| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 26. M Lorenzini vs P Mas Artigas |
| 1-0 | 22 | 2001 | 5th Pablo Gorbea Mem Open | C05 French, Tarrasch |
| 27. J Galvan Huaraca vs M Lorenzini |
| 1-0 | 36 | 2001 | 5th Pablo Gorbea Mem Open | E26 Nimzo-Indian, Samisch |
| 28. J Menor Villamor vs M Lorenzini |
| 0-1 | 29 | 2001 | 5th Pablo Gorbea Mem Open | B17 Caro-Kann, Steinitz Variation |
| 29. M Lorenzini vs J C Blazquez Gomez |
| 1-0 | 34 | 2004 | Murrieta Hotel 1st | B01 Scandinavian |
| 30. I Cheparinov vs M Lorenzini |
| ½-½ | 58 | 2004 | Roquetas de Mar op 15th | B12 Caro-Kann Defense |
| 31. J Fernandez Calzada vs M Lorenzini |
| 0-1 | 31 | 2005 | XI Anibal Open | B12 Caro-Kann Defense |
| 32. M Lorenzini vs G Henriksen |
| 1-0 | 82 | 2005 | XI Anibal Open | A46 Queen's Pawn Game |
| 33. V Burmakin vs M Lorenzini |
| 0-1 | 44 | 2005 | XI Anibal Open | E00 Queen's Pawn Game |
| 34. M Lorenzini vs J Ivanov |
| 1-0 | 43 | 2005 | XI Anibal Open | B42 Sicilian, Kan |
| 35. I Cheparinov vs M Lorenzini |
| 1-0 | 32 | 2005 | XI Anibal Open | B01 Scandinavian |
| 36. M Lorenzini vs L Breivik |
| 1-0 | 55 | 2005 | XI Anibal Open | B31 Sicilian, Rossolimo Variation |
| 37. D Komljenovic vs M Lorenzini |
| 0-1 | 76 | 2005 | XI Anibal Open | D35 Queen's Gambit Declined |
| 38. S del Rio de Angelis vs M Lorenzini |
| 0-1 | 79 | 2005 | XI Anibal Open | D35 Queen's Gambit Declined |
| 39. M Lorenzini vs P I Tachella |
| 1-0 | 33 | 2012 | 86th ch-ARG | C50 Giuoco Piano |
| 40. M F Fernandez vs M Lorenzini |
| 0-1 | 32 | 2012 | 86th ch-ARG | D43 Queen's Gambit Declined Semi-Slav |
| 41. M Lorenzini vs L Krysa |
| ½-½ | 36 | 2012 | 86th ch-ARG | C53 Giuoco Piano |
| 42. M Lorenzini vs J Benedetti |
| 1-0 | 43 | 2012 | 86th ch-ARG | C64 Ruy Lopez, Classical |
| 43. E Julia vs M Lorenzini |
| ½-½ | 62 | 2012 | 86th ch-ARG | B07 Pirc |
| 44. R Felgaer vs M Lorenzini |
| ½-½ | 25 | 2012 | 86th ch-ARG | C41 Philidor Defense |
| 45. M Lorenzini vs C Dolezal |
| 1-0 | 59 | 2012 | 86th ch-ARG | C55 Two Knights Defense |
| 46. M Lorenzini vs S Mareco |
| 1-0 | 103 | 2012 | 86th ch-ARG | B51 Sicilian, Canal-Sokolsky (Rossolimo) Attack |
| 47. D Lemos vs M Lorenzini |
| 0-1 | 70 | 2012 | 86th ch-ARG | D16 Queen's Gambit Declined Slav |
| 48. M Lorenzini vs S Alonso |
| ½-½ | 14 | 2012 | 86th ch-ARG | B22 Sicilian, Alapin |
| 49. P Ricardi vs M Lorenzini |
| 1-0 | 72 | 2012 | 86th ch-ARG | A13 English |
| 50. M Lorenzini vs I Njobvu |
 | 1-0 | 24 | 2012 | Istanbul Olympiad | C05 French, Tarrasch |
Kibitzing
