| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 1. J Zachariassen vs C Rasmussen |
| 0-1 | 25 | 2001 | Politiken Cup | A02 Bird's Opening |
| 2. N P Schoenberg vs J Zachariassen |
| 0-1 | 28 | 2001 | Politiken Cup | A45 Queen's Pawn Game |
| 3. J Zachariassen vs Bo Rasmussen |
| 0-1 | 15 | 2001 | Politiken Cup | A01 Nimzovich-Larsen Attack |
| 4. A Paaske vs J Zachariassen |
| 1-0 | 37 | 2001 | Politiken Cup | B01 Scandinavian |
| 5. J Zachariassen vs S Radovic |
| 1-0 | 33 | 2001 | Politiken Cup | A07 King's Indian Attack |
| 6. A Schmied vs J Zachariassen |
| 0-1 | 26 | 2001 | Politiken Cup | E97 King's Indian |
| 7. J Zachariassen vs A Bering |
| 0-1 | 25 | 2001 | Politiken Cup | A07 King's Indian Attack |
| 8. J H Nielsen vs J Zachariassen |
| 1-0 | 60 | 2001 | Politiken Cup | D00 Queen's Pawn Game |
| 9. J Zachariassen vs O E Jorgensen |
| 1-0 | 56 | 2001 | Politiken Cup | B00 Uncommon King's Pawn Opening |
| 10. H Rasmussen vs J Zachariassen |
| 1-0 | 52 | 2001 | Politiken Cup | E73 King's Indian |
| 11. J Zachariassen vs J Wilsbeck |
| 0-1 | 42 | 2001 | Politiken Cup | A08 King's Indian Attack |
| 12. J Rendboe vs J Zachariassen |
| 1-0 | 32 | 2003 | Politiken Cup | A40 Queen's Pawn Game |
| 13. J Zachariassen vs E Knudsen |
| 1-0 | 28 | 2003 | Politiken Cup | A11 English, Caro-Kann Defensive System |
| 14. P Auchenberg vs J Zachariassen |
| 1-0 | 53 | 2003 | Politiken Cup | A42 Modern Defense, Averbakh System |
| 15. J Aabling-Thomsen vs J Zachariassen |
| 1-0 | 40 | 2003 | Politiken Cup | B01 Scandinavian |
| 16. J Zachariassen vs J Jensen |
| 1-0 | 15 | 2003 | Politiken Cup | A00 Uncommon Opening |
| 17. J Zachariassen vs C Christensen |
| 0-1 | 26 | 2003 | Politiken Cup | A22 English |
| 18. E Auchenberg vs J Zachariassen |
| ½-½ | 52 | 2003 | Politiken Cup | B06 Robatsch |
| 19. J Zachariassen vs M Frank-Nielsen |
| 0-1 | 20 | 2003 | Politiken Cup | A10 English |
| 20. S Radovic vs J Zachariassen |
| 0-1 | 45 | 2003 | Politiken Cup | B01 Scandinavian |
| 21. J Zachariassen vs J Svanholm Fogh |
| 1-0 | 56 | 2003 | Politiken Cup | A07 King's Indian Attack |
| 22. R R Hansen vs J Zachariassen |
| ½-½ | 31 | 2003 | Politiken Cup | E63 King's Indian, Fianchetto, Panno Variation |
| 23. J Zachariassen vs A Rosenkilde |
 | 1-0 | 29 | 2006 | Politiken Cup | B20 Sicilian |
| 24. J Zachariassen vs J Schultz-Pedersen |
| 0-1 | 38 | 2006 | Politiken Cup | A25 English |
| 25. T Thingstad vs J Zachariassen |
| 0-1 | 45 | 2006 | Politiken Cup | A10 English |
Kibitzing
