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Individual Calculations February 2018 |
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| Epa, W Buthmi J Total change: 37.20 | |   |
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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 |
| 1221 | 1300 | 4.50 | 6 | 0.93 | 40 | 37.20 | |
|  Atapattu, Thenugi Linaya | | | 1010 | SRI | 0.50 | 1 | -0.34 | 40 | -13.60 | | | Pabasara, K A Rathmi | | | 1068 | SRI | 1.00 | 1 | 0.21 | 40 | 8.40 | |  Wickramasinghe, Thesandi | | | 1230 | SRI | 1.00 | 1 | 0.40 | 40 | 16.00 | | | Withanarachchi, W A P V | | | 1167 | SRI | 1.00 | 1 | 0.32 | 40 | 12.80 | | | Dahampriya, H K T Dewnethmie | | | 1480 | SRI | 0.50 | 1 | 0.24 | 40 | 9.60 | | | Jayatilaka, W M M Amodya | | | 1371 | SRI | 0.50 | 1 | 0.10 | 40 | 4.00 | |
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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