| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 1. Vyzmanavin vs H Kummerow |
| 1-0 | 48 | 1990 | Biel MTO Open | E81 King's Indian, Samisch |
| 2. H Kummerow vs E Ditt |
| 0-1 | 30 | 1990 | Biel MTO Open | B09 Pirc, Austrian Attack |
| 3. M Pruess vs H Kummerow |
| 0-1 | 24 | 1991 | Dortmund Open | C02 French, Advance |
| 4. H Kummerow vs M Babar |
| ½-½ | 40 | 1991 | Dortmund Open | B01 Scandinavian |
| 5. H Kummerow vs T Henrichs |
| 0-1 | 23 | 1991 | Bochum Post op | B33 Sicilian |
| 6. H Kummerow vs C Wollenweber |
| 1-0 | 14 | 1991 | Dortmund Open | C42 Petrov Defense |
| 7. H Kummerow vs Tal |
 | ½-½ | 40 | 1991 | Moscow4 | B96 Sicilian, Najdorf |
| 8. T Straeter vs H Kummerow |
| 1-0 | 21 | 1991 | Dortmund Open | A48 King's Indian |
| 9. E Grivas vs H Kummerow |
| 1-0 | 27 | 1992 | Dortmund Open-A | E90 King's Indian |
| 10. H Kummerow vs R Zysk |
| 0-1 | 40 | 1992 | Dortmund Open-A | C11 French |
| 11. J Weritz vs H Kummerow |
| 0-1 | 53 | 1992 | Dortmund Open-A | A02 Bird's Opening |
| 12. H Kummerow vs A Illner |
| ½-½ | 16 | 1992 | Dortmund Open-A | B32 Sicilian |
| 13. U Tamm vs H Kummerow |
| 1-0 | 86 | 1992 | Dortmund Open-A | C02 French, Advance |
| 14. H Kummerow vs S Roehrich |
| 1-0 | 41 | 1992 | Dortmund Open-A | B90 Sicilian, Najdorf |
| 15. V Trickov vs H Kummerow |
| 1-0 | 28 | 1992 | Dortmund Open-A | E63 King's Indian, Fianchetto, Panno Variation |
| 16. H Kummerow vs T Ellenbroek |
| 1-0 | 48 | 1992 | Dortmund Open-A | C45 Scotch Game |
| 17. A Karagiannis vs H Kummerow |
| 0-1 | 48 | 1992 | Dortmund Open-A | E97 King's Indian |
| 18. H Kummerow vs T Doering |
 | 1-0 | 29 | 1992 | Dortmund Open-A | B46 Sicilian, Taimanov Variation |
| 19. H Kummerow vs C E Toth |
| 1-0 | 38 | 1992 | Dortmund Open-A | B08 Pirc, Classical |
| 20. H Kummerow vs R Ziatdinov |
| ½-½ | 35 | 1992 | Biel MTO Open | C45 Scotch Game |
| 21. S Roehrich vs H Kummerow |
| ½-½ | 31 | 1993 | Dortmund Open-A | B21 Sicilian, 2.f4 and 2.d4 |
| 22. H Kummerow vs H Klocker |
| ½-½ | 60 | 1993 | Dortmund Open-A | B97 Sicilian, Najdorf |
| 23. V Bukal Jr vs H Kummerow |
| ½-½ | 62 | 1993 | Dortmund Open-A | B33 Sicilian |
| 24. G Heisel vs H Kummerow |
| 1-0 | 22 | 1993 | Dortmund Open-A | A45 Queen's Pawn Game |
| 25. H Kummerow vs E Maljutin |
| 0-1 | 16 | 1993 | Dortmund Open-A | B01 Scandinavian |
Kibitzing
