| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. Myagmarsuren vs H Westerinen |
| ½-½ | 35 |
1962 |
Varna olm fB | C00 French Defense |
| 2. M Czerniak vs H Westerinen |
| 1-0 | 50 |
1962 |
Varna ol (Men) | C00 French Defense |
| 3. B Eley vs H Westerinen |
| ½-½ | 50 |
1972 |
Hastings 7273 | C02 French, Advance |
| 4. R Chavez Chavez vs H Westerinen |
| 0-1 | 26 |
1972 |
Skopje ol (Men) | C11 French |
| 5. M V Ghinda vs H Westerinen |
| 0-1 | 51 |
1981 |
It FRG-ch | C11 French |
| 6. M Brodsky vs H Westerinen |
| 1-0 | 42 |
1999 |
VAM Hoogeveen op | C10 French |
| 7. M Schulz vs H Westerinen |
| ½-½ | 25 |
2000 |
Reykjavik op19 | C10 French |
| 8. DeFirmian vs H Westerinen |
| 1-0 | 39 |
2000 |
Reykjavik op19 | C10 French |
| 9. T Lampen vs H Westerinen |
| 0-1 | 55 |
2001 |
TCh-FIN 00-01 | C02 French, Advance |
| 10. P Schapotschnikov vs H Westerinen |
 | 0-1 | 29 |
2004 |
20th European Club Cup | C02 French, Advance |
| 11. T Sammalvuo vs H Westerinen |
| 1-0 | 32 |
2005 |
Finnish Ch | C10 French |
| 12. F Beck vs H Westerinen |
| ½-½ | 42 |
2005 |
Baden Challenge | C01 French, Exchange |
| 13. M Keserovic vs H Westerinen |
| ½-½ | 32 |
2006 |
World Senior Championship | C10 French |
| 14. V Masich vs H Westerinen |
| 0-1 | 54 |
2006 |
World Senior Championship | C16 French, Winawer |
| 15. Conquest vs H Westerinen |
| 1-0 | 37 |
2007 |
European Team Chess Championships | C08 French, Tarrasch, Open, 4.ed ed |
| 16. F Jaeger vs H Westerinen |
| 0-1 | 31 |
2007 |
Arctic Chess Challenge | C16 French, Winawer |
| 17. N Miezis vs H Westerinen |
| 1-0 | 43 |
2007 |
Keres Mem B | C01 French, Exchange |
| 18. S Brunello vs H Westerinen |
| 1-0 | 45 |
2007 |
European Team Chess Championships | C10 French |
| 19. L Kritz vs H Westerinen |
| 1-0 | 41 |
2007 |
European Team Chess Championships | C11 French |
| 20. M Al-Modiahki vs H Westerinen |
| 1-0 | 37 |
2008 |
Reykjavik Open | C16 French, Winawer |
| 21. E Kristinardottir vs H Westerinen |
| 0-1 | 48 |
2008 |
Reykjavik Open | C01 French, Exchange |
| 22. S D Sigfusson vs H Westerinen |
| ½-½ | 47 |
2008 |
Hellir International | C02 French, Advance |
| 23. S Kristjansson vs H Westerinen |
| 1-0 | 42 |
2008 |
Reykjavik Open | C08 French, Tarrasch, Open, 4.ed ed |
| 24. J Ingvason vs H Westerinen |
| 0-1 | 46 |
2010 |
Reykjavik Open | C18 French, Winawer |
| 25. T Hillarp Persson vs H Westerinen |
| 1-0 | 58 |
2010 |
Reykjavik Open | C09 French, Tarrasch, Open Variation, Main line |