| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 51. G Sigurjonsson vs K Commons |
| 0-1 | 30 | 1973 | Chicago USCF International | B57 Sicilian |
| 52. K Commons vs N Weinstein |
| 0-1 | 41 | 1973 | Chicago USCF International | B92 Sicilian, Najdorf, Opocensky Variation |
| 53. K Commons vs C Chellstorp |
| 0-1 | 46 | 1973 | Chicago USCF International | A15 English |
| 54. L Kaufman vs K Commons |
| 0-1 | 58 | 1973 | Chicago USCF International | B08 Pirc, Classical |
| 55. J Tarjan vs K Commons |
 | 1-0 | 31 | 1973 | Chicago USCF International | C73 Ruy Lopez, Modern Steinitz Defense |
| 56. K Commons vs G DeFotis |
| ½-½ | 25 | 1973 | Chicago USCF International | B93 Sicilian, Najdorf, 6.f4 |
| 57. K Commons vs P Biyiasas |
| 0-1 | 60 | 1974 | Paul Masson Open | C55 Two Knights Defense |
| 58. E Mednis vs K Commons |
| 1-0 | 26 | 1974 | Los Angeles | B60 Sicilian, Richter-Rauzer |
| 59. K Commons vs Gligoric |
| ½-½ | 58 | 1974 | Los Angeles | C49 Four Knights |
| 60. K Commons vs L Lengyel |
| ½-½ | 58 | 1974 | Los Angeles | E32 Nimzo-Indian, Classical |
| 61. K Commons vs N Weinstein |
| ½-½ | 32 | 1974 | Los Angeles | A15 English |
| 62. Gheorghiu vs K Commons |
| ½-½ | 16 | 1974 | Los Angeles | A16 English |
| 63. J Tarjan vs K Commons |
| ½-½ | 38 | 1974 | Los Angeles | C18 French, Winawer |
| 64. K Commons vs L Kaufman |
| 0-1 | 38 | 1974 | Los Angeles | B14 Caro-Kann, Panov-Botvinnik Attack |
| 65. A Soltis vs K Commons |
| ½-½ | 20 | 1974 | Los Angeles | B02 Alekhine's Defense |
| 66. K Commons vs B Zuckerman |
| ½-½ | 25 | 1974 | Los Angeles | A10 English |
| 67. A Saidy vs K Commons |
| 0-1 | 40 | 1974 | Los Angeles | A16 English |
| 68. K Commons vs J Kaplan |
| ½-½ | 40 | 1974 | Los Angeles | C45 Scotch Game |
| 69. K Commons vs A Bisguier |
| ½-½ | 19 | 1974 | United States Championship | C69 Ruy Lopez, Exchange, Gligoric Variation |
| 70. Benko vs K Commons |
| 1-0 | 60 | 1974 | United States Championship | E08 Catalan, Closed |
| 71. K Commons vs L Evans |
| 0-1 | 43 | 1974 | United States Championship | B84 Sicilian, Scheveningen |
| 72. N Weinstein vs K Commons |
| 0-1 | 35 | 1974 | United States Championship | B84 Sicilian, Scheveningen |
| 73. K Commons vs B Zuckerman |
| 1-0 | 45 | 1974 | United States Championship | E97 King's Indian |
| 74. K Commons vs J Grefe |
| 0-1 | 53 | 1974 | United States Championship | E97 King's Indian |
| 75. K Rogoff vs K Commons |
| 1-0 | 42 | 1974 | United States Championship | D47 Queen's Gambit Declined Semi-Slav |
Kibitzing
