| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 51. O Zambrana vs S Dumont |
| 1-0 | 39 | 2003 | Sao Paulo Itau Cup 7th | B44 Sicilian |
| 52. O Zambrana vs J F Cubas |
| 1-0 | 43 | 2003 | Buenos Aires CGT | C07 French, Tarrasch |
| 53. O Zambrana vs D Flores |
| 1-0 | 45 | 2004 | Moncada Cup 2nd | B01 Scandinavian |
| 54. O Zambrana vs L Also |
 | 1-0 | 29 | 2004 | V Open | C53 Giuoco Piano |
| 55. L Valenzuela Fuentealba vs O Zambrana |
| 0-1 | 34 | 2004 | Copa ENTEL | E12 Queen's Indian |
| 56. M Llorens vs O Zambrana |
| 0-1 | 42 | 2004 | Copa ENTEL | B31 Sicilian, Rossolimo Variation |
| 57. O Zambrana vs R Vasquez Schroeder |
| ½-½ | 19 | 2004 | Copa ENTEL | B33 Sicilian |
| 58. Granda Zuniga vs O Zambrana |
| ½-½ | 24 | 2004 | Copa ENTEL | E53 Nimzo-Indian, 4.e3 |
| 59. O Zambrana vs R Leitao |
| 0-1 | 33 | 2004 | Copa ENTEL | B12 Caro-Kann Defense |
| 60. J F Cubas vs O Zambrana |
| ½-½ | 20 | 2004 | Copa ENTEL | B21 Sicilian, 2.f4 and 2.d4 |
| 61. O Zambrana vs E Arancibia |
| 1-0 | 33 | 2004 | Copa ENTEL | B41 Sicilian, Kan |
| 62. Panno vs O Zambrana |
| 1-0 | 42 | 2004 | Copa ENTEL | A14 English |
| 63. O Zambrana vs L Rojas Keim |
| 1-0 | 61 | 2004 | Copa ENTEL | C07 French, Tarrasch |
| 64. A Rodriguez Vila vs O Zambrana |
| 1-0 | 46 | 2004 | Copa ENTEL | B25 Sicilian, Closed |
| 65. O Zambrana vs C Velasquez Ojeda |
| 1-0 | 19 | 2004 | Copa ENTEL | B90 Sicilian, Najdorf |
| 66. O Zambrana vs E Rodriguez Guerrero |
| ½-½ | 34 | 2004 | Capablanca Memorial PREMIER II | C07 French, Tarrasch |
| 67. H Pecorelli Garcia vs O Zambrana |
| ½-½ | 44 | 2004 | Capablanca Memorial PREMIER II | D24 Queen's Gambit Accepted |
| 68. O Zambrana vs F de la Paz Perdomo |
| ½-½ | 53 | 2004 | Capablanca Memorial PREMIER II | C53 Giuoco Piano |
| 69. M Borriss vs O Zambrana |
| ½-½ | 52 | 2004 | Capablanca Memorial PREMIER II | B33 Sicilian |
| 70. O Zambrana vs R Hernandez Onna |
| 1-0 | 25 | 2004 | Capablanca Memorial PREMIER II | B32 Sicilian |
| 71. O Zambrana vs O Almeida Quintana |
| 0-1 | 25 | 2004 | Capablanca Memorial PREMIER II | C03 French, Tarrasch |
| 72. J Nogueiras vs O Zambrana |
| ½-½ | 15 | 2004 | Capablanca Memorial PREMIER II | A28 English |
| 73. O Zambrana vs I Zugic |
| ½-½ | 54 | 2004 | Capablanca Memorial PREMIER II | B12 Caro-Kann Defense |
| 74. J Rohl vs O Zambrana |
| 1-0 | 40 | 2004 | Capablanca Memorial PREMIER II | B30 Sicilian |
| 75. O Zambrana vs O Perea |
| 1-0 | 39 | 2004 | Capablanca Memorial PREMIER II | C42 Petrov Defense |
Kibitzing
