| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 1. K Dehmelt vs C Carlson |
| 1-0 | 51 | 1975 | Pan-American Intercollegiate | B52 Sicilian, Canal-Sokolsky (Rossolimo) Attack |
| 2. A Soltis vs K Dehmelt |
| ½-½ | 41 | 1978 | Continental Open | A07 King's Indian Attack |
| 3. K Dehmelt vs Seirawan |
| ½-½ | 26 | 1985 | New York Open | B42 Sicilian, Kan |
| 4. Benjamin vs K Dehmelt |
| 1-0 | 38 | 1985 | New York Open | A17 English |
| 5. K Dehmelt vs J Fedorowicz |
| ½-½ | 31 | 1985 | New York Open | B52 Sicilian, Canal-Sokolsky (Rossolimo) Attack |
| 6. K Dehmelt vs Browne |
| 0-1 | 42 | 1986 | New York Open | B52 Sicilian, Canal-Sokolsky (Rossolimo) Attack |
| 7. Larsen vs K Dehmelt |
 | 1-0 | 44 | 1986 | New York Open | C26 Vienna |
| 8. K Krantz vs K Dehmelt |
| 1-0 | 24 | 1986 | corr | C30 King's Gambit Declined |
| 9. D Gurevich vs K Dehmelt |
| 1-0 | 29 | 1986 | New York Open | E42 Nimzo-Indian, 4.e3 c5, 5.Ne2 (Rubinstein) |
| 10. P Nikolic vs K Dehmelt |
| 1-0 | 47 | 1986 | Reykjavik Open | D39 Queen's Gambit Declined, Ragozin, Vienna Variation |
| 11. K Dehmelt vs T Bjornsson |
| ½-½ | 52 | 1986 | Reykjavik Open | B52 Sicilian, Canal-Sokolsky (Rossolimo) Attack |
| 12. T Thorsteinsson vs K Dehmelt |
| 1-0 | 49 | 1986 | Reykjavik Open | E38 Nimzo-Indian, Classical, 4...c5 |
| 13. K Dehmelt vs J Vidarsson |
| 1-0 | 50 | 1986 | Reykjavik Open | B52 Sicilian, Canal-Sokolsky (Rossolimo) Attack |
| 14. K Dehmelt vs B M Kogan |
 | 1-0 | 24 | 1986 | Reykjavik Open | B81 Sicilian, Scheveningen, Keres Attack |
| 15. K Dehmelt vs J Fedorowicz |
| 0-1 | 78 | 1986 | Reykjavik Open | B30 Sicilian |
| 16. K Dehmelt vs V Frias Pablaza |
| 1-0 | 45 | 1986 | 14th World Open | B45 Sicilian, Taimanov |
| 17. A Fishbein vs K Dehmelt |
| 1-0 | 55 | 1987 | 15th World Open | C84 Ruy Lopez, Closed |
| 18. K Dehmelt vs S Djuric |
| 0-1 | 29 | 1987 | 15th World Open | C69 Ruy Lopez, Exchange, Gligoric Variation |
| 19. K Dehmelt vs Reshevsky |
| 0-1 | 48 | 1987 | Lugano Open | C69 Ruy Lopez, Exchange, Gligoric Variation |
| 20. K Dehmelt vs Anand |
| 0-1 | 52 | 1987 | 15th World Open | C69 Ruy Lopez, Exchange, Gligoric Variation |
| 21. K Dehmelt vs R Henley |
| 0-1 | 50 | 1988 | 16th World Open | C19 French, Winawer, Advance |
| 22. B Rind vs K Dehmelt |
| 0-1 | 86 | 1988 | Philadelphia | A28 English |
| 23. O Popovych vs K Dehmelt |
| ½-½ | 5 | 1988 | Philadelphia | A07 King's Indian Attack |
| 24. K Dehmelt vs L Leow |
| 0-1 | 39 | 1988 | Philadelphia | B03 Alekhine's Defense |
| 25. K Dehmelt vs N Rogers |
| ½-½ | 26 | 1988 | Philadelphia | B15 Caro-Kann |
Kibitzing
