| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. A Neumann vs J Esser |
| 1-0 | 24 |
1903 |
Hilversum | C84 Ruy Lopez, Closed |
| 2. B Leussen vs A Neumann |
 | 1-0 | 39 |
1903 |
Hilversum | B73 Sicilian, Dragon, Classical |
| 3. Vidmar vs A Neumann |
 | 1-0 | 25 |
1903 |
Vienna | C80 Ruy Lopez, Open |
| 4. A Neumann vs W Meiners |
 | 1-0 | 26 |
1903 |
Hilversum | C50 Giuoco Piano |
| 5. A Neumann vs J De Soyres |
| 1-0 | 39 |
1903 |
Hilversum | C63 Ruy Lopez, Schliemann Defense |
| 6. A Speijer vs A Neumann |
| 1-0 | 53 |
1903 |
Hilversum | A43 Old Benoni |
| 7. Duras vs A Neumann |
 | 1-0 | 23 |
1903 |
Hilversum | C40 King's Knight Opening |
| 8. A Neumann vs C Trimborn |
| 1-0 | 26 |
1903 |
Hilversum | C62 Ruy Lopez, Old Steinitz Defense |
| 9. A Neumann vs H Wolf |
| 1-0 | 35 |
1904 |
Vienna | C30 King's Gambit Declined |
| 10. A Neumann vs Hilse |
| 1-0 | 20 |
1904 |
DSB-14.Kongress Hauptturnier A | D31 Queen's Gambit Declined |
| 11. A Neumann vs A E Post |
| 1-0 | 36 |
1904 |
DSB-14.Kongress Hauptturnier A | C84 Ruy Lopez, Closed |
| 12. Maroczy vs A Neumann |
 | 1-0 | 37 |
1904 |
Vienna | C30 King's Gambit Declined |
| 13. A Neumann vs P Kaegbein |
| 1-0 | 38 |
1904 |
DSB-14.Kongress Hauptturnier A | D51 Queen's Gambit Declined |
| 14. A Neumann vs L Loewy Sr |
 | 1-0 | 38 |
1904 |
Vienna | C30 King's Gambit Declined |
| 15. A Neumann vs Vidmar |
| 1-0 | 56 |
1904 |
DSB-14.Kongress Hauptturnier A-playoff | D32 Queen's Gambit Declined, Tarrasch |
| 16. A Neumann vs G Marco |
 | 1-0 | 29 |
1904 |
Vienna | C30 King's Gambit Declined |
| 17. A Neumann vs Przepiorka |
 | 1-0 | 45 |
1904 |
Vienna | C87 Ruy Lopez |
| 18. L Loewy Sr vs A Neumann |
| 1-0 | 36 |
1904 |
Vienna | C30 King's Gambit Declined |
| 19. Vidmar vs A Neumann |
| 1-0 | 40 |
1904 |
DSB-14.Kongress Hauptturnier A-playoff | C70 Ruy Lopez |
| 20. A Neumann vs W Schwan |
| 1-0 | 32 |
1905 |
Barmen Meisterturnier B | C42 Petrov Defense |
| 21. A Neumann vs B Leussen |
| 1-0 | 69 |
1905 |
Barmen Meisterturnier B | C82 Ruy Lopez, Open |
| 22. I Kopa vs A Neumann |
| 1-0 | 36 |
1905 |
Barmen Meisterturnier B | C45 Scotch Game |
| 23. J Perlis vs A Neumann |
 | 1-0 | 38 |
1905 |
Barmen Meisterturnier B | C29 Vienna Gambit |
| 24. A Neumann vs A H Pettersson |
 | 1-0 | 48 |
1905 |
Barmen Meisterturnier B | C79 Ruy Lopez, Steinitz Defense Deferred |
| 25. A Neumann vs L Loewy Jr |
| 1-0 | 39 |
1905 |
Vienna | C30 King's Gambit Declined |