| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 51. V Ceccato vs H Keller |
| 1-0 | 43 | 1951 | Reggio Emilia | A15 English |
| 52. L Rellstab vs H Keller |
| 1-0 | 20 | 1951 | Reggio Emilia | B07 Pirc |
| 53. A Siveri vs H Keller |
| 1-0 | 36 | 1951 | Reggio Emilia | B92 Sicilian, Najdorf, Opocensky Variation |
| 54. P Millini vs H Keller |
| 0-1 | 20 | 1951 | Reggio Emilia | E19 Queen's Indian, Old Main line, 9.Qxc3 |
| 55. H Keller vs E Romani |
| ½-½ | 52 | 1951 | Reggio Emilia | E11 Bogo-Indian Defense |
| 56. E Canal vs H Keller |
| 0-1 | 47 | 1951 | Reggio Emilia | B28 Sicilian, O'Kelly Variation |
| 57. H Keller vs A Matanovic |
| 0-1 | 51 | 1951 | Vienna 1951/52 | E12 Queen's Indian |
| 58. V Castaldi vs H Keller |
| 1-0 | 35 | 1951 | Vienna 1951/52 | C02 French, Advance |
| 59. H Keller vs K Kopetzky |
| ½-½ | 62 | 1951 | Vienna 1951/52 | D07 Queen's Gambit Declined, Chigorin Defense |
| 60. A Beni vs H Keller |
| ½-½ | 43 | 1951 | Vienna 1951/52 | C07 French, Tarrasch |
| 61. H Keller vs Z Kovacs |
| 1-0 | 24 | 1951 | Vienna 1951/52 | D47 Queen's Gambit Declined Semi-Slav |
| 62. B Milic vs H Keller |
| 1-0 | 36 | 1951 | Vienna 1951/52 | B07 Pirc |
| 63. H Keller vs F Kopp |
| 1-0 | 26 | 1952 | Vienna 1951/52 | D32 Queen's Gambit Declined, Tarrasch |
| 64. E Canal vs H Keller |
| ½-½ | 40 | 1952 | Vienna 1951/52 | B07 Pirc |
| 65. H Keller vs L Rellstab |
| 0-1 | 41 | 1952 | Vienna 1951/52 | D46 Queen's Gambit Declined Semi-Slav |
| 66. J Lokvenc vs H Keller |
| 1-0 | 51 | 1952 | Vienna 1951/52 | C10 French |
| 67. H Keller vs Pilnik |
| 0-1 | 40 | 1952 | Vienna 1951/52 | D23 Queen's Gambit Accepted |
| 68. H Keller vs F Vasconcellos |
 | 1-0 | 66 | 1952 | Helsinki Olympiad qual-2 | E19 Queen's Indian, Old Main line, 9.Qxc3 |
| 69. H Keller vs E Madsen |
| ½-½ | 36 | 1952 | Helsinki Olympiad qual-2 | D45 Queen's Gambit Declined Semi-Slav |
| 70. G Danielsson vs H Keller |
| ½-½ | 72 | 1952 | Helsinki Olympiad qual-2 | E64 King's Indian, Fianchetto, Yugoslav System |
| 71. K U Mueller vs H Keller |
| 1-0 | 34 | 1952 | Helsinki Olympiad Final-B | E80 King's Indian, Samisch Variation |
| 72. E Pedersen vs H Keller |
| 1-0 | 21 | 1952 | Helsinki Olympiad Final-B | B07 Pirc |
| 73. H Keller vs L Barden |
| 1-0 | 42 | 1952 | Helsinki Olympiad Final-B | E88 King's Indian, Samisch, Orthodox, 7.d5 c6 |
| 74. H Keller vs J Barendregt |
| 0-1 | 28 | 1952 | Helsinki Olympiad Final-B | E87 King's Indian, Samisch, Orthodox |
Kibitzing
