| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 26. J A Guillen Ramirez vs J Juarez Flores |
| ½-½ | 8 | 2003 | San Salvador Open | A01 Nimzovich-Larsen Attack |
| 27. Mikhalevski vs J A Guillen Ramirez |
| 1-0 | 36 | 2003 | San Salvador Open | A90 Dutch |
| 28. J A Guillen Ramirez vs R A Juarez Flores |
| 0-1 | 67 | 2003 | San Salvador Open | B06 Robatsch |
| 29. Barsov vs J A Guillen Ramirez |
| 1-0 | 25 | 2004 | Calvia Olympiad | E21 Nimzo-Indian, Three Knights |
| 30. D Sharavdorj vs J A Guillen Ramirez |
| 1-0 | 52 | 2004 | Calvia Olympiad | A90 Dutch |
| 31. M Mannhart vs J A Guillen Ramirez |
| ½-½ | 52 | 2004 | Calvia Olympiad | A00 Uncommon Opening |
| 32. J A Guillen Ramirez vs R Singh |
 | 1-0 | 26 | 2004 | Calvia Olympiad | B93 Sicilian, Najdorf, 6.f4 |
| 33. A A Najjar vs J A Guillen Ramirez |
| ½-½ | 53 | 2004 | Calvia Olympiad | A48 King's Indian |
| 34. J A Guillen Ramirez vs E Ermenkov |
| ½-½ | 59 | 2004 | Calvia Olympiad | E81 King's Indian, Samisch |
| 35. J A Guillen Ramirez vs P van Hoolandt |
| ½-½ | 80 | 2004 | Calvia Olympiad | C67 Ruy Lopez |
| 36. I Njobvu vs J A Guillen Ramirez |
| 0-1 | 51 | 2004 | Calvia Olympiad | E62 King's Indian, Fianchetto |
| 37. J A Guillen Ramirez vs S Khamdamov |
| 0-1 | 34 | 2004 | Calvia Olympiad | E77 King's Indian |
| 38. B L Shrestha vs J A Guillen Ramirez |
| ½-½ | 44 | 2004 | Calvia Olympiad | B20 Sicilian |
| 39. J A Guillen Ramirez vs R Matoewi |
| ½-½ | 43 | 2004 | Calvia Olympiad | B31 Sicilian, Rossolimo Variation |
| 40. J A Guillen Ramirez vs G Mittelman |
| 0-1 | 43 | 2005 | Internacional de Alajuela | E92 King's Indian |
| 41. J A Guillen Ramirez vs A Ramirez Alvarez |
 | ½-½ | 27 | 2005 | Internacional Alajuela | B30 Sicilian |
| 42. Mecking vs J A Guillen Ramirez |
| 1-0 | 26 | 2006 | Iberoamericano D | D41 Queen's Gambit Declined, Semi-Tarrasch |
| 43. J A Guillen Ramirez vs K Mekhitarian |
| 0-1 | 41 | 2006 | Iberoamericano A/D | E15 Queen's Indian |
| 44. J A Guillen Ramirez vs A Perera Casinas |
| ½-½ | 17 | 2006 | Iberoamericano A/D | A49 King's Indian, Fianchetto without c4 |
| 45. R Vera vs J A Guillen Ramirez |
| 1-0 | 61 | 2006 | Iberoamericano A/D | E39 Nimzo-Indian, Classical, Pirc Variation |
| 46. J A Guillen Ramirez vs D Izquierdo |
| ½-½ | 48 | 2006 | Iberoamericano D | B13 Caro-Kann, Exchange |
| 47. A Fernandes vs J A Guillen Ramirez |
| ½-½ | 31 | 2006 | Iberoamericano D | A45 Queen's Pawn Game |
| 48. J A Guillen Ramirez vs R Prasca Sosa |
| 0-1 | 47 | 2006 | Iberoamericano D | D31 Queen's Gambit Declined |
| 49. C S Matamoros Franco vs J A Guillen Ramirez |
| 1-0 | 47 | 2006 | Iberoamericano D | A25 English |
| 50. M Narciso Dublan vs J A Guillen Ramirez |
| 1-0 | 36 | 2006 | Iberoamerican-ch Schev-B 1st | B23 Sicilian, Closed |
Kibitzing
