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Individual Calculations January 2019 |
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| Rathnayaka, Minaga Yethmin Total change: -13.20 | |   |
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| Ethugalpura International Rating Chess Championship 2018 | Kurunegala | SRI | 2018-12-08 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1307 | 1073 | 0.50 | 4 | -0.33 | 40 | -13.20 | |
|  Ranasinghe, R A Senuka Buddhika | | | 1305 | SRI | 0.00 | 1 | -0.21 | 40 | -8.40 | | | Weerasinghe, W Yasiru | | | 1343 | SRI | 0.00 | 1 | -0.17 | 40 | -6.80 | | | Jayawickrama, U W R K | | | 1298 | SRI | 0.50 | 1 | 0.28 | 40 | 11.20 | |  Herath, H M M D | | | 1283 | SRI | 0.00 | 1 | -0.23 | 40 | -9.20 | |
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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