| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 76. G de Boer vs L Bass |
| 1-0 | 56 | 1983 | Regency Masters | E11 Bogo-Indian Defense |
| 77. G de Boer vs U Zak |
| 1-0 | 34 | 1983 | Regency Masters | D38 Queen's Gambit Declined, Ragozin Variation |
| 78. G de Boer vs L Pliester |
| 1-0 | 33 | 1983 | Regency Masters | A77 Benoni, Classical, 9...Re8, 10.Nd2 |
| 79. Kudrin vs G de Boer |
| 1-0 | 27 | 1984 | Lugano Open | B80 Sicilian, Scheveningen |
| 80. P N Andreasen vs G de Boer |
| ½-½ | 17 | 1984 | Politiken Cup | D37 Queen's Gambit Declined |
| 81. G de Boer vs C Hartman |
| 0-1 | 56 | 1984 | Politiken Cup | D27 Queen's Gambit Accepted, Classical |
| 82. N S Nilsson vs G de Boer |
| 0-1 | 47 | 1984 | Politiken Cup | B80 Sicilian, Scheveningen |
| 83. G de Boer vs K Berg |
| 1-0 | 46 | 1984 | Politiken Cup | E60 King's Indian Defense |
| 84. G de Boer vs I Bilek |
| ½-½ | 19 | 1984 | Politiken Cup | E92 King's Indian |
| 85. D Cramling vs G de Boer |
| 0-1 | 75 | 1984 | Politiken Cup | D35 Queen's Gambit Declined |
| 86. G de Boer vs J van Mil |
| ½-½ | 7 | 1984 | Politiken Cup | B96 Sicilian, Najdorf |
| 87. G de Boer vs Lengyel |
| ½-½ | 36 | 1984 | Politiken Cup | C91 Ruy Lopez, Closed |
| 88. S Fedder vs G de Boer |
| ½-½ | 42 | 1984 | Politiken Cup | E39 Nimzo-Indian, Classical, Pirc Variation |
| 89. Van der Sterren vs G de Boer |
| ½-½ | 91 | 1984 | Politiken Cup | A56 Benoni Defense |
| 90. L Cserna vs G de Boer |
| 0-1 | 53 | 1984 | Amsterdam OHRA Group B | D58 Queen's Gambit Declined, Tartakower (Makagonov-Bondarevsky) Syst |
| 91. G de Boer vs S Martinovic |
| 1-0 | 53 | 1984 | Amsterdam OHRA Group B | E91 King's Indian |
| 92. G de Boer vs Szabo |
| 0-1 | 41 | 1984 | Amsterdam OHRA Group B | E12 Queen's Indian |
| 93. Z Krnic vs G de Boer |
| ½-½ | 32 | 1984 | Amsterdam OHRA Group B | A13 English |
| 94. G de Boer vs L Pliester |
| ½-½ | 34 | 1984 | Amsterdam OHRA Group B | A61 Benoni |
| 95. P Ostojic vs G de Boer |
| 1-0 | 40 | 1984 | Amsterdam OHRA Group B | B80 Sicilian, Scheveningen |
| 96. G de Boer vs Nijboer |
| 1-0 | 39 | 1984 | Amsterdam OHRA Group B | E15 Queen's Indian |
| 97. D Ciric vs G de Boer |
| 1-0 | 31 | 1984 | Amsterdam OHRA Group B | B80 Sicilian, Scheveningen |
| 98. F van der Vliet vs G de Boer |
| 0-1 | 34 | 1984 | Amsterdam OHRA Group B | E15 Queen's Indian |
| 99. G de Boer vs D de Wit |
| ½-½ | 26 | 1984 | Dutch Open | A61 Benoni |
| 100. C Jansen vs G de Boer |
| 0-1 | 33 | 1984 | Dutch Open | A07 King's Indian Attack |
Kibitzing
