| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. Wang Yue vs M Llaneza-Vega |
| 1-0 | 69 |
1997 |
Wch U10 | A41 Queen's Pawn Game (with ...d6) |
| 2. M Llaneza-Vega vs F J Fernandez Martin |
| 0-1 | 30 |
2000 |
Asturias-chT Preferente | B21 Sicilian, 2.f4 and 2.d4 |
| 3. M Llaneza-Vega vs V Sergeev |
| 0-1 | 50 |
2001 |
Valoz Cup | B05 Alekhine's Defense, Modern |
| 4. J Jirka vs M Llaneza-Vega |
| 1-0 | 18 |
2001 |
Valoz Cup | E62 King's Indian, Fianchetto |
| 5. N V Pedersen vs M Llaneza-Vega |
| 1-0 | 27 |
2001 |
Valoz Cup | B22 Sicilian, Alapin |
| 6. R Hardarson vs M Llaneza-Vega |
| 1-0 | 28 |
2001 |
Valoz Cup | B32 Sicilian |
| 7. M Llaneza-Vega vs M Calzetta |
| 1-0 | 34 |
2001 |
Valoz Cup | B23 Sicilian, Closed |
| 8. M Llaneza-Vega vs F Lindgren |
| ½-½ | 45 |
2001 |
Valoz Cup | B33 Sicilian |
| 9. M Llaneza-Vega vs S Estremera Panos |
| 0-1 | 24 |
2001 |
Valoz Cup | B57 Sicilian |
| 10. M Llaneza-Vega vs J Recuero Guerra |
| 1-0 | 31 |
2001 |
Asturias-ch U14 | B40 Sicilian |
| 11. M Llaneza-Vega vs P Simacek |
| 0-1 | 39 |
2001 |
Valoz Cup | B06 Robatsch |
| 12. G Livshits vs M Llaneza-Vega |
| 1-0 | 73 |
2001 |
Valoz Cup | B45 Sicilian, Taimanov |
| 13. V Dambrauskas vs M Llaneza-Vega |
| 1-0 | 52 |
2001 |
Valoz Cup | E62 King's Indian, Fianchetto |
| 14. M Llaneza-Vega vs P Bazant |
| 0-1 | 55 |
2001 |
Valoz Cup | C45 Scotch Game |
| 15. R Mamedov vs M Llaneza-Vega |
| 1-0 | 58 |
2001 |
WYB14 | B33 Sicilian |
| 16. M Llaneza-Vega vs C Foisor |
| 0-1 | 54 |
2003 |
EU-ch 4th, Women | C15 French, Winawer |
| 17. T Kosintseva vs M Llaneza-Vega |
 | 1-0 | 47 |
2003 |
EU-ch 4th, Women | B22 Sicilian, Alapin |
| 18. J Stocek vs M Llaneza-Vega |
| 1-0 | 30 |
2003 |
Hostafrancs op 5th | E00 Queen's Pawn Game |
| 19. M Llaneza-Vega vs R Brosa Alvarez |
| 1-0 | 34 |
2004 |
Asturias-ch | C12 French, McCutcheon |
| 20. M Llaneza-Vega vs M Garcia Gonzalez |
| 1-0 | 20 |
2006 |
ch-ESP Abierto | B01 Scandinavian |
| 21. Galego vs M Llaneza-Vega |
| ½-½ | 26 |
2007 |
2nd Soller GM | B29 Sicilian, Nimzovich-Rubinstein |
| 22. M Llaneza-Vega vs Negi |
 | ½-½ | 52 |
2007 |
World Junior Championship | B90 Sicilian, Najdorf |
| 23. M Llaneza-Vega vs Deepan Chakkravarthy J |
| 0-1 | 33 |
2007 |
World Junior Championship | B90 Sicilian, Najdorf |
| 24. I Salgado Lopez vs M Llaneza-Vega |
| 0-1 | 48 |
2007 |
2nd Soller GM | D07 Queen's Gambit Declined, Chigorin Defense |
| 25. M Llaneza-Vega vs S Feller |
| 1-0 | 79 |
2007 |
World Junior Championship | B01 Scandinavian |