| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. Yurtaev vs O Dannevig |
| 0-1 | 38 |
1990 |
Gausdal (Norway) | B10 Caro-Kann |
| 2. O Dannevig vs Storland Knut H (NOR) |
| 1-0 | 32 |
1999 |
Ch Norway, Gausdal (Norway) | B06 Robatsch |
| 3. K Lie vs O Dannevig |
| 0-1 | 39 |
1999 |
Ch Norway, Gausdal (Norway) | B70 Sicilian, Dragon Variation |
| 4. O Dannevig vs O Hole |
| 1-0 | 20 |
1999 |
Ch Norway, Gausdal (Norway) | A07 King's Indian Attack |
| 5. O Dannevig vs A Flaata |
| 1-0 | 26 |
1999 |
Stjernen Grand Prix | A07 King's Indian Attack |
| 6. O Dannevig vs F Elsness |
| 1-0 | 55 |
1999 |
Ch Norway, Gausdal (Norway) | A05 Reti Opening |
| 7. O Dannevig vs R Myhrvold |
| 1-0 | 31 |
1999 |
Ch Norway, Gausdal (Norway) | A07 King's Indian Attack |
| 8. O Dannevig vs T Spanton |
| 1-0 | 66 |
2000 |
open | A13 English |
| 9. E Hagesaether vs O Dannevig |
| 0-1 | 58 |
2000 |
open | A04 Reti Opening |
| 10. O Valaker vs O Dannevig |
| 0-1 | 25 |
2000 |
open | A48 King's Indian |
| 11. G Borresen vs O Dannevig |
 | 0-1 | 40 |
2001 |
ch-NOR | B76 Sicilian, Dragon, Yugoslav Attack |
| 12. O Dannevig vs O Hole |
| 1-0 | 39 |
2001 |
ch-NOR | A11 English, Caro-Kann Defensive System |
| 13. O Dannevig vs T Hansen |
| 1-0 | 27 |
2001 |
ch-NOR | A20 English |
| 14. O Dannevig vs O Hole |
| 1-0 | 38 |
2004 |
Norwegian Championship | B19 Caro-Kann, Classical |
| 15. O Dannevig vs L Breivik |
| 1-0 | 52 |
2004 |
Norwegian Championship | B04 Alekhine's Defense, Modern |
| 16. J Jansson vs O Dannevig |
| 0-1 | 81 |
2004 |
Norwegian Championship | A46 Queen's Pawn Game |
| 17. O Dannevig vs J Jansson |
| 1-0 | 40 |
2005 |
Norwegian Championship | C88 Ruy Lopez |
| 18. O Dannevig vs S Bjerke |
| 1-0 | 104 |
2005 |
Norwegian Championship | B52 Sicilian, Canal-Sokolsky (Rossolimo) Attack |
| 19. C F Ekeberg vs O Dannevig |
| 0-1 | 26 |
2005 |
Norwegian Championship | A64 Benoni, Fianchetto, 11...Re8 |
| 20. K Stokke vs O Dannevig |
| 0-1 | 40 |
2006 |
Norwegian Championship | C45 Scotch Game |
| 21. O Dannevig vs J Jansson |
| 1-0 | 38 |
2006 |
Norwegian Championship | C88 Ruy Lopez |