |
It (open) | A30 English, Symmetrical |
| 17. Sadvakasov vs J Vidarsson |
 | ½-½ | 29 |
1998 |
Elista ol (Men) | B40 Sicilian |
| 18. Hjartarson vs J Vidarsson |
| 1-0 | 26 |
1999 |
Icelandic Teams | E43 Nimzo-Indian, Fischer Variation |
| 19. J Vidarsson vs Stefansson |
| ½-½ | 25 |
1999 |
Icelandic Teams | C86 Ruy Lopez, Worrall Attack |
| 20. A Hauchard vs J Vidarsson |
| 1-0 | 55 |
2000 |
34th Olympiad | A15 English |
| 21. J Vidarsson vs T Thorhallsson |
| 0-1 | 30 |
2001 |
ch-ISL | C02 French, Advance |
| 22. J Vidarsson vs L Ptacnikova |
| 1-0 | 32 |
2001 |
ch-ISL | B31 Sicilian, Rossolimo Variation |
| 23. A Gunnarsson vs J Vidarsson |
| 0-1 | 26 |
2001 |
ch-ISL | A47 Queen's Indian |
| 24. J Gunnarsson vs J Vidarsson |
| ½-½ | 16 |
2001 |
ch-ISL | B00 Uncommon King's Pawn Opening |
| 25. J Vidarsson vs Stefansson |
| ½-½ | 30 |
2001 |
ch-ISL | A04 Reti Opening |