| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 26. R Prasca vs D Mieles Palau |
| 1-0 | 60 |
2004 |
36th Olympiad | B22 Sicilian, Alapin |
| 27. D Mieles Palau vs Weeramantry |
| 1-0 | 38 |
2004 |
36th Olympiad | A16 English |
| 28. D Mieles Palau vs M Marin |
| 0-1 | 42 |
2004 |
36th Olympiad | B07 Pirc |
| 29. D Valerga vs D Mieles Palau |
| 1-0 | 29 |
2005 |
Mercosur Cup | B32 Sicilian |
| 30. D Mieles Palau vs J F Cubas |
| ½-½ | 23 |
2005 |
Mercosur Cup | D18 Queen's Gambit Declined Slav, Dutch |
| 31. D Mieles Palau vs A De Dovitiis |
| 0-1 | 52 |
2005 |
American Continental Championship | C06 French, Tarrasch |
| 32. D Fernandez vs D Mieles Palau |
| 0-1 | 46 |
2005 |
Mercosur Cup | B31 Sicilian, Rossolimo Variation |
| 33. D Pacheco vs D Mieles Palau |
| 1-0 | 48 |
2005 |
American Continental Championship | E05 Catalan, Open, Classical line |
| 34. E Scarella vs D Mieles Palau |
| 0-1 | 35 |
2005 |
Mercosur Cup | D64 Queen's Gambit Declined, Orthodox, Rubinstein Attack |
| 35. Shabalov vs D Mieles Palau |
| 1-0 | 39 |
2005 |
American Continental Championship | B33 Sicilian |
| 36. D Mieles Palau vs S Alonso |
| 0-1 | 26 |
2005 |
Mercosur Cup | B77 Sicilian, Dragon, Yugoslav Attack |
| 37. D Mieles Palau vs E Lawson |
| ½-½ | 40 |
2005 |
American Continental Championship | B33 Sicilian |
| 38. D Mieles Palau vs O Castro |
| 1-0 | 33 |
2005 |
Guayaquil, ECU | C52 Evans Gambit |
| 39. D Mieles Palau vs Shredder |
 | 0-1 | 36 |
2005 |
Mercosur Cup | B45 Sicilian, Taimanov |
| 40. D Mieles Palau vs H Contreras |
| 1-0 | 32 |
2005 |
American Continental Championship | B51 Sicilian, Canal-Sokolsky (Rossolimo) Attack |
| 41. C Garcia-Palermo vs D Mieles Palau |
| ½-½ | 41 |
2005 |
Mercosur Cup | D37 Queen's Gambit Declined |
| 42. C Luconi vs D Mieles Palau |
| ½-½ | 47 |
2005 |
American Continental Championship | D02 Queen's Pawn Game |
| 43. D Mieles Palau vs J Echavarria |
| 1-0 | 45 |
2005 |
American Continental Championship | B33 Sicilian |
| 44. M Fierro-Baquero vs D Mieles Palau |
| ½-½ | 12 |
2005 |
zt 2.3 | C50 Giuoco Piano |
| 45. S Slipak vs D Mieles Palau |
| ½-½ | 39 |
2005 |
Mercosur Cup | D37 Queen's Gambit Declined |
| 46. J Minaya vs D Mieles Palau |
| 0-1 | 23 |
2005 |
American Continental Championship | B24 Sicilian, Closed |
| 47. D Mieles Palau vs P Lafuente |
| ½-½ | 14 |
2005 |
Mercosur Cup | B48 Sicilian, Taimanov Variation |
| 48. D Mieles Palau vs L Burijovich |
| 1-0 | 43 |
2005 |
American Continental Championship | B48 Sicilian, Taimanov Variation |
| 49. F Quiroga vs D Mieles Palau |
| 0-1 | 43 |
2005 |
American Continental Championship | D63 Queen's Gambit Declined, Orthodox Defense |
| 50. D Mieles Palau vs A Rodriguez |
| ½-½ | 32 |
2005 |
Mercosur Cup | B01 Scandinavian |