| page 1 of 1; 15 games |
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| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. L Gutman vs DeFirmian |
| 1-0 | 33 |
1981 |
Lone | A30 English, Symmetrical |
| 2. J Thinnsen vs DeFirmian |
| 0-1 | 38 |
1981 |
Lone Pine (USA) | A30 English, Symmetrical |
| 3. H Pfleger vs DeFirmian |
| ½-½ | 66 |
1981 |
Lone Pine (USA) | A30 English, Symmetrical |
| 4. Z Krnic vs DeFirmian |
| 1-0 | 35 |
1981 |
Nis (Yugoslavia) | A30 English, Symmetrical |
| 5. Adorjan vs DeFirmian |
| ½-½ | 14 |
1983 |
It (cat.10) | A30 English, Symmetrical |
| 6. H Olafsson vs DeFirmian |
| 0-1 | 28 |
1984 |
Reykjavik | A30 English, Symmetrical |
| 7. D Cramling vs DeFirmian |
| ½-½ | 51 |
1986 |
Biel (Switzerland) | A30 English, Symmetrical |
| 8. Gulko vs DeFirmian |
| ½-½ | 35 |
1987 |
Estes Park | A30 English, Symmetrical |
| 9. D Verduga vs DeFirmian |
| ½-½ | 19 |
1987 |
Ch USA | A30 English, Symmetrical |
| 10. Shamkovich vs DeFirmian |
| ½-½ | 39 |
1987 |
Reykjavik (Iceland) | A30 English, Symmetrical |
| 11. Larsen vs DeFirmian |
| ½-½ | 60 |
1988 |
New York Open (02) | A30 English, Symmetrical |
| 12. M Steinbacher vs DeFirmian |
| 0-1 | 41 |
1989 |
Lugano (Switzerland) | A30 English, Symmetrical |
| 13. A Betaneli vs DeFirmian |
| 0-1 | 43 |
1993 |
It (open) | A30 English, Symmetrical |
| 14. Korchnoi vs DeFirmian |
| ½-½ | 46 |
1995 |
San Francisco (Pan Pacific), | A30 English, Symmetrical |
| 15. D Andersen vs DeFirmian |
| 0-1 | 29 |
2006 |
Politiken Cup | A30 English, Symmetrical |
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