| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 26. E Espinosa vs M A Diaz Perez |
| ½-½ | 59 | 2023 | Iberoamericano Championship | C92 Ruy Lopez, Closed |
| 27. M A Diaz Perez vs J Cori |
| ½-½ | 55 | 2023 | Iberoamericano Championship | B15 Caro-Kann |
| 28. M A Diaz Perez vs S Andreev |
| 1-0 | 49 | 2024 | Semana Santa Open | B13 Caro-Kann, Exchange |
| 29. R F Neagu vs M A Diaz Perez |
| 1-0 | 43 | 2024 | Semana Santa Open | D37 Queen's Gambit Declined |
| 30. A Merario Alarcon vs M A Diaz Perez |
| ½-½ | 63 | 2024 | Semana Santa Open | E44 Nimzo-Indian, Fischer Variation, 5.Ne2 |
| 31. M A Diaz Perez vs C Colbow |
| 0-1 | 39 | 2024 | Semana Santa Open | D37 Queen's Gambit Declined |
| 32. Kushagra Jain vs M A Diaz Perez |
| 0-1 | 31 | 2024 | Sitges Open-A | B11 Caro-Kann, Two Knights, 3...Bg4 |
| 33. M A Diaz Perez vs L Lau |
| ½-½ | 61 | 2024 | Sitges Open-A | D40 Queen's Gambit Declined, Semi-Tarrasch |
| 34. P Jankowiak vs M A Diaz Perez |
| 0-1 | 38 | 2024 | Sitges Open-A | C46 Three Knights |
| 35. M A Diaz Perez vs Vedant Pimpalkhare |
| 1-0 | 29 | 2024 | Sitges Open-A | C03 French, Tarrasch |
| 36. R Aloma Vidal vs M A Diaz Perez |
| ½-½ | 7 | 2024 | Sitges Open-A | A04 Reti Opening |
| 37. M A Diaz Perez vs F Valenzuela Gomez |
| 1-0 | 34 | 2024 | Sitges Open-A | B62 Sicilian, Richter-Rauzer |
| 38. T Laurusas vs M A Diaz Perez |
| 1-0 | 45 | 2024 | Sitges Open-A | D40 Queen's Gambit Declined, Semi-Tarrasch |
| 39. M A Diaz Perez vs Nitin Vekhande Kshatriya |
| 1-0 | 58 | 2024 | Sitges Open-A | D37 Queen's Gambit Declined |
| 40. D I Berdayes Ason vs M A Diaz Perez |
| ½-½ | 12 | 2024 | Sitges Open-A | C47 Four Knights |
| 41. M A Diaz Perez vs J de Jesus Perez |
 | 0-1 | 59 | 2025 | Cuban Championship | B72 Sicilian, Dragon |
| 42. B Torres Valiente vs M A Diaz Perez |
| 0-1 | 65 | 2025 | Cuban Championship | E00 Queen's Pawn Game |
| 43. M A Diaz Perez vs J J Perez Leiva |
| 0-1 | 66 | 2025 | Cuban Championship | E11 Bogo-Indian Defense |
| 44. J M Gomez Sanchez vs M A Diaz Perez |
| 0-1 | 63 | 2025 | Cuban Championship | A13 English |
| 45. M A Diaz Perez vs M J la Villa Rivas |
| 1-0 | 41 | 2025 | Cuban Championship | E43 Nimzo-Indian, Fischer Variation |
| 46. D I Berdayes Ason vs M A Diaz Perez |
| 1-0 | 107 | 2025 | Cuban Championship | D35 Queen's Gambit Declined |
| 47. M A Diaz Perez vs K Solares Orozco |
| ½-½ | 44 | 2025 | Cuban Championship | C09 French, Tarrasch, Open Variation, Main line |
| 48. A J Almaguel Mendez vs M A Diaz Perez |
| ½-½ | 76 | 2025 | Cuban Championship | C79 Ruy Lopez, Steinitz Defense Deferred |
| 49. R Diaz Murgada vs M A Diaz Perez |
| ½-½ | 13 | 2025 | Cuban Championship | D02 Queen's Pawn Game |
| 50. M A Diaz Perez vs D Hidalgo Diaz |
| 1-0 | 72 | 2025 | Cuban Championship | D37 Queen's Gambit Declined |
Kibitzing
