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Individual Calculations February 2018 |
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| Hetti Arachchige, Thisumi S Total change: 30.80 | |   |
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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 |
| 1230 | 1251 | 4.00 | 6 | 0.77 | 40 | 30.80 | |
|  Costha, M Yomali Muthumini | | | 1103 | SRI | 1.00 | 1 | 0.30 | 40 | 12.00 | |  Kodikara, K K M Sachintha | | wf | 1583 | SRI | 0.50 | 1 | 0.38 | 40 | 15.20 | | | Jayatilaka, W M M Amodya | | | 1371 | SRI | 0.00 | 1 | -0.34 | 40 | -13.60 | | | Senamanthila, Milani | | | 1081 | SRI | 0.50 | 1 | -0.22 | 40 | -8.80 | | | Rathnayake, R M D S | | | 1111 | SRI | 1.00 | 1 | 0.31 | 40 | 12.40 | | | Jayasinghe, Thenugi Dilanya | | | 1133 | SRI | 1.00 | 1 | 0.34 | 40 | 13.60 | |
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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