| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. Janowski vs Schlechter |
| 1-0 | 39 |
1895 |
Hastings | D51 Queen's Gambit Declined |
| 2. Janowski vs G Marco |
| 1-0 | 26 |
1896 |
Vienna | D53 Queen's Gambit Declined |
| 3. Janowski vs M Porges |
 | 1-0 | 23 |
1896 |
R19 8/9 Nuremberg | D53 Queen's Gambit Declined |
| 4. Janowski vs Charousek |
| 1-0 | 77 |
1896 |
Budapest it | D60 Queen's Gambit Declined, Orthodox Defense |
| 5. Janowski vs W Cohn |
| 0-1 | 69 |
1898 |
DSB11 Kongress | D53 Queen's Gambit Declined |
| 6. Janowski vs G Marco |
| ½-½ | 36 |
1898 |
Vienna | D52 Queen's Gambit Declined |
| 7. Janowski vs Steinitz |
 | 0-1 | 45 |
1898 |
GER | D60 Queen's Gambit Declined, Orthodox Defense |
| 8. Janowski vs F G Jacob |
| 1-0 | 35 |
1900 |
R8 8/2 Munich | D63 Queen's Gambit Declined, Orthodox Defense |
| 9. Janowski vs Reggio |
 | 1-0 | 43 |
1901 |
Monte Carlo | D53 Queen's Gambit Declined |
| 10. Janowski vs J Mortimer |
| 1-0 | 62 |
1902 |
Monte Carlo | D67 Queen's Gambit Declined, Orthodox Defense, Bd3 line |
| 11. Janowski vs L R Eisenberg |
 | ½-½ | 87 |
1902 |
Monte Carlo | D50 Queen's Gambit Declined |
| 12. Janowski vs Olland |
| 1-0 | 39 |
1902 |
Hanover | D66 Queen's Gambit Declined, Orthodox Defense, Bd3 line |
| 13. Janowski vs Maroczy |
| ½-½ | 37 |
1902 |
Monte Carlo | D53 Queen's Gambit Declined |
| 14. Janowski vs Alapin |
 | 1-0 | 44 |
1905 |
Barmen Masters A, GER | D55 Queen's Gambit Declined |
| 15. Janowski vs H Wolf |
| ½-½ | 79 |
1905 |
Ostend | D60 Queen's Gambit Declined, Orthodox Defense |
| 16. Janowski vs Von Gottschall |
 | 0-1 | 45 |
1905 |
Barmen Masters A, GER | D66 Queen's Gambit Declined, Orthodox Defense, Bd3 line |
| 17. Janowski vs Leonhardt |
 | 1-0 | 30 |
1905 |
Ostend | D60 Queen's Gambit Declined, Orthodox Defense |
| 18. Janowski vs J N Berger |
| 0-1 | 77 |
1905 |
Barmen Masters A, GER | D63 Queen's Gambit Declined, Orthodox Defense |
| 19. Janowski vs W John |
 | 1-0 | 28 |
1905 |
Barmen Masters A, GER | D53 Queen's Gambit Declined |
| 20. Janowski vs Salwe |
 | 1-0 | 33 |
1906 |
Ostende | D55 Queen's Gambit Declined |
| 21. Janowski vs Mieses |
| 0-1 | 38 |
1906 |
Ostende | D52 Queen's Gambit Declined |
| 22. Janowski vs E Cohn |
 | 1-0 | 31 |
1907 |
Carlsbad it, CZE | D63 Queen's Gambit Declined, Orthodox Defense |
| 23. Janowski vs C Jaffe |
| 0-1 | 62 |
1913 |
New York National | D51 Queen's Gambit Declined |
| 24. Janowski vs Kupchik |
 | 1-0 | 36 |
1913 |
Havana | D53 Queen's Gambit Declined |
| 25. Janowski vs Gunsberg |
| ½-½ | 49 |
1914 |
St.Petersburg prel ,HCL 04 | D55 Queen's Gambit Declined |