| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 26. Flohr vs O Naegeli |
 | 1-0 | 43 |
1933 |
Match | D05 Queen's Pawn Game |
| 27. O Naegeli vs Flohr |
 | 0-1 | 42 |
1933 |
Match | D18 Queen's Gambit Declined Slav, Dutch |
| 28. O Naegeli vs Flohr |
| ½-½ | 47 |
1933 |
Match | D30 Queen's Gambit Declined |
| 29. Flohr vs O Naegeli |
| 0-1 | 57 |
1933 |
Match | A28 English |
| 30. O Naegeli vs Bogoljubov |
| 0-1 | 43 |
1934 |
Zurich | A48 King's Indian |
| 31. Euwe vs O Naegeli |
 | 1-0 | 41 |
1934 |
Zurich | D41 Queen's Gambit Declined, Semi-Tarrasch |
| 32. O Naegeli vs H Joss |
| ½-½ | 36 |
1934 |
Zurich | C11 French |
| 33. O Naegeli vs Alekhine |
| 0-1 | 52 |
1934 |
Zurich | C11 French |
| 34. Stahlberg vs O Naegeli |
| 1-0 | 27 |
1934 |
Zurich | D11 Queen's Gambit Declined Slav |
| 35. O Bernstein vs O Naegeli |
| 1-0 | 62 |
1934 |
Zurich | D02 Queen's Pawn Game |
| 36. O Naegeli vs W Henneberger |
| 0-1 | 61 |
1934 |
Zurich | E11 Bogo-Indian Defense |
| 37. H Muller vs O Naegeli |
 | 0-1 | 42 |
1934 |
Zurich | E38 Nimzo-Indian, Classical, 4...c5 |
| 38. S Rosselli del Turco vs O Naegeli |
| 1-0 | 33 |
1934 |
Zurich | D05 Queen's Pawn Game |
| 39. O Naegeli vs F Gygli |
| ½-½ | 66 |
1934 |
Zurich | B17 Caro-Kann, Steinitz Variation |
| 40. H Johner vs O Naegeli |
| ½-½ | 80 |
1934 |
Zurich | C74 Ruy Lopez, Modern Steinitz Defense |
| 41. O Naegeli vs Nimzowitsch |
| 0-1 | 34 |
1934 |
Zurich | E15 Queen's Indian |
| 42. O Naegeli vs Flohr |
| 0-1 | 33 |
1934 |
Zurich | A84 Dutch |
| 43. Grob vs O Naegeli |
| ½-½ | 74 |
1934 |
Zurich | C50 Giuoco Piano |
| 44. O Naegeli vs Lasker |
| 0-1 | 27 |
1934 |
Zurich | E16 Queen's Indian |
| 45. Fine vs O Naegeli |
 | 1-0 | 36 |
1935 |
Warsaw olm, POL | E90 King's Indian |
| 46. O Naegeli vs Book |
| ½-½ | 21 |
1935 |
Warsaw ol (Men) | D28 Queen's Gambit Accepted, Classical |
| 47. O Naegeli vs E Andersen |
| 1-0 | 76 |
1935 |
Olympiad | E23 Nimzo-Indian, Spielmann |
| 48. O Naegeli vs Keres |
| 0-1 | 40 |
1935 |
Warszawa ol (18.8.35) | D51 Queen's Gambit Declined |
| 49. O Naegeli vs L Steiner |
| 0-1 | 43 |
1935 |
Olympiad | E23 Nimzo-Indian, Spielmann |
| 50. Book vs O Naegeli |
 | ½-½ | 16 |
1936 |
Munich ol (Men) | B80 Sicilian, Scheveningen |