| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 1. H Duenhaupt vs W Elm |
| 0-1 | 31 | 1946 | Bad Harzburg | D44 Queen's Gambit Declined Semi-Slav |
| 2. H Duenhaupt vs H Heinicke |
| 1-0 | 23 | 1946 | Bad Harzburg | D80 Grunfeld |
| 3. J Huebener vs H Duenhaupt |
| 0-1 | 36 | 1946 | Bad Harzburg | D18 Queen's Gambit Declined Slav, Dutch |
| 4. H Duenhaupt vs C Toerber |
| 0-1 | 25 | 1946 | Bad Harzburg | B30 Sicilian |
| 5. H Lehmann vs H Duenhaupt |
| 0-1 | 49 | 1946 | Bad Harzburg | D45 Queen's Gambit Declined Semi-Slav |
| 6. H Duenhaupt vs W Lange |
| ½-½ | 56 | 1946 | Bad Harzburg | B10 Caro-Kann |
| 7. Saemisch vs H Duenhaupt |
| 1-0 | 46 | 1946 | Bad Harzburg | C91 Ruy Lopez, Closed |
| 8. H Duenhaupt vs H Meynecke |
| 1-0 | 28 | 1946 | Bad Harzburg | A43 Old Benoni |
| 9. G Moehler vs H Duenhaupt |
| ½-½ | 53 | 1946 | Bad Harzburg | A47 Queen's Indian |
| 10. C Ahues vs H Duenhaupt |
| 1-0 | 34 | 1946 | Bad Harzburg | D00 Queen's Pawn Game |
| 11. L Rellstab vs H Duenhaupt |
 | 1-0 | 31 | 1946 | Bad Harzburg | B74 Sicilian, Dragon, Classical |
| 12. H Duenhaupt vs A Malitzki |
| 1-0 | 45 | 1947 | GER-chB I | A80 Dutch |
| 13. H Heemsoth vs H Duenhaupt |
| 1-0 | 46 | 1951 | 2.DeutscheFSM,Endrunde,-54 | B45 Sicilian, Taimanov |
| 14. V Zagorovsky vs H Duenhaupt |
| ½-½ | 37 | 1965 | olm5 fin B1 corr6568 | B83 Sicilian |
| 15. H Duenhaupt vs J Snajdr |
| ½-½ | 23 | 1965 | olm5 fin B1 corr6568 | A07 King's Indian Attack |
| 16. H Rittner vs H Duenhaupt |
| ½-½ | 66 | 1965 | olm5 fin B1 corr6568 | B25 Sicilian, Closed |
| 17. H Duenhaupt vs V Kornfilt |
| ½-½ | 57 | 1965 | olm5 fin B1 corr6568 | A07 King's Indian Attack |
| 18. S Bernstein vs H Duenhaupt |
| ½-½ | 48 | 1965 | olm5 fin B1 corr6568 | D30 Queen's Gambit Declined |
| 19. J Kellner vs H Duenhaupt |
| 0-1 | 63 | 1965 | olm5 fin B1 corr6568 | B20 Sicilian |
| 20. H Duenhaupt vs S Fazekas |
 | ½-½ | 35 | 1965 | olm5 fin B1 corr6568 | A04 Reti Opening |
| 21. H Duenhaupt vs E Arnlind |
| 0-1 | 32 | 1965 | olm5 fin B1 corr6568 | A07 King's Indian Attack |
| 22. L Endzelins vs H Duenhaupt |
| 0-1 | 37 | 1970 | corr GER jub | B81 Sicilian, Scheveningen, Keres Attack |
| 23. P Kenez vs H Duenhaupt |
| 1-0 | 40 | 1973 | EU-chT1 corr7381 | E59 Nimzo-Indian, 4.e3, Main line |
| 24. L Abramov vs H Duenhaupt |
| 0-1 | 47 | 1975 | 8th Correspondence World Championship | D45 Queen's Gambit Declined Semi-Slav |
| 25. H Duenhaupt vs H de Carbonnel |
| ½-½ | 37 | 1975 | 8th Correspondence World Championship | A06 Reti Opening |
Kibitzing
