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Individual Calculations February 2019 |
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| Merriman, John Total change: -7.20 | |   |
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| London Christmas Chess Congress Open Under 18-21 | London | ENG | 2018-12-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1982 | 2261 | 4.50 | 6 | -0.36 | 20 | -7.20 | |
|  Isaksen, Peter A | | | 1898 | ENG | 1.00 | 1 | 0.10 | 20 | 2.00 | |  Giles, Yasmin | | | 1942 | ENG | 1.00 | 1 | 0.13 | 20 | 2.60 | | | McCullough, Simon L | | | 2066 | ENG | 0.00 | 1 | -0.75 | 20 | -15.00 | | | Anilkumar, Anantha P | | | 1862 | ENG | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Golding, Alex | | | 2264 | ENG | 0.50 | 1 | 0.00 | 20 | 0.00 | | | Stubbs, Oliver | | | 1861 * | ENG | 1.00 | 1 | 0.08 | 20 | 1.60 | | | * Rating difference of more than 400. Please read more at FIDE Handbook |
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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