| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 1. Petursson vs C Hertan |
 | 1-0 | 18 | 1978 | New York | E06 Catalan, Closed, 5.Nf3 |
| 2. C Hertan vs L Day |
| 0-1 | 42 | 1979 | 7th World Open | E76 King's Indian, Four Pawns Attack |
| 3. Chandler vs C Hertan |
| 1-0 | 30 | 1979 | Philadelphia International | A61 Benoni |
| 4. L Day vs C Hertan |
| ½-½ | 29 | 1980 | Marshall Bar Point int. | C34 King's Gambit Accepted |
| 5. M Wilder vs C Hertan |
| 0-1 | 70 | 1981 | CCA March International | D02 Queen's Pawn Game |
| 6. C Hertan vs A Soltis |
| 0-1 | 33 | 1981 | CCA Open | A41 Queen's Pawn Game (with ...d6) |
| 7. C Hertan vs Reshevsky |
| 0-1 | 53 | 1982 | New Paltz Quad | E16 Queen's Indian |
| 8. J Stopa vs C Hertan |
| 1-0 | 40 | 1982 | 5th Monadnock Marathon | B22 Sicilian, Alapin |
| 9. C Hertan vs D Goodman |
| 1-0 | 24 | 1983 | CCA New York International | A40 Queen's Pawn Game |
| 10. Reshevsky vs C Hertan |
| 1-0 | 35 | 1983 | New Paltz Quad | D37 Queen's Gambit Declined |
| 11. C Hertan vs Dlugy |
| 1-0 | 44 | 1984 | New York Open | A40 Queen's Pawn Game |
| 12. J L Watson vs C Hertan |
| 0-1 | 33 | 1984 | CCA February Open | A10 English |
| 13. C Hertan vs J Bonin |
| 1-0 | 30 | 1984 | CCA February Open | E10 Queen's Pawn Game |
| 14. Shamkovich vs C Hertan |
| 0-1 | 48 | 1985 | Framingham Open | A28 English |
| 15. A Shaw vs C Hertan |
| 0-1 | 33 | 1985 | 2nd West Suburban Winter Grand Prix | D58 Queen's Gambit Declined, Tartakower (Makagonov-Bondarevsky) Syst |
| 16. A Shaw vs C Hertan |
| 0-1 | 51 | 1985 | 13th Harvard Open | E12 Queen's Indian |
| 17. C Hertan vs A Shaw |
| 1-0 | 26 | 1985 | 45th New England Open | A28 English |
| 18. C Hertan vs A Shaw |
| 0-1 | 42 | 1985 | Cambridge Chess Classic | E15 Queen's Indian |
| 19. D Norwood vs C Hertan |
| 1-0 | 31 | 1985 | Kalev Pugi Memorial 1985/86 | A22 English |
| 20. I Shtern vs C Hertan |
| 0-1 | 50 | 1985 | Kalev Pugi Memorial 1985/86 | A42 Modern Defense, Averbakh System |
| 21. C Hertan vs J Pajak |
| 0-1 | 64 | 1985 | Kalev Pugi Memorial 1985/86 | E05 Catalan, Open, Classical line |
| 22. C Hertan vs R Stone |
| 1-0 | 37 | 1985 | Kalev Pugi Memorial 1985/86 | D97 Grunfeld, Russian |
| 23. C Hertan vs L Day |
| ½-½ | 49 | 1985 | Kalev Pugi Memorial 1985/86 | B06 Robatsch |
| 24. C Hertan vs B M Kogan |
| 1-0 | 35 | 1986 | Bermuda | C03 French, Tarrasch |
| 25. C Hertan vs P Simon |
| 0-1 | 40 | 1986 | Kalev Pugi Memorial 1985/86 | E97 King's Indian |
Kibitzing
