| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 1. J A Guillen Ramirez vs Y Ramsingh |
| ½-½ | 30 | 1985 | World Junior Championship | B83 Sicilian |
| 2. O Oduko vs J A Guillen Ramirez |
| 0-1 | 50 | 1985 | World Junior Championship | B32 Sicilian |
| 3. Blatny vs J A Guillen Ramirez |
| 1-0 | 26 | 1985 | World Junior Championship | A07 King's Indian Attack |
| 4. J A Guillen Ramirez vs R Martin del Campo |
| ½-½ | 25 | 1985 | World Junior Championship | B30 Sicilian |
| 5. F Maeser vs J A Guillen Ramirez |
| 0-1 | 25 | 1985 | World Junior Championship | D05 Queen's Pawn Game |
| 6. J A Guillen Ramirez vs M Godena |
| ½-½ | 42 | 1985 | World Junior Championship | C64 Ruy Lopez, Classical |
| 7. E Rojas vs J A Guillen Ramirez |
| 1-0 | 39 | 1985 | World Junior Championship | A14 English |
| 8. M Akil vs J A Guillen Ramirez |
| ½-½ | 40 | 1985 | World Junior Championship | E11 Bogo-Indian Defense |
| 9. J A Guillen Ramirez vs F van Hasselt |
| 1-0 | 37 | 1985 | World Junior Championship | C69 Ruy Lopez, Exchange, Gligoric Variation |
| 10. J A Guillen Ramirez vs R Gunawan |
| ½-½ | 25 | 1985 | World Junior Championship | B51 Sicilian, Canal-Sokolsky (Rossolimo) Attack |
| 11. C Navrotescu vs J A Guillen Ramirez |
 | ½-½ | 60 | 1985 | World Junior Championship | D31 Queen's Gambit Declined |
| 12. J A Guillen Ramirez vs A Jassim |
| ½-½ | 29 | 1985 | World Junior Championship | B76 Sicilian, Dragon, Yugoslav Attack |
| 13. J A Guillen Ramirez vs D Bwanika |
| ½-½ | 16 | 1985 | World Junior Championship | C96 Ruy Lopez, Closed |
| 14. T Dao vs J A Guillen Ramirez |
| 1-0 | 46 | 2000 | Istanbul Olympiad | A52 Budapest Gambit |
| 15. M Erdogdu vs J A Guillen Ramirez |
| 0-1 | 38 | 2000 | Istanbul Olympiad | B45 Sicilian, Taimanov |
| 16. C Burgos Figueroa vs J A Guillen Ramirez |
| ½-½ | 30 | 2001 | Managua Zonal | B40 Sicilian |
| 17. J A Guillen Ramirez vs J Montecinos |
| 1-0 | 51 | 2001 | Managua Zonal | B46 Sicilian, Taimanov Variation |
| 18. B Pineda vs J A Guillen Ramirez |
| 0-1 | 40 | 2001 | Managua Zonal | A21 English |
| 19. J A Guillen Ramirez vs H Leyva |
| ½-½ | 55 | 2001 | Managua Zonal | B02 Alekhine's Defense |
| 20. C Juarez Flores vs J A Guillen Ramirez |
| 1-0 | 61 | 2001 | Managua Zonal | B45 Sicilian, Taimanov |
| 21. J A Guillen Ramirez vs R Pilarte |
| 1-0 | 45 | 2001 | Managua Zonal | B44 Sicilian |
| 22. J A Guillen Ramirez vs S Minero Pineda |
| ½-½ | 40 | 2001 | Managua Zonal | A03 Bird's Opening |
| 23. C Reyes Najera vs J A Guillen Ramirez |
| ½-½ | 9 | 2001 | Managua Zonal | A22 English |
| 24. D Umana vs J A Guillen Ramirez |
| 0-1 | 34 | 2003 | San Salvador Open | B45 Sicilian, Taimanov |
| 25. J A Guillen Ramirez vs G E Juarez Flores |
| 1-0 | 38 | 2003 | San Salvador Open | A01 Nimzovich-Larsen Attack |
Kibitzing
