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| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 1. Westerinen vs H Bredewout |
| 1-0 | 30 | 1969 | Hoogovens-B | C84 Ruy Lopez, Closed |
| 2. Westerinen vs Y Kraidman |
| 0-1 | 48 | 1969 | Netanya | C84 Ruy Lopez, Closed |
| 3. Westerinen vs J Tompa |
| ½-½ | 43 | 1969 | World Student Team Championship Final-B | C84 Ruy Lopez, Closed |
| 4. Westerinen vs Ivkov |
 | 0-1 | 36 | 1970 | Hoogovens | C84 Ruy Lopez, Closed |
| 5. Westerinen vs Y Kraidman |
| 0-1 | 51 | 1971 | Netanya | C84 Ruy Lopez, Closed |
| 6. Westerinen vs E Poulsson |
| 0-1 | 44 | 1973 | Oslo Chess International | C84 Ruy Lopez, Closed |
| 7. Westerinen vs M Hebden |
| ½-½ | 46 | 1981 | Lewisham International | C84 Ruy Lopez, Closed |
| 8. Westerinen vs G Timoscenko |
| 0-1 | 42 | 1986 | Helsinki | C84 Ruy Lopez, Closed |
| 9. Westerinen vs M Hebden |
| 0-1 | 39 | 1987 | Gausdal Young Men | C84 Ruy Lopez, Closed |
| 10. Westerinen vs E Forsaa |
| 1-0 | 30 | 2007 | Arctic Chess Challenge | C84 Ruy Lopez, Closed |
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Kibitzing
