Games played by Kees Dekker
| White | ELO W | Black | ELO B | Result | Moves | ECO | Date | Tournament | View |
| Agur, E | Dekker, K | 1-0  |
17 | D34 | 1976 | NED-ch op |
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| Dekker, K | Ree, H | 2420 | 0-1 |
31 | B84 | 1976 | NED-ch op |
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| Strand, O | Dekker, K | 0-1 |
41 | A18 | 1972 | WchT U26 19th fin-B |
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| Windt, B | Dekker, K | ½-½ |
1972 | WchT U26 19th fin-B |
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| Juhnke, J | 2280 | Dekker, K | 2200 | 1-0 |
30 | C44 | 1972 | WchT U26 19th prel-D |
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| Halldorsson, B | Dekker, K | ½-½ |
42 | C68 | 1972 | WchT U26 19th fin-B |
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| Dekker, K | Saariluoma, P | 0-1 |
1972 | WchT U26 19th prel-D |
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| Dekker, K | Lieberherr, K | ½-½ |
1972 | WchT U26 19th fin-B |
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| Dekker, K | Jardine, I | 1-0 |
1972 | WchT U26 19th fin-B |
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| Dekker, K | Falk, L | ½-½ |
43 | B98 | 1972 | WchT U26 19th fin-B |
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| Dekker, K | Vokoun, J | 0-1 |
42 | B07 | 1972 | WchT U26 19th fin-B |
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| Dekker, K | Kerkhoff, L | 1-0 |
31 | C72 | 1972 | NED-chT |
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| Dekker, K | Michalet, G | 1-0 |
40 | B09 | 1972 | WchT U26 19th prel-D |
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| Zara, D | 2200 | Dekker, K | 0-1 |
31 | D02 | 1972 | WchT U26 19th prel-D |
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