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Individual Calculations February 2019 |
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| Vidyarathna, W H S Total change: -31.60 | |   |
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| Sri Lanka National Youth Chess Championship 2018 Under - 15 years Girls | Colombo | SRI | 2018-12-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1249 | 1191 | 1.00 | 4 | -0.79 | 40 | -31.60 | |
|  Fernando, G W Nethmi L | | | 1555 | SRI | 0.00 | 1 | -0.10 | 40 | -4.00 | |  Ramanayake, Dulma Vishmini | | | 1020 | SRI | 1.00 | 1 | 0.27 | 40 | 10.80 | | | Weerasinghe, Asani Sankalpana | | | 1420 | SRI | 0.00 | 1 | -0.21 | 40 | -8.40 | | | Karunarathna, Nuthara Dulandee | | | 1002 | SRI | 0.00 | 1 | -0.75 | 40 | -30.00 | |
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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