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Individual Calculations December 2018 |
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| Jezierski, Colum Total change: -6.20 | |   |
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| Central London Chess Congress Open 2018 | London | ENG | 2018-11-02 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1851 | 1938 | 2.00 | 4 | -0.31 | 20 | -6.20 | |
|  Martinez, Rene M | | | 1619 | ENG | 1.00 | 1 | 0.13 | 20 | 2.60 | |  Healey, Michael W | | | 2112 | ENG | 0.00 | 1 | -0.27 | 20 | -5.40 | | | Morgan, David | | | 1540 | WLS | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Eche, Sylvain | | | 2133 | FRA | 0.00 | 1 | -0.25 | 20 | -5.00 | |
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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