| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. H Westerinen vs K Valkesalmi |
| 1-0 | 30 |
1986 |
Helsinki | C31 King's Gambit Declined, Falkbeer Counter Gambit |
| 2. H Westerinen vs K Valkesalmi |
| 1-0 | 30 |
1986 |
Helsinki 08 | C32 King's Gambit Declined, Falkbeer Counter Gambit |
| 3. H Westerinen vs Gerd-Peter Gruen |
| 0-1 | 32 |
1987 |
BRD-BL Bamberg/Braun | C31 King's Gambit Declined, Falkbeer Counter Gambit |
| 4. H Westerinen vs P Motwani |
| 1-0 | 42 |
1988 |
London WFW | C31 King's Gambit Declined, Falkbeer Counter Gambit |
| 5. H Westerinen vs B Ostenstad |
| 1-0 | 32 |
1989 |
Esboo | C32 King's Gambit Declined, Falkbeer Counter Gambit |
| 6. H Westerinen vs I Zaitsev |
| 1-0 | 27 |
1989 |
Moskva | C32 King's Gambit Declined, Falkbeer Counter Gambit |
| 7. H Westerinen vs S Agdestein |
 | 0-1 | 38 |
1989 |
Espoo zt | C32 King's Gambit Declined, Falkbeer Counter Gambit |
| 8. H Westerinen vs T Engqvist |
| 1-0 | 10 |
1990 |
Gausdal Troll | C31 King's Gambit Declined, Falkbeer Counter Gambit |
| 9. H Westerinen vs O Rodriguez |
| ½-½ | 47 |
1990 |
Vulca | C32 King's Gambit Declined, Falkbeer Counter Gambit |
| 10. H Westerinen vs T Engqvist |
| 1-0 | 19 |
1990 |
Gausdal Troll Master | C31 King's Gambit Declined, Falkbeer Counter Gambit |
| 11. H Westerinen vs Ye Rongguang |
| ½-½ | 64 |
1990 |
Novi | C31 King's Gambit Declined, Falkbeer Counter Gambit |
| 12. H Westerinen vs R Elseth |
| 1-0 | 30 |
1990 |
Gausdal Troll Master | C32 King's Gambit Declined, Falkbeer Counter Gambit |
| 13. H Westerinen vs A Harju |
| 1-0 | 31 |
1992 |
1 | C30 King's Gambit Declined |
| 14. H Westerinen vs J Norri |
| ½-½ | 21 |
1992 |
FIN-ch Helsinki | C30 King's Gambit Declined |
| 15. H Westerinen vs Blatny |
| 1-0 | 38 |
1992 |
Gausdal | C30 King's Gambit Declined |
| 16. H Westerinen vs M Marin |
| 1-0 | 42 |
1992 |
Manila ol 09 | C31 King's Gambit Declined, Falkbeer Counter Gambit |
| 17. H Westerinen vs M Kaabi |
| 1-0 | 43 |
1992 |
Manila ol 05 | C30 King's Gambit Declined |
| 18. H Westerinen vs H A Gretarsson |
| ½-½ | 113 |
1995 |
9 | C31 King's Gambit Declined, Falkbeer Counter Gambit |
| 19. H Westerinen vs B Kristensen |
| ½-½ | 23 |
1995 |
It (cat.7), V, Gausdal (Norway | C30 King's Gambit Declined |
| 20. H Westerinen vs R H Fyllingen |
| 0-1 | 30 |
1995 |
7 | C30 King's Gambit Declined |
| 21. H Westerinen vs T Leosson |
| 1-0 | 40 |
1996 |
03 | C30 King's Gambit Declined |
| 22. H Westerinen vs R Liiva |
| 0-1 | 44 |
1996 |
Memorial P.Keres b c | C30 King's Gambit Declined |
| 23. H Westerinen vs S Lejlic |
| ½-½ | 34 |
1996 |
It open | C30 King's Gambit Declined |
| 24. H Westerinen vs K Edvardsson |
| 1-0 | 38 |
1997 |
It open | C31 King's Gambit Declined, Falkbeer Counter Gambit |
| 25. H Westerinen vs R Hardarson |
| 1-0 | 27 |
1997 |
It open | C30 King's Gambit Declined |
