| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 1. M Apicella vs A Montalvo |
| 1-0 | 33 | 1996 | Yerevan Olympiad | B32 Sicilian |
| 2. J Norri vs A Montalvo |
| ½-½ | 28 | 1996 | Yerevan Olympiad | D53 Queen's Gambit Declined |
| 3. A Montalvo vs P L Chambule |
| 1-0 | 41 | 1996 | Yerevan Olympiad | D13 Queen's Gambit Declined Slav, Exchange Variation |
| 4. A Montalvo vs A Baburin |
| 0-1 | 50 | 1996 | Yerevan Olympiad | D22 Queen's Gambit Accepted |
| 5. D Cummings vs A Montalvo |
| ½-½ | 44 | 1996 | Yerevan Olympiad | E11 Bogo-Indian Defense |
| 6. A Montalvo vs Blatny |
 | 0-1 | 27 | 1997 | New York Open | A09 Reti Opening |
| 7. J Sammour-Hasbun vs A Montalvo |
| 1-0 | 30 | 1997 | Bermuda IM | D37 Queen's Gambit Declined |
| 8. D Ippolito vs A Montalvo |
| 1-0 | 32 | 1997 | Bermuda IM | E64 King's Indian, Fianchetto, Yugoslav System |
| 9. A Montalvo vs J Mann de Toledo |
| ½-½ | 23 | 1997 | Bermuda IM | E09 Catalan, Closed |
| 10. A Montalvo vs J Elbilia |
| ½-½ | 30 | 1997 | Bermuda IM | E00 Queen's Pawn Game |
| 11. A Montalvo vs P Saint-Amand |
| 1-0 | 57 | 1997 | Bermuda IM | B21 Sicilian, 2.f4 and 2.d4 |
| 12. A Montalvo vs Kudrin |
| 0-1 | 42 | 1997 | Bermuda IM | E47 Nimzo-Indian, 4.e3 O-O 5.Bd3 |
| 13. W J Donaldson vs A Montalvo |
| 1-0 | 41 | 1997 | Bermuda IM | A04 Reti Opening |
| 14. K Grosar vs A Montalvo |
| 0-1 | 23 | 1997 | Bermuda IM | B12 Caro-Kann Defense |
| 15. A Montalvo vs N Faulks |
| 1-0 | 40 | 1997 | Bermuda IM | B22 Sicilian, Alapin |
| 16. E Perelshteyn vs A Montalvo |
| 1-0 | 34 | 1997 | Bermuda IM | B23 Sicilian, Closed |
| 17. A Montalvo vs J E Ostos |
| 1-0 | 53 | 2000 | Valencia sub zt 2.3.5 | A56 Benoni Defense |
| 18. H Marko vs A Montalvo |
| 0-1 | 42 | 2000 | Istanbul Olympiad | B13 Caro-Kann, Exchange |
| 19. A Montalvo vs J N Sales |
| 0-1 | 27 | 2001 | Santo Domingo | D31 Queen's Gambit Declined |
| 20. H Leyva vs A Montalvo |
| 1-0 | 40 | 2001 | I American Continental | D43 Queen's Gambit Declined Semi-Slav |
| 21. A Montalvo vs A Cabrera |
| 0-1 | 37 | 2001 | I American Continental | E81 King's Indian, Samisch |
| 22. S C Mazariegos vs A Montalvo |
| 0-1 | 35 | 2001 | I American Continental | A43 Old Benoni |
| 23. A Montalvo vs R Araque |
| 0-1 | 38 | 2001 | I American Continental | B01 Scandinavian |
| 24. R Barros vs A Montalvo |
| 1-0 | 47 | 2001 | I American Continental | E90 King's Indian |
| 25. B Ostenstad vs A Montalvo |
| 1-0 | 33 | 2004 | Calvia Olympiad | A20 English |
Kibitzing
