| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 26. J Rejfir vs F Mastichiadis |
| 1-0 | 32 | 1956 | Moscow Olympiad qual-4 | E81 King's Indian, Samisch |
| 27. F Mastichiadis vs E Weichselbaumer |
| 0-1 | 50 | 1956 | Moscow Olympiad Final-C | E26 Nimzo-Indian, Samisch |
| 28. A Lotfy vs F Mastichiadis |
| 1-0 | 46 | 1956 | Moscow Olympiad Final-C | C82 Ruy Lopez, Open |
| 29. Tserendagva vs F Mastichiadis |
| 1-0 | 72 | 1956 | Moscow Olympiad Final-C | E80 King's Indian, Samisch Variation |
| 30. F Mastichiadis vs K O'Riordan |
| 1-0 | 26 | 1956 | Moscow Olympiad Final-C | E26 Nimzo-Indian, Samisch |
| 31. G Philippe vs F Mastichiadis |
| ½-½ | 42 | 1956 | Moscow Olympiad Final-C | E94 King's Indian, Orthodox |
| 32. Pedro J Borras vs F Mastichiadis |
| 1-0 | 36 | 1956 | Moscow Olympiad Final-C | C81 Ruy Lopez, Open, Howell Attack |
Kibitzing
