| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 1. O Zander vs B Koch |
| 1-0 | 24 | 1924 | Berlin Ch | E76 King's Indian, Four Pawns Attack |
| 2. B Koch vs K Richter |
| 0-1 | 61 | 1924 | Berlin Championship | B32 Sicilian |
| 3. B Koch vs L Monosson |
| 0-1 | 37 | 1925 | Jaegerklause Tournament | C28 Vienna Game |
| 4. B Koch vs O Zander |
| 1-0 | 41 | 1926 | Berlin Championship | A43 Old Benoni |
| 5. G Stoltz vs B Koch |
| 1-0 | 30 | 1928 | Berlin | D52 Queen's Gambit Declined |
| 6. I Rabinovich-Barav vs B Koch |
 | 1-0 | 23 | 1928 | Springer chess club tournament | A45 Queen's Pawn Game |
| 7. B Koch vs P Leonhardt |
| ½-½ | 26 | 1928 | Berlin BSG | D55 Queen's Gambit Declined |
| 8. A Nimzowitsch vs B Koch |
 | 1-0 | 36 | 1928 | Berlin BSG | A16 English |
| 9. B Koch vs A Brinckmann |
| ½-½ | 24 | 1928 | Berlin BSG | D02 Queen's Pawn Game |
| 10. W Schlage vs B Koch |
| ½-½ | 34 | 1928 | Berlin BSG | B13 Caro-Kann, Exchange |
| 11. B Koch vs Reti |
| ½-½ | 61 | 1928 | Berlin BSG | D30 Queen's Gambit Declined |
| 12. L Steiner vs B Koch |
| ½-½ | 47 | 1928 | Berlin BSG | B17 Caro-Kann, Steinitz Variation |
| 13. B Koch vs K Helling |
| 0-1 | 44 | 1928 | Berlin BSG | D27 Queen's Gambit Accepted, Classical |
| 14. Saemisch vs B Koch |
| 1-0 | 51 | 1928 | Berlin BSG | D30 Queen's Gambit Declined |
| 15. B Koch vs C Ahues |
| 0-1 | 45 | 1928 | Berlin BSG | E17 Queen's Indian |
| 16. G Stoltz vs B Koch |
| 1-0 | 30 | 1928 | Berlin BSG | D52 Queen's Gambit Declined |
| 17. B Koch vs Tartakower |
| ½-½ | 40 | 1928 | Berlin BSG | A47 Queen's Indian |
| 18. B Koch vs P Johner |
| 1-0 | 45 | 1928 | Berlin BSG | E11 Bogo-Indian Defense |
| 19. Bogoljubov vs B Koch |
| 1-0 | 32 | 1928 | Berlin BSG | D30 Queen's Gambit Declined |
| 20. K Helling vs B Koch |
| 0-1 | 24 | 1929 | Berlin (Moka Efti) | D51 Queen's Gambit Declined |
| 21. B Koch vs J Mieses |
| ½-½ | 47 | 1929 | Berlin ch | D05 Queen's Pawn Game |
| 22. W Schlage vs B Koch |
| ½-½ | 25 | 1929 | Berlin ch | A46 Queen's Pawn Game |
| 23. B Koch vs K Richter |
 | 0-1 | 39 | 1929 | Berlin ch | C01 French, Exchange |
| 24. S Rotenstein vs B Koch |
| 0-1 | 62 | 1929 | Berlin ch | D52 Queen's Gambit Declined |
| 25. B Koch vs R Duehrssen |
| 0-1 | 27 | 1929 | Berlin ch | C26 Vienna |
Kibitzing
