Kees Wessels, onze mathemagiër
Ook dit seizoen worden wekelijks, of eigenlijk zelfs per partij, de ELO-ratings van de huidige leden van Schaakvereniging Sliedrecht geactualiseerd. Startwaarden zijn de ratings na het seizoen 2019/2020, en meegeteld worden alle partijen uit de interne competitie alsmede alle door Sliedrechters behaalde resultaten in RSB- of KNSB-wedstrijden en officiële toernooien, zoals ONJK, ONK, Fourmies, enzovoorts.
Ook de uitslagen van de KNSB/RSB-jeugdcompetitie en kampioenschappen worden verwerkt. Ook worden de uitslagen van de jeugdcompetitie meegenomen. Zo zijn deze ratings uitgegroeid tot de meest zuivere cijfers.
De actieve clubleden en hun rating per 1 april 2021 zijn:
| Id | Name | Actual | Start | Change | Np. | Timestamp | ||
|---|---|---|---|---|---|---|---|---|
| 1. | 8076706 | Peter van den Bergh | 2120 | 2126 | -6 | 912 | 2020-10-02 | |
| 2. | 8097551 | Niels Mijnster | 2117 | 2131 | -14 | 727 | 2020-09-24 | |
| 3. | 8416254 | Adrian Mensing | 2071 | 2085 | -14 | 475 | 2020-10-09 | |
| 4. | 6757608 | Wim Pool | 2051 | 2055 | -4 | 491 | 2020-10-09 | |
| 5. | 7520359 | Arjan van der Leij | 2051 | 2059 | -8 | 111 | 2020-10-09 | |
| 6. | 7966849 | Tobias Dekker | 2021 | 2021 | 0 | 277 | 2020-02-14 | |
| 7. | 7445141 | Teunis den Rooijen | 1991 | 1970 | 21 | 205 | 2020-09-10 | |
| 8. | 8434382 | William Gijsen | 1986 | 1992 | -6 | 666 | 2020-10-09 | |
| 9. | 7440422 | Tim Schakel | 1973 | 1978 | -5 | 40 | 2020-10-02 | |
| 10. | 6149759 | Wim Hokken | 1956 | 1936 | 20 | 845 | 2020-10-09 | |
| 11. | 8044729 | Robert van Rekom | 1953 | 1943 | 10 | 868 | 2020-09-17 | |
| 12. | 8416143 | Andrew Mensing | 1949 | 1949 | 0 | 475 | 2020-03-07 | |
| 13. | 7669486 | Willem Barendswaard | 1927 | 1942 | -15 | 54 | 2020-09-24 | |
| 14. | 8329530 | Jorik Klein | 1918 | 1901 | 17 | 788 | 2020-09-24 | |
| 15. | 5801081 | Theo Dekker | 1899 | 1899 | 0 | 143 | 2019-04-13 | |
| 16. | 6959898 | Meinte Smink | 1879 | 1869 | 10 | 62 | 2020-10-09 | |
| 17. | 6140563 | Wout Boer | 1877 | 1883 | -6 | 582 | 2020-10-09 | |
| 18. | 7243731 | Kees Wessels | 1867 | 1871 | -4 | 851 | 2020-10-09 | |
| 19. | 8174276 | Arjan Kreukniet | 1855 | 1860 | -5 | 3 | 2020-09-24 | |
| 20. | 6050517 | Hans Klein | 1848 | 1886 | -38 | 538 | 2020-10-09 | |
| 21. | 6068777 | Jerry van Rekom | 1843 | 1863 | -20 | 813 | 2020-10-09 | |
| 22. | 7490054 | Pieter Pons | 1830 | 1830 | 0 | 129 | 2020-01-09 | |
| 23. | 8651401 | Dana Verheij | 1819 | 1904 | -85 | 151 | 2020-10-09 | |
| 24. | 7181966 | Johan van de Griend | 1749 | 1751 | -2 | 209 | 2020-10-09 | |
| 25. | 7169305 | Willem Kuiper | 1735 | 1735 | 0 | 287 | 2020-02-14 | |
| 26. | 6016813 | Frank Stoute | 1711 | 1711 | 0 | 13 | 2019-11-28 | |
| 27. | 8291756 | Jurgen de Haan | 1686 | 1682 | 4 | 520 | 2020-09-24 | |
| 28. | 6948557 | Kees van der Does | 1673 | 1673 | 0 | 248 | 2020-03-07 | |
| 29. | 8044080 | Joost Stoker | 1672 | 1680 | -8 | 609 | 2020-10-09 | |
| 30. | 6131400 | Henk Prins | 1667 | 1690 | -23 | 580 | 2020-10-09 | |
| 31. | 8203646 | Martijn Stoker | 1667 | 1658 | 9 | 340 | 2020-09-17 | |
| 32. | 7626751 | Henk van der Hoek | 1619 | 1591 | 28 | 59 | 2020-10-02 | |
| 33. | 8012884 | Peter Vis | 1613 | 1638 | -25 | 744 | 2020-10-02 | |
| 34. | 8631843 | Yaro van Beest | 1605 | 1562 | 43 | 172 | 2020-09-24 | |
| 35. | 8049415 | Pieter Blokland | 1597 | 1597 | 0 | 266 | 2019-10-24 | |
| 36. | 7771478 | Bert Dobber | 1565 | 1587 | -22 | 75 | 2020-10-09 | |
| 37. | 7982480 | Jaap Euser | 1528 | 1578 | -50 | 122 | 2020-10-09 | |
| 38. | 8469593 | Luana Mensing | 1525 | 1525 | 0 | 363 | 2020-10-09 | |
| 39. | 8283121 | Tjerry Hut | 1516 | 1516 | 0 | 57 | 2020-02-18 | |
| 40. | 8408411 | Hans Vink | 1443 | 1443 | 0 | 153 | 2020-03-12 | |
| 41. | 8587579 | Sami al-Yassin | 1440 | 1427 | 13 | 148 | 2020-10-09 | |
| 42. | 8813354 | Arco van Houwelingen | 1437 | 1441 | -4 | 90 | 2020-10-09 | |
| 43. | 6131576 | Martin Prins | 1428 | 1450 | -22 | 433 | 2020-10-09 | |
| 44. | 7397313 | André van Dieën | 1403 | 1407 | -4 | 523 | 2020-09-24 | |
| 45. | 8819492 | Vincent Langstraat | 1367 | 1362 | 5 | 70 | 2020-10-22 | |
| 46. | 8398005 | Koos van den Berg | 1325 | 1327 | -2 | 286 | 2020-09-24 | |
| 47. | 8886372 | Khaled Klib | 1317 | 1317 | 0 | 13 | 2020-02-27 | |
| 48. | 8460166 | Marcel Klein | 1315 | 1314 | 1 | 279 | 2020-10-09 | |
| 49. | 8819514 | Willem Theunisse | 1314 | 1271 | 43 | 66 | 2020-10-09 | |
| 50. | 8863492 | Simon Kadijk | 1295 | 1263 | 32 | 28 | 2020-10-09 | |
| 51. | 8796007 | Louis Liu | 1295 | 1260 | 35 | 5 | 2020-10-03 | |
| 52. | 7705907 | Henri Hartog | 1280 | 1316 | -36 | 693 | 2020-10-09 | |
| 53. | 8859752 | Theo Theunisse | 1268 | 1271 | -3 | 45 | 2020-10-22 | |
| 54. | 8597457 | Tim de Waard | 1258 | 1252 | 6 | 179 | 2020-09-24 | |
| 55. | 8839292 | Joas Berkhouwer | 1240 | 1254 | -14 | 62 | 2020-10-22 | |
| 56. | 8493364 | Rik Versteeg | 1231 | 1214 | 17 | 96 | 2020-10-09 | |
| 57. | 8856353 | Jabber al-Yassin | 1231 | 1202 | 29 | 57 | 2020-10-22 | |
| 58. | 8819503 | Sven Langstraat | 1224 | 1212 | 12 | 76 | 2020-10-22 | |
| 59. | 8596654 | Ricardo Veen | 1200 | 1159 | 41 | 89 | 2020-09-24 | |
| 60. | 8653942 | Karel Peursem | 1191 | 1172 | 19 | 106 | 2020-10-22 | |
| 61. | 8430618 | Michiel van den Berg | 1187 | 1200 | -13 | 205 | 2020-10-02 | |
| 62. | 8703893 | Julian van Dieën | 1160 | 1120 | 40 | 115 | 2020-10-22 | |
| 63. | 8657869 | Ferhat Erdogan | 1158 | 1117 | 41 | 164 | 2020-10-09 | |
| 64. | 8564204 | Maarten Hartkoren | 1155 | 1148 | 7 | 179 | 2020-10-09 | |
| 65. | 8886394 | Jurrian Verweij | 1147 | 1036 | 111 | 25 | 2020-10-22 | |
| 66. | 7792620 | Mark van Hulst | 1147 | 1168 | -21 | 603 | 2020-10-09 | |
| 67. | 7353236 | Leo Koppelaar | 1145 | 1153 | -8 | 641 | 2020-10-09 | |
| 68. | 8799054 | Jelle Peursem | 1144 | 1156 | -12 | 80 | 2020-10-22 | |
| 69. | 8899418 | Niels Theunisse | 1128 | 1092 | 36 | 19 | 2020-10-22 | |
| 70. | 8856375 | Bram Theunisse | 1126 | 1142 | -16 | 38 | 2020-10-22 | |
| 71. | 8886405 | Roël Koopman | 1125 | 1131 | -6 | 24 | 2020-10-22 | |
| 72. | 8796953 | Jaimy Bakker | 1115 | 1123 | -8 | 85 | 2020-10-22 | |
| 73. | 8839303 | Daniël van Leeuwen | 1099 | 1128 | -29 | 73 | 2020-09-24 | |
| 74. | 8863481 | Jasper van Wijngaarden | 1078 | 1091 | -13 | 23 | 2020-09-17 | |
| 75. | 8282516 | Roland Kop | 1076 | 1071 | 5 | 330 | 2020-09-03 | |
| 76. | 8614276 | Johan Gijsen | 1068 | 1113 | -45 | 221 | 2020-10-09 | |
| 77. | 8839347 | Justin Sloots | 1066 | 1078 | -12 | 49 | 2020-10-22 | |
| 78. | 8336097 | Stefan van der Waal | 1065 | 1000 | 65 | 17 | 2020-10-02 | |
| 79. | 8737971 | Joshua Koers | 1065 | 1000 | 65 | 7 | 2020-10-09 | |
| 80. | 8760598 | Milan Kanthasamy | 1059 | 1000 | 59 | 90 | 2020-10-22 | |
| 81. | 8830371 | Mike Boom | 1052 | 1016 | 36 | 62 | 2020-10-09 | |
| 82. | 8918844 | Jona Nederlof | 1048 | 1000 | 48 | 7 | 2020-09-24 | |
| 83. | 8851546 | Lieke de Rover | 1046 | 1032 | 14 | 33 | 2020-10-22 | |
| 84. | 8851524 | Ribas Kruidenier | 1031 | 1033 | -2 | 52 | 2020-09-03 | |
| 85. | 8819481 | Seth van Houwelingen | 1027 | 1062 | -35 | 69 | 2020-10-22 | |
| 86. | 8796931 | Angel Theivendram | 1021 | 1001 | 20 | 69 | 2020-10-22 | |
| 87. | 8851535 | Christie de Rover | 1019 | 1030 | -11 | 40 | 2020-10-22 | |
| 88. | 8918833 | Rik Slagboom | 1017 | 1016 | 1 | 11 | 2020-09-24 | |
| 89. | 8616850 | Sharujan Ratnam | 1006 | 1055 | -49 | 162 | 2020-10-22 | |
| 90. | 8486885 | Cees Moes | 1003 | 1028 | -25 | 257 | 2020-10-02 | |
| 91. | 8813343 | Shamiera Ratnam | 1002 | 1010 | -8 | 85 | 2020-10-22 | |
| 92. | 8899429 | Isaac Theivendram | 1000 | 1000 | 0 | 5 | 2020-10-22 | |
| 93. | 8851557 | Lavan Kamalaruban | 1000 | 1000 | 0 | 57 | 2020-10-22 | |
| 94. | 8918822 | Gerard van der Meijden | 1000 | 1000 | 0 | 10 | 2020-10-22 | |
| 95. | 8924300 | Janneke Westhoven | 1000 | 1000 | 0 | 0 | 2021-03-01 | |
| 96. | 8886383 | Lars van Dongelen | 1000 | 1000 | 0 | 16 | 2020-09-03 | |
| 97. | 8918855 | Gabriël van Valen | 1000 | 1000 | 0 | 7 | 2020-10-22 | |
| 98. | 8924289 | Rien Lodder | 1000 | 1000 | 0 | 0 | 2021-03-01 |
