Game |
| Result | Moves |
Year | Event/Locale | Opening |
51. A Nimzowitsch vs A Olson |
 | 1-0 | 27 | 1924 | Nordic Congress, Copenhagen | B21 Sicilian, 2.f4 and 2.d4 |
52. H G Hansen vs A Olson |
| 1-0 | 41 | 1928 | Nordic Congress, Oslo | E00 Queen's Pawn Game |
53. A Olson vs L Haasted |
| 0-1 | 34 | 1928 | Nordic Congress, Oslo | A52 Budapest Gambit |
54. H C Christoffersen vs A Olson |
| 0-1 | 33 | 1929 | Nordic Congress, Gothenburg | E17 Queen's Indian |
55. H G Hansen vs A Olson |
| 1-0 | 32 | 1929 | Nordic Congress, Gothenburg | A02 Bird's Opening |
56. A Olson vs E Lundin |
| 0-1 | 29 | 1929 | Nordic Congress, Gothenburg | D51 Queen's Gambit Declined |
57. A Olson vs E Andersen |
| 0-1 | 44 | 1929 | Nordic Congress, Gothenburg | E32 Nimzo-Indian, Classical |