| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. Tarrasch vs Janowski |
  | 1-0 | 28 |
1895 |
Hastings | D53 Queen's Gambit Declined |
| 2. Lasker vs Janowski |
  | 1-0 | 36 |
1895 |
Hastings | D55 Queen's Gambit Declined |
| 3. Pillsbury vs Janowski |
 | ½-½ | 78 |
1896 |
Budapest it | D50 Queen's Gambit Declined |
| 4. Burn vs Janowski |
 | 0-1 | 31 |
1897 |
Berlin it | D60 Queen's Gambit Declined, Orthodox Defense |
| 5. K Walbrodt vs Janowski |
| 0-1 | 30 |
1898 |
Vienna | D51 Queen's Gambit Declined |
| 6. Burn vs Janowski |
 | ½-½ | 72 |
1898 |
Vienna (Austria) | D52 Queen's Gambit Declined |
| 7. H W Trenchard vs Janowski |
| 0-1 | 63 |
1898 |
Vienna | D63 Queen's Gambit Declined, Orthodox Defense |
| 8. Pillsbury vs Janowski |
| 1-0 | 45 |
1898 |
Vienna | D63 Queen's Gambit Declined, Orthodox Defense |
| 9. Showalter vs Janowski |
| 0-1 | 45 |
1900 |
R5 7/28 Munich | D60 Queen's Gambit Declined, Orthodox Defense |
| 10. Swiderski vs Janowski |
| ½-½ | 20 |
1902 |
Hanover | D60 Queen's Gambit Declined, Orthodox Defense |
| 11. Marshall vs Janowski |
| ½-½ | 67 |
1902 |
Hanover | D60 Queen's Gambit Declined, Orthodox Defense |
| 12. Marshall vs Janowski |
| 0-1 | 47 |
1905 |
Paris | D51 Queen's Gambit Declined |
| 13. Teichmann vs Janowski |
 | 1-0 | 42 |
1905 |
Ostend | D63 Queen's Gambit Declined, Orthodox Defense |
| 14. Marshall vs Janowski |
| 0-1 | 66 |
1905 |
Paris m | D60 Queen's Gambit Declined, Orthodox Defense |
| 15. Marshall vs Janowski |
| 1-0 | 50 |
1905 |
Paris | D51 Queen's Gambit Declined |
| 16. Schlechter vs Janowski |
 | 1-0 | 34 |
1905 |
Ostend | D60 Queen's Gambit Declined, Orthodox Defense |
| 17. Marshall vs Janowski |
| 1-0 | 67 |
1905 |
Paris | D60 Queen's Gambit Declined, Orthodox Defense |
| 18. Marshall vs Janowski |
| ½-½ | 65 |
1905 |
Ostend | D51 Queen's Gambit Declined |
| 19. Marshall vs Janowski |
| ½-½ | 40 |
1905 |
Paris | D63 Queen's Gambit Declined, Orthodox Defense |
| 20. Marshall vs Janowski |
| 1-0 | 57 |
1905 |
Paris | D67 Queen's Gambit Declined, Orthodox Defense, Bd3 line |
| 21. Marshall vs Janowski |
| 0-1 | 58 |
1907 |
Carlsbad it, CZE | D61 Queen's Gambit Declined, Orthodox, Rubinstein Attack |
| 22. Dus Chotimirsky vs Janowski |
 | 1-0 | 55 |
1907 |
Carlsbad it, CZE | D63 Queen's Gambit Declined, Orthodox Defense |
| 23. Marshall vs Janowski |
| 1-0 | 35 |
1908 |
Suresne | D63 Queen's Gambit Declined, Orthodox Defense |
| 24. Marshall vs Janowski |
| ½-½ | 60 |
1908 |
Suresne | D62 Queen's Gambit Declined, Orthodox, Rubinstein Attack |
| 25. Marshall vs Janowski |
 | ½-½ | 59 |
1908 |
Suresne | D62 Queen's Gambit Declined, Orthodox, Rubinstein Attack |