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Individual Calculations February 2018 |
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| Rathnayake, R M D S Total change: -13.60 | |   |
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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 |
| 1233 | 1111 | 1.00 | 4 | -0.34 | 40 | -13.60 | |
|  Seneka, M W Thenumi | | | 1275 | SRI | 0.00 | 1 | -0.28 | 40 | -11.20 | | | Jayasinghe, J A V A T | | | 1155 | SRI | 1.00 | 1 | 0.56 | 40 | 22.40 | | | Premanath, Prasansa | | | 1252 | SRI | 0.00 | 1 | -0.31 | 40 | -12.40 | |  Hetti Arachchige, Thisumi S | | | 1251 | SRI | 0.00 | 1 | -0.31 | 40 | -12.40 | |
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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