| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 51. Duchamp vs Noteboom |
| ½-½ | 51 |
1931 |
Nice | E20 Nimzo-Indian |
| 52. Duchamp vs B P Reilly |
| 0-1 | 26 |
1931 |
Nice | D37 Queen's Gambit Declined |
| 53. Duchamp vs Znosko-Borovsky |
 | ½-½ | 60 |
1931 |
Nice it | E20 Nimzo-Indian |
| 54. I Koenig vs Duchamp |
| 1-0 | 31 |
1931 |
Prague ol (Men) | E12 Queen's Indian |
| 55. H Steiner vs Duchamp |
| 1-0 | 41 |
1931 |
Prague ol (Men) | E16 Queen's Indian |
| 56. S Rosselli del Turco vs Duchamp |
| 1-0 | 34 |
1931 |
Nice | E23 Nimzo-Indian, Spielmann |
| 57. Duchamp vs Mieses |
| 0-1 | 37 |
1931 |
Nice | D45 Queen's Gambit Declined Semi-Slav |
| 58. J A Seitz vs Duchamp |
| 1-0 | 22 |
1931 |
Nice | A47 Queen's Indian |
| 59. Duchamp vs K Skalicka |
| 0-1 | 36 |
1931 |
Prague ol (Men) | D37 Queen's Gambit Declined |
| 60. Duchamp vs Feigin |
| 1-0 | 34 |
1933 |
Folkestone ol (Men) | E81 King's Indian, Samisch |
| 61. Duchamp vs Dake |
| 0-1 | 37 |
1933 |
Olympiad | E20 Nimzo-Indian |
| 62. T Sigurdsson vs Duchamp |
| 1-0 | 33 |
1933 |
Olympiad | E34 Nimzo-Indian, Classical, Noa Variation |
| 63. P Devos vs Duchamp |
| 1-0 | 83 |
1933 |
Olympiad | A47 Queen's Indian |
| 64. Opocensky vs Duchamp |
| ½-½ | 37 |
1933 |
Olympiad | A18 English, Mikenas-Carls |
| 65. Duchamp vs M Folkmann |
| 1-0 | 46 |
1933 |
cr-game | E20 Nimzo-Indian |
| 66. Duchamp vs Lilienthal |
| 0-1 | 37 |
1933 |
Olympiad | D69 Queen's Gambit Declined, Orthodox Defense, Classical, 13.de |
| 67. F Herzog vs Duchamp |
| 0-1 | 40 |
1933 |
IFSB Bundesmeisterchaft | E19 Queen's Indian, Old Main line, 9.Qxc3 |
| 68. K Makarczyk vs Duchamp |
| 1-0 | 29 |
1933 |
Folkestone ol (Men) | E15 Queen's Indian |
| 69. E Glass vs Duchamp |
| 1-0 | 20 |
1933 |
Olympiad | E21 Nimzo-Indian, Three Knights |
| 70. Grimme / Luuring / Ree / Krabbe vs Duchamp |
| 0-1 | 31 |
1961 |
Correspondence | B40 Sicilian |
