Partijen in Ronde 12 .
| 1 | Peter van Wermeskerken | – | Robert Warmenhoven | 1-0 |
| 2 | Dominique Nierop | – | Henk van Huizen | 1-0 |
| 3 | Koos Croes | – | Hans Hendriks | 0-1 |
| 4 | Jan van der Meer | – | Wim de Groot | 1-0 |
| 5 | Geert van den Berg | – | Rene Denie | 1-0 |
| 6 | Edwin van der Leij | – | Michelle de Liefde | 1-0 |
| 7 | Rob Bes | – | Aad Middeldorp | 1-0 |
| 8 | Peter Taanman | – | Aad van Eijk | 0-1 |
| 9 | Arno van der Kruijs | – | Mike de Torbal | 1-0 |
| 10 | Mai Huong Nguyen | – | Ruud van Dijk | 0-1 |
Rangschikking na Ronde 12 – 20-12-2017 – Normal ranking.
| Pos | Naam | Prt | W | R | V | Score | Wrde | VWrde | S | R | Rtg | TPR | BRtg |
| 1 | Robert Warmenhoven | 10 | 7 | 0 | 3 | 819,0 | 100,0 | 100,0 | 0 | -1 | 1562 | 1742 | 1513 |
| 2 | Hans Hendriks | 9 | 6 | 1 | 2 | 815,0 | 99,0 | 96,0 | 1 | -1 | 1485 | 1668 | 1438 |
| 3 | Theo van der Pol | 8 | 6 | 1 | 1 | 811,0 | 98,0 | 99,0 | 0 | -1 | 1813 | 1853 | 0 |
| 4 | Peter van Wermeskerken | 9 | 5 | 2 | 2 | 770,2 | 97,0 | 94,0 | 1 | 1 | 1710 | 1750 | 0 |
| 5 | Rob Warmerdam | 6 | 4 | 2 | 0 | 763,8 | 96,0 | 97,0 | -2 | -1 | 1754 | 1804 | 1751 |
| 6 | Henk van Huizen | 6 | 4 | 1 | 1 | 741,6 | 95,0 | 98,0 | 0 | -1 | 1915 | 1828 | 1928 |
| 7 | Dominique Nierop | 6 | 3 | 2 | 1 | 738,0 | 94,0 | 93,0 | 0 | 1 | 1591 | 1731 | 1573 |
| 8 | Wim de Groot | 10 | 5 | 2 | 3 | 707,5 | 93,0 | 95,0 | 2 | -1 | 1575 | 1615 | 0 |
| 9 | Maurits Bons | 8 | 5 | 0 | 3 | 652,3 | 92,0 | 92,0 | 0 | 2 | 1631 | 1632 | 1635 |
| 10 | Edwin van der Leij | 10 | 5 | 1 | 4 | 626,5 | 91,0 | 90,0 | 0 | 1 | 1510 | 1589 | 1494 |
| 11 | Jan van der Meer | 9 | 4 | 2 | 3 | 615,7 | 90,0 | 86,0 | 1 | 2 | 1577 | 1571 | 1577 |
| 12 | Geert van den Berg | 9 | 5 | 0 | 4 | 610,7 | 89,0 | 89,0 | 1 | 1 | 1534 | 1587 | 1529 |
| 13 | Harald Homulle | 6 | 3 | 1 | 2 | 562,5 | 88,0 | 88,0 | 0 | 1 | 1437 | 1702 | 1403 |
| 14 | Franke Boersma | 6 | 1 | 4 | 1 | 558,5 | 87,0 | 87,0 | 2 | 1 | 1646 | 1651 | 1652 |
| 15 | Koos Croes | 10 | 4 | 1 | 5 | 552,5 | 86,0 | 91,0 | 0 | 1 | 1428 | 1502 | 1420 |
| 16 | Rob Bes | 9 | 4 | 0 | 5 | 526,7 | 85,0 | 83,0 | 1 | 2 | 1532 | 1563 | 1537 |
| 17 | Aad van Eijk | 9 | 3 | 3 | 3 | 497,3 | 84,0 | 80,0 | -1 | -1 | 1573 | 1503 | 1600 |
| 18 | Aad Middeldorp | 11 | 3 | 3 | 5 | 486,7 | 83,0 | 85,0 | 1 | -1 | 1347 | 1304 | 1376 |
| 19 | Michelle de Liefde | 5 | 0 | 3 | 2 | 474,5 | 82,0 | 84,0 | -1 | -2 | 1371 | 1490 | 1363 |
| 20 | Jelle van der Heijde | 4 | 2 | 1 | 1 | 469,8 | 81,0 | 82,0 | -2 | -2 | 1513 | 1553 | 0 |
| 21 | Louis Wulffers | 5 | 1 | 1 | 3 | 438,5 | 80,0 | 79,0 | -1 | -2 | 1307 | 1349 | 1311 |
| 22 | Rene Denie | 9 | 1 | 4 | 4 | 429,5 | 79,0 | 81,0 | -1 | -1 | 1351 | 1391 | 0 |
| 23 | Koos Suijker | 6 | 2 | 0 | 4 | 404,6 | 78,0 | 77,0 | 0 | -1 | 1503 | 1348 | 1537 |
| 24 | Peter Taanman | 5 | 1 | 1 | 3 | 385,5 | 77,0 | 78,0 | -1 | 1 | 1574 | 1360 | 1612 |
| 25 | Mike de Torbal | 8 | 2 | 0 | 6 | 378,0 | 76,0 | 76,0 | 1 | -1 | 1079 | 1119 | 0 |
| 26 | Arno van der Kruijs | 9 | 2 | 1 | 6 | 364,5 | 75,0 | 75,0 | -1 | 1 | 1182 | 1231 | 1187 |
| 27 | Ruud van Dijk | 8 | 1 | 1 | 6 | 262,5 | 74,0 | 73,0 | -2 | -2 | 1171 | 1211 | 0 |
| 28 | Mai Huong Nguyen | 5 | 0 | 0 | 5 | 246,6 | 73,0 | 74,0 | 1 | 1 | 922 | 962 | 0 |
