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Individual Calculations February 2018 |
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| Costha, M Yomali Muthumini Total change: -25.20 | |   |
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| Sri Lanka National Youth Chess Championship 2017 and 2018 Under - 13 years Girls | Colombo | SRI | 2017-12-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1239 | 1103 | 0.00 | 2 | -0.63 | 40 | -25.20 | |
|  Hetti Arachchige, Thisumi S | | | 1251 | SRI | 0.00 | 1 | -0.30 | 40 | -12.00 | |  Karthikeyan, Kiruththikah | | | 1227 | SRI | 0.00 | 1 | -0.33 | 40 | -13.20 | |
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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