| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 26. Burn vs J N Berger |
| 0-1 | 39 |
1887 |
Frankfurt (Germany) | C65 Ruy Lopez, Berlin Defense |
| 27. Harmonist vs J N Berger |
 | 0-1 | 50 |
1887 |
DSB-05.Kongress | C65 Ruy Lopez, Berlin Defense |
| 28. J N Berger vs Taubenhaus |
| 1-0 | 60 |
1887 |
DSB-05.Kongress | C83 Ruy Lopez, Open |
| 29. Burn vs J N Berger |
 | 0-1 | 39 |
1887 |
08.02 R21 GER Frankf | C22 Center Game |
| 30. A Fritz vs J N Berger |
| 0-1 | 36 |
1887 |
DSB-05.Kongress | C51 Evans Gambit |
| 31. J N Berger vs Frohlich |
 | 1-0 | 11 |
1888 |
Graz - | C46 Three Knights |
| 32. E Schallopp vs J N Berger |
| 0-1 | 36 |
1889 |
Breslau | C55 Two Knights Defense |
| 33. J N Berger vs Metger |
| 1-0 | 19 |
1889 |
Breslau | C66 Ruy Lopez |
| 34. J Minckwitz vs J N Berger |
| 0-1 | 50 |
1889 |
Breslau | C50 Giuoco Piano |
| 35. J N Berger vs P Gaspary |
 | 1-0 | 16 |
1889 |
corr | C65 Ruy Lopez, Berlin Defense |
| 36. Paulsen vs J N Berger |
 | 0-1 | 20 |
1889 |
Breslau | C26 Vienna |
| 37. P Gaspary vs J N Berger |
| 0-1 | 34 |
1890 |
corr | C77 Ruy Lopez |
| 38. J Blake vs J N Berger |
| 0-1 | 49 |
1891 |
corr | C65 Ruy Lopez, Berlin Defense |
| 39. P K Seuffert vs J N Berger |
| 0-1 | 33 |
1894 |
9th DSB Kongress, Leipzig | C67 Ruy Lopez |
| 40. J W Baird vs J N Berger |
| 0-1 | 40 |
1894 |
9th DSB Kongress, Leipzig | C83 Ruy Lopez, Open |
| 41. Charousek vs J N Berger |
 | 0-1 | 32 |
1898 |
11th DSB Kongress, Cologne | C32 King's Gambit Declined, Falkbeer Counter Gambit |
| 42. J N Berger vs Albin |
| 1-0 | 38 |
1898 |
11th DSB Kongress, Cologne | D46 Queen's Gambit Declined Semi-Slav |
| 43. Von Gottschall vs J N Berger |
| 0-1 | 48 |
1898 |
11th DSB Kongress, Cologne | C26 Vienna |
| 44. J N Berger vs H Wolf |
| 1-0 | 49 |
1900 |
Munich | D05 Queen's Pawn Game |
| 45. M Billecard vs J N Berger |
| 0-1 | 27 |
1900 |
Munich | D32 Queen's Gambit Declined, Tarrasch |
| 46. J N Berger vs Maroczy |
| 1-0 | 66 |
1900 |
Munich | D00 Queen's Pawn Game |
| 47. J N Berger vs F G Jacob |
 | 1-0 | 17 |
1900 |
Munich | D00 Queen's Pawn Game |
| 48. Von Popiel vs J N Berger |
| 0-1 | 49 |
1900 |
Munich | C44 King's Pawn Game |
| 49. J N Berger vs W John |
| 1-0 | 52 |
1904 |
Coburg (Meisterturnier) | D00 Queen's Pawn Game |
| 50. J N Berger vs H Wolf |
| 1-0 | 43 |
1904 |
Coburg (Meisterturnier) | D00 Queen's Pawn Game |