| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. N Mayorga vs R Monier |
| 1-0 | 42 |
2005 |
American Continental Championship | C45 Scotch Game |
| 2. D Fernandez vs N Mayorga |
| 1-0 | 31 |
2005 |
American Continental Championship | A30 English, Symmetrical |
| 3. D Gurevich vs N Mayorga |
| 1-0 | 29 |
2005 |
American Continental Championship | A31 English, Symmetrical, Benoni Formation |
| 4. N Mayorga vs L Rojas |
| ½-½ | 54 |
2005 |
American Continental Championship | C02 French, Advance |
| 5. N Mayorga vs C Dolezal |
| ½-½ | 32 |
2005 |
American Continental Championship | B00 Uncommon King's Pawn Opening |
| 6. N Mayorga vs E Real de Azua |
| 1-0 | 37 |
2005 |
American Continental | B57 Sicilian |
| 7. Y Quesada Perez vs N Mayorga |
| 1-0 | 28 |
2005 |
American Continental Championship | B80 Sicilian, Scheveningen |
| 8. H Contreras vs N Mayorga |
| 0-1 | 47 |
2005 |
American Continental | B80 Sicilian, Scheveningen |
| 9. N Mayorga vs E Cordova |
 | 0-1 | 38 |
2007 |
III South American Ch U20 | B31 Sicilian, Rossolimo Variation |
| 10. J Blit vs N Mayorga |
| ½-½ | 21 |
2007 |
III South American Ch U20 | A34 English, Symmetrical |
| 11. N Mayorga vs A Diamant |
| ½-½ | 19 |
2007 |
III South American Ch U20 | B46 Sicilian, Taimanov Variation |
| 12. A Fier vs N Mayorga |
| 1-0 | 24 |
2007 |
III South American Ch U20 | A45 Queen's Pawn Game |
| 13. D Lemos vs N Mayorga |
| 0-1 | 42 |
2007 |
III South American Ch U20 | A40 Queen's Pawn Game |
| 14. D Lemos vs N Mayorga |
| 1-0 | 66 |
2008 |
Semi Arg Bs. As. | A46 Queen's Pawn Game |
| 15. N Mayorga vs E Scarella |
| ½-½ | 39 |
2008 |
Liga Nacional Ajedrez | C98 Ruy Lopez, Closed, Chigorin |
| 16. C Geloso vs N Mayorga |
| 0-1 | 37 |
2008 |
Liga Nacional Ajedrez | A07 King's Indian Attack |
| 17. N Mayorga vs S Iermito |
| ½-½ | 36 |
2008 |
Liga Nacional Ajedrez | E97 King's Indian |
| 18. N Mayorga vs G Calderon Fernandez |
| 1-0 | 37 |
2008 |
Liga Nacional Ajedrez | D15 Queen's Gambit Declined Slav |