| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. B Nielsen vs P Auchenberg |
| ½-½ | 28 |
2000 |
Politiken Cup | A56 Benoni Defense |
| 2. L Laustsen vs B Nielsen |
| 0-1 | 31 |
2000 |
Politiken Cup | D20 Queen's Gambit Accepted |
| 3. C Grubert vs B Nielsen |
| 1-0 | 45 |
2000 |
Politiken Cup | B12 Caro-Kann Defense |
| 4. B Nielsen vs A B Jorgensen |
| 1-0 | 47 |
2000 |
Politiken Cup | A56 Benoni Defense |
| 5. S B Jensen vs B Nielsen |
| 1-0 | 34 |
2001 |
Politiken Cup | D60 Queen's Gambit Declined, Orthodox Defense |
| 6. B Nielsen vs Hoi |
| 0-1 | 22 |
2001 |
Politiken Cup | A40 Queen's Pawn Game |
| 7. B Nielsen vs M Westlund |
| ½-½ | 55 |
2001 |
Politiken Cup | D79 Neo-Grunfeld, 6.O-O, Main line |
| 8. B Nielsen vs H Rasmussen |
| 1-0 | 40 |
2001 |
Politiken Cup | D21 Queen's Gambit Accepted |
| 9. R McShane vs B Nielsen |
| 0-1 | 43 |
2001 |
Politiken Cup | B90 Sicilian, Najdorf |
| 10. B Brinck-Claussen vs B Nielsen |
| 1-0 | 26 |
2001 |
Politiken Cup | B14 Caro-Kann, Panov-Botvinnik Attack |
| 11. C von Holstein-Rathlau vs B Nielsen |
| ½-½ | 28 |
2001 |
Politiken Cup | D60 Queen's Gambit Declined, Orthodox Defense |
| 12. J Sylvan vs B Nielsen |
| ½-½ | 59 |
2001 |
Politiken Cup | B12 Caro-Kann Defense |
| 13. B Nielsen vs H Nielsen |
| ½-½ | 47 |
2001 |
Politiken Cup | D74 Neo-Grunfeld, 6.cd Nxd5, 7.O-O |
| 14. B Nielsen vs T Van Dijk |
| 1-0 | 27 |
2001 |
Politiken Cup | D10 Queen's Gambit Declined Slav |
| 15. P Auchenberg vs B Nielsen |
| ½-½ | 12 |
2001 |
Politiken Cup | A02 Bird's Opening |
| 16. S Brynell vs B Nielsen |
| 1-0 | 33 |
2006 |
Politiken Cup | B14 Caro-Kann, Panov-Botvinnik Attack |
| 17. J G Pettersen vs B Nielsen |
 | 1-0 | 28 |
2006 |
Politiken Cup | B12 Caro-Kann Defense |
| 18. D Jorgensen vs B Nielsen |
| 1-0 | 49 |
2007 |
Politiken Cup | D37 Queen's Gambit Declined |
| 19. L Olsson vs B Nielsen |
| 1-0 | 49 |
2007 |
Politiken Cup | E05 Catalan, Open, Classical line |
| 20. B Nielsen vs J Almer |
| 1-0 | 48 |
2007 |
Politiken Cup | A40 Queen's Pawn Game |
| 21. M Karttunen vs B Nielsen |
| 1-0 | 33 |
2007 |
Politiken Cup | D31 Queen's Gambit Declined |
| 22. B Nielsen vs J Carlstedt |
| 0-1 | 25 |
2009 |
Politiken Cup | A65 Benoni, 6.e4 |
| 23. B Nielsen vs J Nilsen |
| 0-1 | 39 |
2012 |
Politiken Cup | E11 Bogo-Indian Defense |
| 24. P B Petersen vs B Nielsen |
| ½-½ | 25 |
2012 |
Politiken Cup | B14 Caro-Kann, Panov-Botvinnik Attack |
| 25. B Nielsen vs M Colpe |
| 0-1 | 49 |
2012 |
Politiken Cup | D76 Neo-Grunfeld, 6.cd Nxd5, 7.O-O Nb6 |