| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 26. O Yepez Obando vs H Santa Cruz |
| 1-0 | 41 | 1966 | Pan American Championship | D08 Queen's Gambit Declined, Albin Counter Gambit |
| 27. H Santa Cruz vs J Arraya |
| 1-0 | 53 | 1966 | Pan American Championship | C00 French Defense |
| 28. S Garcia Martinez vs H Santa Cruz |
| ½-½ | 23 | 1966 | Pan American Championship | D57 Queen's Gambit Declined, Lasker Defense |
| 29. H Santa Cruz vs O Gadia |
| 0-1 | 25 | 1966 | Pan American Championship | B94 Sicilian, Najdorf |
| 30. I Calero vs H Santa Cruz |
| ½-½ | 35 | 1966 | Pan American Championship | D32 Queen's Gambit Declined, Tarrasch |
| 31. Letelier vs H Santa Cruz |
| ½-½ | 24 | 1966 | Pan American Championship | D56 Queen's Gambit Declined |
| 32. H Santa Cruz vs J L Alvarez del Monte |
| ½-½ | 16 | 1966 | Pan American Championship | C34 King's Gambit Accepted |
| 33. H Santa Cruz vs C Bielicki |
| 0-1 | 60 | 1966 | Pan American Championship | A02 Bird's Opening |
| 34. C Cuartas vs H Santa Cruz |
| 0-1 | 45 | 1966 | Pan American Championship | D02 Queen's Pawn Game |
| 35. E Cobo Arteaga vs H Santa Cruz |
| 1-0 | 24 | 1966 | Pan American Championship | D41 Queen's Gambit Declined, Semi-Tarrasch |
| 36. H Santa Cruz vs S Schweber |
| 0-1 | 49 | 1966 | Pan American Championship | B28 Sicilian, O'Kelly Variation |
| 37. G Fuster vs H Santa Cruz |
| 1-0 | 44 | 1966 | Pan American Championship | D35 Queen's Gambit Declined |
| 38. A Iglesias vs H Santa Cruz |
| ½-½ | 29 | 1966 | Pan American Championship | A39 English, Symmetrical, Main line with d4 |
| 39. H Santa Cruz vs R Ortega |
| 0-1 | 31 | 1966 | Pan American Championship | B28 Sicilian, O'Kelly Variation |
| 40. J Rodriguez vs H Santa Cruz |
| 1-0 | 45 | 1966 | Pan American Championship | A07 King's Indian Attack |
| 41. H Santa Cruz vs M Cuellar Gacharna |
| ½-½ | 53 | 1966 | Pan American Championship | C00 French Defense |
| 42. H Santa Cruz vs Korchnoi |
| ½-½ | 34 | 1966 | Havana Olympiad Final-A | B64 Sicilian, Richter-Rauzer Attack |
| 43. H Santa Cruz vs F Thorbergsson |
| 1-0 | 28 | 1966 | Havana Olympiad Final-A | C00 French Defense |
| 44. H Santa Cruz vs Forintos |
| 0-1 | 37 | 1966 | Havana Olympiad Final-A | B27 Sicilian |
| 45. H Santa Cruz vs D Ciric |
| 0-1 | 39 | 1966 | Havana Olympiad Final-A | B80 Sicilian, Scheveningen |
| 46. R Sanguineti vs H Santa Cruz |
| 1-0 | 31 | 1966 | Havana Olympiad Final-A | C98 Ruy Lopez, Closed, Chigorin |
| 47. H Santa Cruz vs N Padevsky |
| ½-½ | 20 | 1966 | Havana Olympiad Final-A | B56 Sicilian |
| 48. Jansa vs H Santa Cruz |
 | 1-0 | 48 | 1966 | Havana Olympiad Final-A | C63 Ruy Lopez, Schliemann Defense |
| 49. H Santa Cruz vs N Minev |
| ½-½ | 46 | 1968 | Varna | B60 Sicilian, Richter-Rauzer |
| 50. H Santa Cruz vs P Peev |
| 0-1 | 46 | 1968 | Varna | B41 Sicilian, Kan |
Kibitzing
