| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. L Olsson vs T Johansson |
| 1-0 | 41 |
2001 |
Nordic Championships | A42 Modern Defense, Averbakh System |
| 2. L Olsson vs S Johannessen |
| ½-½ | 13 |
2001 |
Nordic Championships | A55 Old Indian, Main line |
| 3. P Carlsson vs L Olsson |
| 1-0 | 32 |
2001 |
Nordic Championships | B51 Sicilian, Canal-Sokolsky (Rossolimo) Attack |
| 4. S Bjarnason vs L Olsson |
| 1-0 | 40 |
2001 |
Nordic Championships | B92 Sicilian, Najdorf, Opocensky Variation |
| 5. L Olsson vs B Lindberg |
| 1-0 | 27 |
2001 |
Nordic Championships | E00 Queen's Pawn Game |
| 6. L Olsson vs S Pedersen |
| 0-1 | 42 |
2001 |
Nordic Championships | E94 King's Indian, Orthodox |
| 7. H Sorensen vs L Olsson |
| 0-1 | 31 |
2001 |
Nordic Championships | A34 English, Symmetrical |
| 8. J Lauridsen vs L Olsson |
| 0-1 | 56 |
2001 |
Nordic Championships | B90 Sicilian, Najdorf |
| 9. L Olsson vs S Brynell |
| 0-1 | 38 |
2001 |
Nordic Championships | A64 Benoni, Fianchetto, 11...Re8 |
| 10. L Olsson vs J Jirka |
| 0-1 | 34 |
2003 |
World Junior Championships | D15 Queen's Gambit Declined Slav |
| 11. V Bachin vs L Olsson |
| 1-0 | 35 |
2003 |
World Junior Championships | B23 Sicilian, Closed |
| 12. G Rohit vs L Olsson |
| ½-½ | 53 |
2003 |
World Junior Championships | B90 Sicilian, Najdorf |
| 13. L Olsson vs S Azarov |
| 0-1 | 40 |
2003 |
World Junior Championships | E09 Catalan, Closed |
| 14. L Olsson vs Carlsen |
 | 0-1 | 22 |
2003 |
Politiken Cup | D86 Grunfeld, Exchange |
| 15. L Olsson vs L Kritz |
 | 0-1 | 59 |
2003 |
World Junior Championships | A62 Benoni, Fianchetto Variation |
| 16. A Spice vs L Olsson |
| 0-1 | 24 |
2005 |
15th European Team Championship | B29 Sicilian, Nimzovich-Rubinstein |
| 17. M Orr vs L Olsson |
| 0-1 | 45 |
2005 |
15th European Team Championship | A46 Queen's Pawn Game |
| 18. S Nyysti vs L Olsson |
| 1-0 | 49 |
2005 |
15th European Team Championship | B90 Sicilian, Najdorf |
| 19. A Anastasian vs L Olsson |
| 1-0 | 30 |
2005 |
15th European Team Championship | A46 Queen's Pawn Game |
| 20. E Hermansson vs L Olsson |
| 0-1 | 44 |
2005 |
XXXV Rilton Cup | B28 Sicilian, O'Kelly Variation |
| 21. L Olsson vs N Pert |
| 0-1 | 39 |
2005 |
15th European Team Championship | D15 Queen's Gambit Declined Slav |
| 22. L Olsson vs M Mchedlishvili |
| ½-½ | 27 |
2005 |
15th European Team Championship | D15 Queen's Gambit Declined Slav |
| 23. L Olsson vs V Minina |
| 1-0 | 32 |
2005 |
XXXV Rilton Cup | E73 King's Indian |
| 24. S Docx vs L Olsson |
| 0-1 | 31 |
2005 |
15th European Team Championship | B90 Sicilian, Najdorf |
| 25. R Fontaine vs L Olsson |
| 1-0 | 35 |
2005 |
XXXV Rilton Cup | A45 Queen's Pawn Game |