| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. H Lahlum vs G Tallaksen |
| ½-½ | 45 |
2000 |
open | E07 Catalan, Closed |
| 2. M Sagafos vs H Lahlum |
| ½-½ | 36 |
2000 |
open | C02 French, Advance |
| 3. H Lahlum vs M Haag |
| ½-½ | 34 |
2000 |
open | D34 Queen's Gambit Declined, Tarrasch |
| 4. H Lahlum vs E Brekken |
| ½-½ | 21 |
2000 |
open | D45 Queen's Gambit Declined Semi-Slav |
| 5. G Hitzgerova vs H Lahlum |
| ½-½ | 68 |
2001 |
Classics IMA | C02 French, Advance |
| 6. G Tallaksen vs H Lahlum |
| ½-½ | 9 |
2001 |
ch-NOR | D10 Queen's Gambit Declined Slav |
| 7. H Lahlum vs E Hermansson |
| ½-½ | 35 |
2001 |
Classics IMA | E81 King's Indian, Samisch |
| 8. H Lahlum vs T Robertsen |
| ½-½ | 31 |
2001 |
TCh-NOR Final | A60 Benoni Defense |
| 9. H Reddmann vs H Lahlum |
| ½-½ | 17 |
2001 |
6th Wichern Open | D00 Queen's Pawn Game |
| 10. K Trygstad vs H Lahlum |
| ½-½ | 29 |
2001 |
TCh-NOR Final | C02 French, Advance |
| 11. H Lahlum vs O Hole |
| ½-½ | 44 |
2001 |
Classics IMA | D47 Queen's Gambit Declined Semi-Slav |
| 12. M Ewaldt vs H Lahlum |
| ½-½ | 21 |
2001 |
6th Wichern Open | A01 Nimzovich-Larsen Attack |
| 13. H Lahlum vs E Gullaksen |
| ½-½ | 36 |
2001 |
TCh-NOR Final | E83 King's Indian, Samisch |
| 14. Carlsen vs H Lahlum |
| ½-½ | 42 |
2001 |
Classics IMA | C02 French, Advance |
| 15. H Lahlum vs A Groenn |
| ½-½ | 76 |
2001 |
ch-NOR | A50 Queen's Pawn Game |
| 16. H Lahlum vs Carlsen |
| ½-½ | 37 |
2002 |
Bergen Chess International | D15 Queen's Gambit Declined Slav |
| 17. J Hvenekilde vs H Lahlum |
| ½-½ | 28 |
2006 |
Politiken Cup | D31 Queen's Gambit Declined |
| 18. R Danielsson vs H Lahlum |
| ½-½ | 25 |
2006 |
Politiken Cup | D31 Queen's Gambit Declined |
| 19. H Lahlum vs E Hagesaether |
| ½-½ | 26 |
2007 |
TCh-NOR 2006-7 | E83 King's Indian, Samisch |
| 20. H Lahlum vs A Kulago |
| ½-½ | 12 |
2007 |
Arctic Chess Challenge | D48 Queen's Gambit Declined Semi-Slav, Meran |
| 21. H Lahlum vs R Vik Hansen |
| ½-½ | 23 |
2007 |
Arctic Chess Challenge | E34 Nimzo-Indian, Classical, Noa Variation |