| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 1. D Ballesteros Gonzalez vs H Herraiz Hidalgo |
| 1-0 | 26 | 1992 | Spanish Championship | E97 King's Indian |
| 2. H Herraiz Hidalgo vs D Roiz Baztan |
| ½-½ | 62 | 1992 | Spanish Championship | E80 King's Indian, Samisch Variation |
| 3. J Rojas Sola vs H Herraiz Hidalgo |
 | 0-1 | 24 | 1995 | ESP-chTa | A00 Uncommon Opening |
| 4. H Herraiz Hidalgo vs Tukmakov |
| ½-½ | 33 | 1995 | Linares Anibal op 2nd | E29 Nimzo-Indian, Samisch |
| 5. H Herraiz Hidalgo vs G Vescovi |
| 1-0 | 34 | 1996 | Wch U18 | A58 Benko Gambit |
| 6. F Sideifzade vs H Herraiz Hidalgo |
| ½-½ | 60 | 1996 | Baku Cup | E66 King's Indian, Fianchetto, Yugoslav Panno |
| 7. H Herraiz Hidalgo vs B Kelly |
| ½-½ | 48 | 1996 | Wch U18 | D45 Queen's Gambit Declined Semi-Slav |
| 8. S Cacho Reigadas vs H Herraiz Hidalgo |
| 0-1 | 38 | 1997 | ESP-ch | D70 Neo-Grunfeld Defense |
| 9. M Narciso Dublan vs H Herraiz Hidalgo |
| 1-0 | 38 | 1997 | ESP-ch | A16 English |
| 10. M De Wachter vs H Herraiz Hidalgo |
| ½-½ | 15 | 1998 | World Junior Championship | E91 King's Indian |
| 11. H Herraiz Hidalgo vs K Sauravh |
| ½-½ | 35 | 1998 | World Junior Championship | A42 Modern Defense, Averbakh System |
| 12. H Groetz vs H Herraiz Hidalgo |
| ½-½ | 27 | 1998 | World Junior Championship | C05 French, Tarrasch |
| 13. H Herraiz Hidalgo vs A Roghani |
| 1-0 | 21 | 1998 | World Junior Championship | E39 Nimzo-Indian, Classical, Pirc Variation |
| 14. P Blehm vs H Herraiz Hidalgo |
| ½-½ | 19 | 1998 | World Junior Championship | C11 French |
| 15. H Herraiz Hidalgo vs B Socko |
| 0-1 | 57 | 1998 | World Junior Championship | A49 King's Indian, Fianchetto without c4 |
| 16. R Dableo vs H Herraiz Hidalgo |
| 0-1 | 60 | 1998 | World Junior Championship | A16 English |
| 17. H Herraiz Hidalgo vs Harikrishna |
| 0-1 | 44 | 1998 | World Junior Championship | A40 Queen's Pawn Game |
| 18. S Kidambi vs H Herraiz Hidalgo |
| ½-½ | 36 | 1998 | World Junior Championship | E91 King's Indian |
| 19. H Herraiz Hidalgo vs S Williams |
| 1-0 | 43 | 1998 | World Junior Championship | A96 Dutch, Classical Variation |
| 20. N Das vs H Herraiz Hidalgo |
| 1-0 | 36 | 1998 | World Junior Championship | A07 King's Indian Attack |
| 21. V Kulkarni vs H Herraiz Hidalgo |
| 0-1 | 31 | 1998 | World Junior Championship | C11 French |
| 22. J Blanco Sanjuan vs H Herraiz Hidalgo |
| 0-1 | 28 | 1999 | Benasque Open | A49 King's Indian, Fianchetto without c4 |
| 23. H Herraiz Hidalgo vs P Martinez Rodriguez |
| 1-0 | 21 | 1999 | Benasque Open | E86 King's Indian, Samisch, Orthodox, 7.Nge2 c6 |
| 24. K Kulaots vs H Herraiz Hidalgo |
| ½-½ | 22 | 1999 | Benasque Open | C11 French |
| 25. H Herraiz Hidalgo vs R Pogorelov |
| ½-½ | 68 | 1999 | Benasque Open | A00 Uncommon Opening |
Kibitzing
