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Individual Calculations August 2012 |
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| Chumfwa, Stanley Total change: -4.50 | |   |
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| 2012 ZAMBIA CLOSED CHESS CHAMPIONSHIP | KITWE | ZAM | 2012-06-30 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2191 | 2358 | 2.50 | 4 | -0.30 | 15 | -4.50 | |
|  Munenga, Douglus | | | 2008 | ZAM | 1.00 | 1 | 0.11 | 15 | 1.65 | |  Jere, Daniel | f | | 2389 | ZAM | 0.00 | 1 | -0.46 | 15 | -6.90 | | | Mwali, Chitumbo | m | | 2207 | ZAM | 0.50 | 1 | -0.20 | 15 | -3.00 | | | Chumfwa, Kelvin | | | 2161 | ZAM | 1.00 | 1 | 0.25 | 15 | 3.75 | |
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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