| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 1. C Pieper-Emden vs H Hermesmann |
| 1-0 | 30 | 1986 | NRW-ch | E90 King's Indian |
| 2. H Hermesmann vs Smejkal |
| ½-½ | 50 | 1987 | Bundesliga 1987/88 | B06 Robatsch |
| 3. R Borngaesser vs H Hermesmann |
| 1-0 | 41 | 1987 | Dortmund Open | A01 Nimzovich-Larsen Attack |
| 4. K Rapatinski vs H Hermesmann |
| 0-1 | 7 | 1987 | Dortmund Open | B50 Sicilian |
| 5. Chandler vs H Hermesmann |
| 1-0 | 70 | 1988 | Bundesliga 1987/88 | B56 Sicilian |
| 6. H Hermesmann vs Miles |
| 1-0 | 42 | 1988 | Bundesliga 1987/88 | A56 Benoni Defense |
| 7. H Hermesmann vs Short |
| 0-1 | 36 | 1988 | Bundesliga 1987/88 | E43 Nimzo-Indian, Fischer Variation |
| 8. Heine vs H Hermesmann |
| 1-0 | 54 | 1988 | Dortmund Open | B55 Sicilian, Prins Variation, Venice Attack |
| 9. Miles vs H Hermesmann |
 | 1-0 | 19 | 1989 | BL2-W 8889 ;BL2 | A05 Reti Opening |
| 10. H Hermesmann vs C Kamp |
| 1-0 | 39 | 1992 | BL2-W 9192 | D31 Queen's Gambit Declined |
| 11. I Ibragimov vs H Hermesmann |
| 1-0 | 49 | 1992 | Dortmund Open-A | A07 King's Indian Attack |
| 12. H Hermesmann vs S Roehrich |
| 1-0 | 35 | 1992 | Dortmund Open-A | A57 Benko Gambit |
| 13. Y Piskov vs H Hermesmann |
| 1-0 | 34 | 1992 | Dortmund Open-A | E77 King's Indian |
| 14. H Hermesmann vs J Siemers |
| 1-0 | 35 | 1992 | Dortmund Open-A | E88 King's Indian, Samisch, Orthodox, 7.d5 c6 |
| 15. L Gutman vs H Hermesmann |
| ½-½ | 63 | 1992 | Dortmund Open-A | E71 King's Indian, Makagonov System (5.h3) |
| 16. H Hermesmann vs E Prandstetter |
| ½-½ | 69 | 1992 | Dortmund Open-A | E48 Nimzo-Indian, 4.e3 O-O 5.Bd3 d5 |
| 17. R Zysk vs H Hermesmann |
| 1-0 | 33 | 1992 | Dortmund Open-A | E68 King's Indian, Fianchetto, Classical Variation, 8.e4 |
| 18. H Hermesmann vs ChessMachine |
| ½-½ | 80 | 1992 | Dortmund Open-A | D60 Queen's Gambit Declined, Orthodox Defense |
| 19. S Telljohann vs H Hermesmann |
| ½-½ | 52 | 1992 | Dortmund Open-A | A26 English |
| 20. W Vandrey vs H Hermesmann |
| ½-½ | 50 | 1992 | Dortmund Open-A | A48 King's Indian |
| 21. H Hermesmann vs S Berndt |
| ½-½ | 36 | 1992 | Dortmund Open-A | D86 Grunfeld, Exchange |
| 22. H Hermesmann vs W Schmidt |
| 1-0 | 40 | 1992 | Hamburg op | A42 Modern Defense, Averbakh System |
| 23. G Siegel vs H Hermesmann |
| 1-0 | 31 | 1993 | Bundesliga 9394 | A81 Dutch |
| 24. H Hermesmann vs W Von Alvensleben |
| 1-0 | 40 | 1993 | Wichern Open | E70 King's Indian |
| 25. F Voelzke vs H Hermesmann |
| 1-0 | 48 | 1993 | Wichern Open | A07 King's Indian Attack |
Kibitzing
