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Individual Calculations December 2018 |
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| Martelli, Tommaso Total change: -6.80 | |   |
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| Central London Chess Congress Open 2018 | London | ENG | 2018-11-02 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1867 | 1931 | 2.50 | 5 | -0.34 | 20 | -6.80 | |
|  Menzies, Colin | | | 2166 | IRL | 0.00 | 1 | -0.21 | 20 | -4.20 | |  Olufemi, George | | | 1766 | NGR | 0.50 | 1 | -0.22 | 20 | -4.40 | | | Martinez, Rene M | | | 1619 | ENG | 1.00 | 1 | 0.14 | 20 | 2.80 | | | Rudakov, Aleksandr | f | | 2243 | RUS | 0.00 | 1 | -0.14 | 20 | -2.80 | | | Morgan, David | | | 1540 | WLS | 1.00 | 1 | 0.09 | 20 | 1.80 | |
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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