| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 1. H A Machado Jr vs Quinteros |
 | 1-0 | 20 | 1978 | Rio de Janeiro Old Spice | B96 Sicilian, Najdorf |
| 2. D van Riemsdijk vs H A Machado Jr |
| 1-0 | 33 | 1978 | Rio de Janeiro Old Spice | A04 Reti Opening |
| 3. H A Machado Jr vs A S Segal |
| 0-1 | 41 | 1978 | Rio de Janeiro Old Spice | B02 Alekhine's Defense |
| 4. V de Paulo A Brito vs H A Machado Jr |
| 0-1 | 25 | 1978 | Rio de Janeiro Old Spice | C45 Scotch Game |
| 5. A Mascarenhas vs H A Machado Jr |
| 0-1 | 32 | 1978 | Rio de Janeiro Old Spice | A13 English |
| 6. H A Machado Jr vs H van Riemsdijk |
| 0-1 | 16 | 1978 | Rio de Janeiro Old Spice | C68 Ruy Lopez, Exchange |
| 7. A de Padua Franco vs H A Machado Jr |
| 1-0 | 56 | 1980 | Brazilian Championship | C05 French, Tarrasch |
| 8. A S Segal vs H A Machado Jr |
| 1-0 | 37 | 1980 | Brazilian Championship | C10 French |
| 9. H A Machado Jr vs A Mascarenhas |
| ½-½ | 43 | 1980 | Brazilian Championship | C07 French, Tarrasch |
| 10. A C Rocha vs H A Machado Jr |
| 1-0 | 42 | 1980 | Brazilian Championship | C41 Philidor Defense |
| 11. H A Machado Jr vs R Garbarino |
| 0-1 | 18 | 1981 | Pan American-chJ | C30 King's Gambit Declined |
| 12. H A Machado Jr vs J Sunye Neto |
| 1-0 | 20 | 1981 | Brazilian Championship | B97 Sicilian, Najdorf |
| 13. H A Machado Jr vs C Braga |
| 1-0 | 40 | 1981 | Brazilian Championship | B76 Sicilian, Dragon, Yugoslav Attack |
| 14. L Loureiro vs H A Machado Jr |
| ½-½ | 18 | 1981 | Brazilian Championship | C05 French, Tarrasch |
| 15. H A Machado Jr vs A S Segal |
| 0-1 | 36 | 1981 | Brazilian Championship | B06 Robatsch |
| 16. H A Machado Jr vs R Filguth |
| 1-0 | 41 | 1981 | Brazilian Championship | C03 French, Tarrasch |
| 17. H A Machado Jr vs L Tavares da Silva |
| 1-0 | 55 | 1981 | Brazilian Championship | C32 King's Gambit Declined, Falkbeer Counter Gambit |
| 18. E Tsuboi vs H A Machado Jr |
| 1-0 | 27 | 1981 | Brazilian Championship | B05 Alekhine's Defense, Modern |
| 19. H A Machado Jr vs V Chemin |
| 1-0 | 36 | 1981 | Brazilian Championship | B56 Sicilian |
| 20. H A Machado Jr vs M Paolozzi |
| 0-1 | 39 | 1981 | Brazilian Championship | B67 Sicilian, Richter-Rauzer Attack, 7...a6 Defense, 8...Bd7 |
| 21. F Trois vs H A Machado Jr |
| 1-0 | 32 | 1981 | Brazilian Championship | A00 Uncommon Opening |
| 22. H A Machado Jr vs H van Riemsdijk |
| ½-½ | 41 | 1981 | Brazilian Championship | C99 Ruy Lopez, Closed, Chigorin, 12...cd |
| 23. M A Asfora vs H A Machado Jr |
| 0-1 | 41 | 1981 | Brazilian Championship | A10 English |
| 24. A Resende vs H A Machado Jr |
| 1-0 | 27 | 1981 | Brazilian Championship | A46 Queen's Pawn Game |
| 25. G Milos vs H A Machado Jr |
| 1-0 | 17 | 1981 | Brazilian Championship | A10 English |
Kibitzing
