| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 26. L Kokkinos vs M Sisniega |
| 0-1 | 40 | 1976 | World Junior Championship 1976/77 | C16 French, Winawer |
| 27. N Grinberg vs M Sisniega |
| ½-½ | 59 | 1976 | World Junior Championship 1976/77 | C05 French, Tarrasch |
| 28. M Sisniega vs O Foisor |
| 1-0 | 41 | 1976 | World Junior Championship 1976/77 | B31 Sicilian, Rossolimo Variation |
| 29. R Vera vs M Sisniega |
| 0-1 | 41 | 1976 | World Junior Championship 1976/77 | C00 French Defense |
| 30. I Rogers vs M Sisniega |
| 1-0 | 27 | 1977 | Hoogovens Reserves | C15 French, Winawer |
| 31. M Sisniega vs H Schussler |
| 1-0 | 55 | 1977 | World Junior Championship 1976/77 | B08 Pirc, Classical |
| 32. Vladimirov vs M Sisniega |
| ½-½ | 45 | 1977 | World Junior Championship 1976/77 | E17 Queen's Indian |
| 33. M Sisniega vs I Rogers |
| 1-0 | 57 | 1977 | World Junior Championship 1976/77 | B14 Caro-Kann, Panov-Botvinnik Attack |
| 34. M Diesen vs M Sisniega |
| 1-0 | 42 | 1977 | World Junior Championship 1976/77 | C05 French, Tarrasch |
| 35. M Sisniega vs Chandler |
| 0-1 | 35 | 1977 | Maspalomas open 4th | B47 Sicilian, Taimanov (Bastrikov) Variation |
| 36. Janosevic vs M Sisniega |
| 1-0 | 39 | 1977 | Sava Vukovic Memorial | C16 French, Winawer |
| 37. M Sisniega vs K Honfi |
| 1-0 | 41 | 1977 | Sava Vukovic Memorial | B43 Sicilian, Kan, 5.Nc3 |
| 38. G Cabrilo vs M Sisniega |
| 0-1 | 48 | 1977 | Sava Vukovic Memorial | C19 French, Winawer, Advance |
| 39. M Sisniega vs S Cvetkovic |
| 1-0 | 61 | 1977 | Sava Vukovic Memorial | B82 Sicilian, Scheveningen |
| 40. S Djuric vs M Sisniega |
| 0-1 | 44 | 1977 | Sava Vukovic Memorial | A15 English |
| 41. M Sisniega vs M Vuruna |
| 1-0 | 36 | 1977 | Sava Vukovic Memorial | B00 Uncommon King's Pawn Opening |
| 42. W Schmidt vs M Sisniega |
| ½-½ | 71 | 1977 | Sava Vukovic Memorial | E17 Queen's Indian |
| 43. M Sisniega vs Z Krnic |
| 0-1 | 65 | 1977 | Sava Vukovic Memorial | B30 Sicilian |
| 44. S Velickovic vs M Sisniega |
| 0-1 | 36 | 1977 | Sava Vukovic Memorial | A07 King's Indian Attack |
| 45. M Sisniega vs S Skembris |
| 0-1 | 70 | 1977 | World Junior Championship | B30 Sicilian |
| 46. N Grinberg vs M Sisniega |
| 0-1 | 33 | 1977 | World Junior Championship | A25 English |
| 47. M Sisniega vs R Vera |
| 0-1 | 41 | 1977 | World Junior Championship | B51 Sicilian, Canal-Sokolsky (Rossolimo) Attack |
| 48. M Sisniega vs A Groszpeter |
 | 1-0 | 22 | 1977 | World Junior Championship | B13 Caro-Kann, Exchange |
| 49. A Zapata vs M Sisniega |
| 0-1 | 56 | 1977 | World Junior Championship | B45 Sicilian, Taimanov |
| 50. V Maki vs M Sisniega |
| ½-½ | 31 | 1977 | World Junior Championship | A25 English |
Kibitzing
