| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 26. J C Alvarez Marquez vs A Pridorozhni |
| 1-0 | 36 | 1999 | World Championship U18 | D43 Queen's Gambit Declined Semi-Slav |
| 27. A Horvath vs J C Alvarez Marquez |
| 1-0 | 22 | 1999 | World Championship U18 | B95 Sicilian, Najdorf, 6...e6 |
| 28. J C Alvarez Marquez vs Buhmann |
| 1-0 | 42 | 1999 | World Championship U18 | D27 Queen's Gambit Accepted, Classical |
| 29. Potkin vs J C Alvarez Marquez |
| 0-1 | 35 | 1999 | World Championship U18 | B22 Sicilian, Alapin |
| 30. J C Alvarez Marquez vs M Stryjecki |
| 0-1 | 38 | 1999 | World Championship U18 | E61 King's Indian |
| 31. A A Zaremba vs J C Alvarez Marquez |
| 1-0 | 49 | 1999 | World Championship U18 | B96 Sicilian, Najdorf |
| 32. G Vescovi vs J C Alvarez Marquez |
| 1-0 | 24 | 2000 | 6th Pan American Team Championship | B90 Sicilian, Najdorf |
| 33. D Izquierdo vs J C Alvarez Marquez |
| 1-0 | 40 | 2000 | 6th Pan American Team Championship | A07 King's Indian Attack |
| 34. J C Alvarez Marquez vs Dominguez Perez |
| 0-1 | 33 | 2000 | 6th Pan American Team Championship | D45 Queen's Gambit Declined Semi-Slav |
| 35. J C Alvarez Marquez vs Tiviakov |
| 0-1 | 29 | 2000 | Istanbul Olympiad | E48 Nimzo-Indian, 4.e3 O-O 5.Bd3 d5 |
| 36. N Mitkov vs J C Alvarez Marquez |
| 1-0 | 22 | 2000 | Istanbul Olympiad | B23 Sicilian, Closed |
| 37. J E Ostos vs J C Alvarez Marquez |
| ½-½ | 11 | 2000 | VEN-ch Maxima | B95 Sicilian, Najdorf, 6...e6 |
| 38. F Doettling vs J C Alvarez Marquez |
| 1-0 | 48 | 2001 | Elbow Beach Club GM-B | E94 King's Indian, Orthodox |
| 39. J C Alvarez Marquez vs Y Teplitsky |
| ½-½ | 49 | 2001 | Elbow Beach Club GMB | E41 Nimzo-Indian |
| 40. P Charbonneau vs J C Alvarez Marquez |
| 0-1 | 49 | 2001 | Elbow Beach Club GMB | B22 Sicilian, Alapin |
| 41. J C Alvarez Marquez vs T Thorhallsson |
| 0-1 | 33 | 2001 | Elbow Beach Club GM-B | D27 Queen's Gambit Accepted, Classical |
| 42. J C Alvarez Marquez vs D Tyomkin |
| ½-½ | 52 | 2001 | Elbow Beach Club GM-B | D47 Queen's Gambit Declined Semi-Slav |
| 43. J C Alvarez Marquez vs H J Weyer |
| 1-0 | 41 | 2001 | Curacao | D58 Queen's Gambit Declined, Tartakower (Makagonov-Bondarevsky) Syst |
| 44. Timman vs J C Alvarez Marquez |
 | 1-0 | 33 | 2001 | Curacao | B90 Sicilian, Najdorf |
| 45. J C Alvarez Marquez vs H Neumann |
| 1-0 | 80 | 2001 | Curacao | E54 Nimzo-Indian, 4.e3, Gligoric System |
| 46. J C Alvarez Marquez vs T Krivousas |
| ½-½ | 17 | 2001 | World Junior Championship | E41 Nimzo-Indian |
| 47. R Zenklusen vs J C Alvarez Marquez |
| 0-1 | 25 | 2001 | World Junior Championship | B06 Robatsch |
| 48. J C Alvarez Marquez vs L Cernousek |
| ½-½ | 10 | 2001 | World Junior Championship | E61 King's Indian |
| 49. S Du vs J C Alvarez Marquez |
| ½-½ | 56 | 2001 | World Junior Championship | A36 English |
| 50. J C Alvarez Marquez vs D Hersvik |
| 0-1 | 34 | 2001 | World Junior Championship | D18 Queen's Gambit Declined Slav, Dutch |
Kibitzing
