| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 26. M Hawelko vs J Pereira Santos |
| 0-1 | 39 | 1978 | European Junior Championship 1978/79 | A16 English |
| 27. J Pereira Santos vs G de Boer |
 | 0-1 | 41 | 1978 | European Junior Championship 1978/79 | E81 King's Indian, Samisch |
| 28. A C Yurtseven vs J Pereira Santos |
| 1-0 | 54 | 1978 | European Junior Championship 1978/79 | B18 Caro-Kann, Classical |
| 29. J Pereira Santos vs L Zimmermann |
| ½-½ | 28 | 1978 | European Junior Championship 1978/79 | D97 Grunfeld, Russian |
| 30. A Muir vs J Pereira Santos |
| ½-½ | 41 | 1978 | European Junior Championship 1978/79 | B18 Caro-Kann, Classical |
| 31. J Pereira Santos vs N Grinberg |
| ½-½ | 30 | 1978 | European Junior Championship 1978/79 | A32 English, Symmetrical Variation |
| 32. B Neuenschwander vs J Pereira Santos |
| ½-½ | 35 | 1978 | European Junior Championship 1978/79 | D00 Queen's Pawn Game |
| 33. I Gazik vs J Pereira Santos |
| 1-0 | 32 | 1978 | European Junior Championship 1978/79 | B13 Caro-Kann, Exchange |
| 34. J Pereira Santos vs T Natsis |
| 1-0 | 36 | 1979 | European Junior Championship 1978/79 | E06 Catalan, Closed, 5.Nf3 |
| 35. L Arnold vs J Pereira Santos |
| 0-1 | 26 | 1979 | European Junior Championship 1978/79 | B18 Caro-Kann, Classical |
| 36. J Pereira Santos vs E Swoboda |
| ½-½ | 19 | 1979 | European Junior Championship 1978/79 | A33 English, Symmetrical |
| 37. T Karolyi vs J Pereira Santos |
| 0-1 | 41 | 1979 | European Junior Championship 1978/79 | B18 Caro-Kann, Classical |
| 38. H van Riemsdijk vs J Pereira Santos |
| 0-1 | 44 | 1980 | Valletta Olympiad | B18 Caro-Kann, Classical |
| 39. D Rajkovic vs J Pereira Santos |
| ½-½ | 28 | 1981 | Budva Zonal | D99 Grunfeld Defense, Smyslov |
| 40. J Pereira Santos vs Ivkov |
| ½-½ | 51 | 1981 | Budva Zonal | E81 King's Indian, Samisch |
| 41. J Rukavina vs J Pereira Santos |
| ½-½ | 17 | 1981 | Budva Zonal | A00 Uncommon Opening |
| 42. J Pereira Santos vs A Afifi |
| 1-0 | 47 | 1981 | Budva Zonal | E08 Catalan, Closed |
| 43. S Tatai vs J Pereira Santos |
| 1-0 | 28 | 1981 | Budva Zonal | B46 Sicilian, Taimanov Variation |
| 44. J Pereira Santos vs S Skembris |
| 0-1 | 40 | 1981 | Budva Zonal | A31 English, Symmetrical, Benoni Formation |
| 45. G Trikaliotis vs J Pereira Santos |
| 0-1 | 36 | 1981 | Budva Zonal | A46 Queen's Pawn Game |
| 46. J Pereira Santos vs B Toth |
| 1-0 | 28 | 1981 | Budva Zonal | A31 English, Symmetrical, Benoni Formation |
| 47. S Mariotti vs J Pereira Santos |
| ½-½ | 13 | 1981 | Budva Zonal | D78 Neo-Grunfeld, 6.O-O c6 |
| 48. J Pereira Santos vs A Fernandes |
| ½-½ | 6 | 1981 | Budva Zonal | A00 Uncommon Opening |
| 49. J Guimaraes vs J Pereira Santos |
| ½-½ | 29 | 1981 | Budva Zonal | B13 Caro-Kann, Exchange |
| 50. P Avgousti vs J Pereira Santos |
| 0-1 | 43 | 1981 | Budva Zonal | B44 Sicilian |
Kibitzing
