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Individual Calculations December 2021 |
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| Couwenberg, Pieter Total change: 8.80 | |   |
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| Open Nederlands Kampioenschap NSVG 2021 groep A | Ermelo | NED | 2021-11-25 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1563 | 1651 | 3.50 | 5 | 0.44 | 20 | 8.80 | |
|  De Jong, Lucas | | | 1653 | NED | 1.00 | 1 | 0.50 | 20 | 10.00 | |  Boer, Jan | | | 1698 | NED | 0.00 | 1 | -0.43 | 20 | -8.60 | | | Spoelstra, Jan | | | 1438 | NED | 1.00 | 1 | 0.23 | 20 | 4.60 | | | Tesselaar, Cor | | | 1443 | NED | 0.50 | 1 | -0.27 | 20 | -5.40 | | | Gundogmus, Alaettin | | | 1583 | NED | 1.00 | 1 | 0.41 | 20 | 8.20 | |
Rc - average rating of rated opponents, Ro - rating of a player in a tournament, Rp - rating performance of an unrated player, W - points won in a tournament against rated opponents, N - total number of games against rated opponents, Change - change used for calculation according to formula, K - development coefficient, Kchg - rating change of a player calculated as (K * change) | | |
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