Game |
| Result | Moves |
Year | Event/Locale | Opening |
1. A Rodriguez vs O Perez Mitjans |
| 1-0 | 36 | 1998 | Havana-ch sf region | B11 Caro-Kann, Two Knights, 3...Bg4 |
2. O Perez Mitjans vs F Corrales Jimenez |
| 1-0 | 71 | 2005 | 40th Capablanca Memorial | B31 Sicilian, Rossolimo Variation |
3. A Giaccio vs O Perez Mitjans |
| 0-1 | 35 | 2005 | Capablanca mem Premier II 40th | B50 Sicilian |
4. O Perez Mitjans vs Y Quesada Perez |
| 0-1 | 25 | 2005 | 40th Capablanca Memorial | B92 Sicilian, Najdorf, Opocensky Variation |
5. O Perez Mitjans vs H Hernandez Carmenates |
| ½-½ | 32 | 2007 | Cuban Championship | B53 Sicilian |
6. R Vera vs O Perez Mitjans |
 | 0-1 | 25 | 2007 | Cuban Championship | D09 Queen's Gambit Declined, Albin Counter Gambit, 5.g3 |
7. A Abreu Delgado vs O Perez Mitjans |
| 1-0 | 72 | 2007 | Cuban Championship | B78 Sicilian, Dragon, Yugoslav Attack, 10.castle long |
8. O Perez Mitjans vs O Almeida Quintana |
| ½-½ | 72 | 2007 | Cuban Championship | B32 Sicilian |
9. L S Martinez Duany vs O Perez Mitjans |
| 0-1 | 71 | 2007 | Cuban Championship | B50 Sicilian |
10. O Perez Mitjans vs Y Gonzalez Vidal |
| 0-1 | 33 | 2007 | Cuban Championship | B10 Caro-Kann |
11. O Perez Mitjans vs E Espinosa |
| 0-1 | 15 | 2007 | Cuban Championship | C29 Vienna Gambit |
12. M Gongora vs O Perez Mitjans |
| ½-½ | 68 | 2007 | Cuban Championship | B76 Sicilian, Dragon, Yugoslav Attack |
13. O Perez Mitjans vs H Blanco Ronquillo |
 | 1-0 | 25 | 2007 | Cuban Championship | C86 Ruy Lopez, Worrall Attack |
14. G Lebredo Zaragoitia vs O Perez Mitjans |
| 1-0 | 32 | 2007 | Capablanca mem op 42nd | A57 Benko Gambit |
15. O Perez Mitjans vs O Linares Napoles |
| 1-0 | 55 | 2007 | Capablanca mem op 42nd | C22 Center Game |
16. O Ruiz Sanchez vs O Perez Mitjans |
| 1-0 | 54 | 2007 | Capablanca mem op 42nd | B54 Sicilian |
17. O Perez Mitjans vs Y Marrero Lopez |
| 1-0 | 31 | 2007 | Capablanca mem op 42nd | C29 Vienna Gambit |
18. J A Guillen Ramirez vs O Perez Mitjans |
| 0-1 | 32 | 2007 | Capablanca mem op 42nd | B27 Sicilian |
19. O Perez Mitjans vs I R Ortiz Suarez |
| 0-1 | 41 | 2007 | Capablanca mem op 42nd | B50 Sicilian |
20. P Morales vs O Perez Mitjans |
| 0-1 | 63 | 2007 | Capablanca mem op 42nd | B27 Sicilian |
21. O Perez Mitjans vs L L Aguero Jimenez |
| ½-½ | 45 | 2007 | Capablanca mem op 42nd | B10 Caro-Kann |
22. A Fernandez Cardoso vs O Perez Mitjans |
| 1-0 | 36 | 2007 | Capablanca mem op 42nd | B76 Sicilian, Dragon, Yugoslav Attack |
23. O Perez Mitjans vs O Soto Paez |
| 0-1 | 58 | 2007 | Capablanca mem op 42nd | B42 Sicilian, Kan |
24. O Perez Mitjans vs J Ridameya Tatche |
| 1-0 | 23 | 2007 | Barbera del Valles op-A 30th | C22 Center Game |
25. C Burgos Figueroa vs O Perez Mitjans |
| 0-1 | 40 | 2007 | Barbera del Valles op-A 30th | A36 English |