| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 1. de Firmian vs Smejkal |
| ½-½ | 59 | 1983 | Kostic Memorial | C95 Ruy Lopez, Closed, Breyer |
| 2. de Firmian vs A Beliavsky |
 | 1-0 | 61 | 1988 | Thessaloniki Olympiad | C95 Ruy Lopez, Closed, Breyer |
| 3. de Firmian vs P K Wells |
| ½-½ | 26 | 1994 | Lost Boys Open | C95 Ruy Lopez, Closed, Breyer |
| 4. de Firmian vs R Ziatdinov |
| ½-½ | 24 | 1999 | Koltanowski Team Match | C95 Ruy Lopez, Closed, Breyer |
| 5. de Firmian vs D V Prasad |
| ½-½ | 40 | 2000 | Istanbul Olympiad | C95 Ruy Lopez, Closed, Breyer |
| 6. de Firmian vs Y Lapshun |
| 1-0 | 53 | 2004 | Chessmaster US Championship 2005 | C95 Ruy Lopez, Closed, Breyer |
Kibitzing
