| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 1. H Speck vs C Pantaleoni |
| 0-1 | 23 | 1985 | Lugano Open | D00 Queen's Pawn Game |
| 2. Hort vs H Speck |
| 1-0 | 38 | 1986 | Mendrisio op | B03 Alekhine's Defense |
| 3. H Speck vs A Martorelli |
| 0-1 | 24 | 1986 | Mendrisio op | D00 Queen's Pawn Game |
| 4. H Speck vs M Sibarevic |
| 0-1 | 40 | 1988 | Mendrisio op | D01 Richter-Veresov Attack |
| 5. H Speck vs Z Balenovic |
| 0-1 | 52 | 1988 | Mendrisio op | B08 Pirc, Classical |
| 6. P Vezzosi vs H Speck |
| 0-1 | 50 | 1988 | Mendrisio op | B04 Alekhine's Defense, Modern |
| 7. G Rosa vs H Speck |
| 0-1 | 36 | 1988 | Mendrisio op | A02 Bird's Opening |
| 8. H Speck vs M A Silva Morales |
| 0-1 | 30 | 1988 | Zuerich op | D00 Queen's Pawn Game |
| 9. W Cazzaniga vs H Speck |
| 0-1 | 37 | 1988 | Mendrisio op | A80 Dutch |
| 10. H Speck vs E Pozzi |
| ½-½ | 50 | 1988 | Mendrisio op | A45 Queen's Pawn Game |
| 11. H Speck vs D Barlov |
| 0-1 | 43 | 1989 | Mendrisio op | B08 Pirc, Classical |
| 12. H Speck vs B Filipovic |
| 0-1 | 62 | 1989 | Zuerich op | D00 Queen's Pawn Game |
| 13. D Leuba vs H Speck |
| 0-1 | 57 | 1989 | Mendrisio op | A80 Dutch |
| 14. A Unterfrauner vs H Speck |
| 0-1 | 38 | 1989 | Zuerich op | A10 English |
| 15. H Speck vs D Dutoit |
| 0-1 | 58 | 1989 | Mendrisio op | E32 Nimzo-Indian, Classical |
| 16. R Mollet vs H Speck |
| ½-½ | 27 | 1989 | Mendrisio op | B03 Alekhine's Defense |
| 17. H Speck vs J Laengl |
| 0-1 | 39 | 1990 | Zuerich op | D00 Queen's Pawn Game |
| 18. B Kamber vs H Speck |
| 1-0 | 36 | 1991 | Chiasso op | B05 Alekhine's Defense, Modern |
| 19. H Speck vs A Huss |
| 0-1 | 40 | 1991 | Zuerich op | E34 Nimzo-Indian, Classical, Noa Variation |
| 20. F Liardet vs H Speck |
| 1-0 | 19 | 1991 | Zuerich op | A80 Dutch |
| 21. H Speck vs D Contin |
| 0-1 | 28 | 1991 | Chiasso op | C00 French Defense |
| 22. Gheorghiu vs H Speck |
| ½-½ | 45 | 1992 | SUI-chI op | A81 Dutch |
| 23. M Sher vs H Speck |
| 0-1 | 16 | 1992 | SUI-chI op | A84 Dutch |
| 24. H Speck vs C Stolz |
| ½-½ | 64 | 1992 | Liechtenstein op | D00 Queen's Pawn Game |
| 25. H Speck vs T Plachetka |
| 1-0 | 27 | 1992 | Zuerich op | B84 Sicilian, Scheveningen |
Kibitzing
