| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 1. C Kamp vs P Hertel |
| 1-0 | 57 | 1988 | Dortmund Open | E98 King's Indian, Orthodox, Taimanov, 9.Ne1 |
| 2. P Hertel vs W R Metz |
| ½-½ | 29 | 1988 | Massow mem-A corr8895 | B32 Sicilian |
| 3. P Hertel vs J Dueball |
| ½-½ | 18 | 1989 | Liechtenstein Open | B60 Sicilian, Richter-Rauzer |
| 4. Z Kozul vs P Hertel |
| 1-0 | 51 | 1989 | Liechtenstein Open | E91 King's Indian |
| 5. A Habibi vs P Hertel |
| 1-0 | 41 | 1990 | Biel MTO Open | A04 Reti Opening |
| 6. Z Mestrovic vs P Hertel |
| 1-0 | 33 | 1990 | Vienna Open | A07 King's Indian Attack |
| 7. W Wittmann vs P Hertel |
| 1-0 | 41 | 1990 | Vienna Open | B98 Sicilian, Najdorf |
| 8. J Blauert vs P Hertel |
| ½-½ | 49 | 1991 | Krumbach Open | B22 Sicilian, Alapin |
| 9. P Hertel vs J Gallagher |
| 0-1 | 23 | 1991 | Krumbach Open | B87 Sicilian, Fischer-Sozin with ...a6 and ...b5 |
| 10. J Gabriel vs P Hertel |
| 1-0 | 35 | 1991 | Krumbach Open | E97 King's Indian |
| 11. M Schweizer vs P Hertel |
| ½-½ | 20 | 1991 | Krumbach Open | A07 King's Indian Attack |
| 12. P Hertel vs G Schlichtmann |
| 0-1 | 58 | 1991 | Krumbach Open | B60 Sicilian, Richter-Rauzer |
| 13. P Hertel vs M Stock |
| ½-½ | 41 | 1991 | Krumbach Open | B01 Scandinavian |
| 14. F Naumann vs P Hertel |
| 0-1 | 39 | 1991 | Krumbach Open | E99 King's Indian, Orthodox, Taimanov |
| 15. P Hertel vs C Magg |
| ½-½ | 25 | 1991 | Krumbach Open | B12 Caro-Kann Defense |
| 16. M Wilke vs P Hertel |
| ½-½ | 10 | 1991 | Krumbach Open | B92 Sicilian, Najdorf, Opocensky Variation |
| 17. P Hertel vs C Singer |
| ½-½ | 23 | 1991 | Krumbach Open | C67 Ruy Lopez |
| 18. M Gschwendtner vs P Hertel |
| 0-1 | 27 | 1991 | Vienna Open | B90 Sicilian, Najdorf |
| 19. E Szalanczy vs P Hertel |
| 0-1 | 40 | 1992 | Dortmund Open-A | B90 Sicilian, Najdorf |
| 20. P Hertel vs R Tischbierek |
| 0-1 | 52 | 1992 | Dortmund Open-A | B67 Sicilian, Richter-Rauzer Attack, 7...a6 Defense, 8...Bd7 |
| 21. R Zysk vs P Hertel |
| 1-0 | 59 | 1992 | Dortmund Open-A | E61 King's Indian |
| 22. G Kern vs P Hertel |
| 1-0 | 19 | 1992 | Dortmund Open-A | E80 King's Indian, Samisch Variation |
| 23. P Hertel vs J Koscielski |
| 0-1 | 75 | 1992 | Dortmund Open-A | B86 Sicilian, Fischer-Sozin Attack |
| 24. J Kloster vs P Hertel |
| 0-1 | 27 | 1992 | Dortmund Open-A | B23 Sicilian, Closed |
| 25. P Hertel vs C Hacker |
| ½-½ | 51 | 1992 | Dortmund Open-A | C42 Petrov Defense |
Kibitzing
