| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 51. K Podzielny vs W Heemskerk |
 | 1-0 | 26 | 2009 | Groningen Chess Festival | A07 King's Indian Attack |
| 52. Nijboer vs W Heemskerk |
| ½-½ | 24 | 2010 | Schaakfestival Open A | C16 French, Winawer |
| 53. W Heemskerk vs A Feuerstack |
| ½-½ | 56 | 2010 | Schaakfestival Open A | A30 English, Symmetrical |
| 54. W Heemskerk vs Naroditsky |
| ½-½ | 50 | 2010 | Schaakfestival Open A | E69 King's Indian, Fianchetto, Classical Main line |
| 55. B Bok vs W Heemskerk |
| ½-½ | 37 | 2011 | Schaakfestival Open A | B27 Sicilian |
| 56. W Heemskerk vs S Grover |
| ½-½ | 16 | 2011 | Schaakfestival Open A | A14 English |
| 57. W Heemskerk vs Nisipeanu |
| 0-1 | 42 | 2011 | European Club Cup | A42 Modern Defense, Averbakh System |
| 58. L Mihasi vs W Heemskerk |
| 0-1 | 56 | 2011 | European Club Cup | C03 French, Tarrasch |
| 59. W Heemskerk vs N Friedrich |
| ½-½ | 45 | 2011 | European Club Cup | D02 Queen's Pawn Game |
| 60. T Meurs vs W Heemskerk |
| 1-0 | 39 | 2011 | European Club Cup | C11 French |
| 61. W Heemskerk vs K Kanli |
| 1-0 | 61 | 2011 | European Club Cup | D74 Neo-Grunfeld, 6.cd Nxd5, 7.O-O |
| 62. D Kovachev vs W Heemskerk |
| ½-½ | 13 | 2011 | European Club Cup | C12 French, McCutcheon |
| 63. R Hess vs W Heemskerk |
| 1-0 | 47 | 2011 | Groningen Open-A | C16 French, Winawer |
| 64. W Heemskerk vs L Cako |
| 0-1 | 43 | 2011 | Groningen Open-A | A14 English |
| 65. R Meng vs W Heemskerk |
| ½-½ | 53 | 2011 | Groningen Open-A | C11 French |
| 66. W Heemskerk vs F Andraschko |
| 1-0 | 26 | 2011 | Groningen Open-A | A37 English, Symmetrical |
| 67. N Bijlsma vs W Heemskerk |
| ½-½ | 9 | 2011 | Groningen Open-A | C03 French, Tarrasch |
| 68. W Heemskerk vs D Kerigan |
| 1-0 | 52 | 2011 | Groningen Open-A | E67 King's Indian, Fianchetto |
| 69. B Firat vs W Heemskerk |
| 1-0 | 38 | 2011 | Groningen Open-A | A06 Reti Opening |
| 70. W Heemskerk vs T Meurs |
| ½-½ | 26 | 2011 | Groningen Open-A | A06 Reti Opening |
| 71. J Vogel vs W Heemskerk |
| ½-½ | 7 | 2011 | Groningen Open-A | E08 Catalan, Closed |
| 72. W Heemskerk vs Smeets |
| 0-1 | 35 | 2012 | Dutch Open | E63 King's Indian, Fianchetto, Panno Variation |
| 73. H Voss vs W Heemskerk |
| 0-1 | 36 | 2012 | 16th Unive Open | C03 French, Tarrasch |
| 74. W Heemskerk vs L Riemersma |
| ½-½ | 58 | 2012 | 16th Unive Open | D02 Queen's Pawn Game |
| 75. S Kasparov vs W Heemskerk |
| 1-0 | 25 | 2012 | 16th Unive Open | C03 French, Tarrasch |
Kibitzing
