| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. H Pfleger vs H Westerinen |
| 1-0 | 56 |
1961 |
Wch U20 | E73 King's Indian |
| 2. A Hollis vs H Westerinen |
| ½-½ | 48 |
1961 |
WchT U26 08th | E62 King's Indian, Fianchetto |
| 3. Kavalek vs H Westerinen |
| ½-½ | 42 |
1963 |
Halle | E67 King's Indian, Fianchetto |
| 4. S Johannessen vs H Westerinen |
| 1-0 | 30 |
1963 |
Halle | E62 King's Indian, Fianchetto |
| 5. A Hollis vs H Westerinen |
| 1-0 | 46 |
1964 |
WchT U26 11th fin-B | E60 King's Indian Defense |
| 6. I Polgar vs H Westerinen |
 | 1-0 | 47 |
1966 |
Orebro Stud olm fA | E75 King's Indian, Averbakh, Main line |
| 7. Korchnoi vs H Westerinen |
| ½-½ | 41 |
1967 |
Leningrad | E62 King's Indian, Fianchetto |
| 8. Smyslov vs H Westerinen |
| 1-0 | 31 |
1967 |
La | E61 King's Indian |
| 9. Schmid vs H Westerinen |
| 1-0 | 39 |
1967 |
Capablanca mem | E91 King's Indian |
| 10. V Osnos vs H Westerinen |
| ½-½ | 31 |
1967 |
October Revolution 50 | E71 King's Indian, Makagonov System (5.h3) |
| 11. Geller vs H Westerinen |
| 1-0 | 38 |
1968 |
Goteborg izt | E62 King's Indian, Fianchetto |
| 12. Petrosian vs H Westerinen |
| 1-0 | 41 |
1968 |
Maliorka | E81 King's Indian, Samisch |
| 13. Gligoric vs H Westerinen |
| 0-1 | 40 |
1968 |
Palma de Mallorca | E91 King's Indian |
| 14. J Kozma vs H Westerinen |
| 1-0 | 39 |
1969 |
Hoogovens-B | E63 King's Indian, Fianchetto, Panno Variation |
| 15. Larsen vs H Westerinen |
| 1-0 | 29 |
1969 |
Helsinki m | E71 King's Indian, Makagonov System (5.h3) |
| 16. Reshevsky vs H Westerinen |
 | 1-0 | 41 |
1969 |
Netanya | E62 King's Indian, Fianchetto |
| 17. Larsen vs H Westerinen |
| 1-0 | 42 |
1969 |
Helsinki m | E90 King's Indian |
| 18. Larsen vs H Westerinen |
| 1-0 | 44 |
1969 |
Helsinki m | E90 King's Indian |
| 19. Kavalek vs H Westerinen |
| 1-0 | 33 |
1970 |
Wijk aan Zee I | E91 King's Indian |
| 20. Hort vs H Westerinen |
| 1-0 | 33 |
1970 |
Wijk aan Zee I | E91 King's Indian |
| 21. F Kuijpers vs H Westerinen |
| ½-½ | 48 |
1970 |
Hoogovens | E83 King's Indian, Samisch |
| 22. Filip vs H Westerinen |
| 1-0 | 52 |
1970 |
Hoogovens | E91 King's Indian |
| 23. J H Donner vs H Westerinen |
| 0-1 | 26 |
1970 |
Hoogevens | E62 King's Indian, Fianchetto |
| 24. H Ree vs H Westerinen |
| 0-1 | 46 |
1970 |
Wijk aan Zee I | E83 King's Indian, Samisch |
| 25. Benko vs H Westerinen |
| 0-1 | 27 |
1970 |
Wijk aan Zee I | E61 King's Indian |