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Individual Calculations August 2015 |
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| Daka, Justin Total change: -34.40 | |   |
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| Kafue Open Chess Championship 2015 | Kafue | ZAM | 2015-05-23 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2290 | 2086 | 0.00 | 2 | -0.48 | 40 | -19.20 | |
|  Chumfwa, Kelvin | m | | 2268 | ZAM | 0.00 | 1 | -0.26 | 40 | -10.40 | | | Chumfwa, Stanley | m | | 2311 | ZAM | 0.00 | 1 | -0.22 | 40 | -8.80 | |
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) | | | NOTE: K factor changed | | Heroes & Unity Chess Championship - 2015 | Lusaka | ZAM | 2015-07-05 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2130 | 2086 | 1.00 | 4 | -0.76 | 20 | -15.20 | |
| | Luanja, Geoffrey | | | 2073 | ZAM | 0.50 | 1 | -0.02 | 20 | -0.40 | | | Phiri, Godwin | | | 2148 | ZAM | 0.50 | 1 | 0.09 | 20 | 1.80 | |  Chumfwa, Kelvin | m | | 2241 | ZAM | 0.00 | 1 | -0.29 | 20 | -5.80 | | | Dimba, James | c | | 2057 | ZAM | 0.00 | 1 | -0.54 | 20 | -10.80 | |
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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