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Individual Calculations February 2019 |
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| Godakumbura, Nethmi Anuththara Total change: 23.20 | |   |
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| Sri Lanka National Youth Chess Championship 2018 Under - 13 years Girls | Colombo | SRI | 2018-12-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1236 | 1018 | 1.50 | 4 | 0.58 | 40 | 23.20 | |
|  Poththewala, Chamindi | | | 1322 | SRI | 1.00 | 1 | 0.86 | 40 | 34.40 | | | Weerasiri, H P Sayuni Chamathna | | | 1155 | SRI | 0.50 | 1 | 0.18 | 40 | 7.20 | |  Srilal, D A D T | | | 1281 | SRI | 0.00 | 1 | -0.18 | 40 | -7.20 | | | Karthikeyan, Kiruththikah | | | 1184 | SRI | 0.00 | 1 | -0.28 | 40 | -11.20 | |
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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