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Individual Calculations February 2019 |
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| Yapabandara, Y Total change: 4.40 | |   |
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| Sri Lanka National Youth Chess Championship 2018 Under - 13 years | Colombo | SRI | 2018-12-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1274 | 1120 | 1.00 | 3 | 0.11 | 40 | 4.40 | |
|  Himsara, W A Janidu | | | 1288 | SRI | 0.50 | 1 | 0.22 | 40 | 8.80 | |  Arunakirinathan, Aruthran | | | 1265 | SRI | 0.50 | 1 | 0.19 | 40 | 7.60 | | | Ahangama, Senuka Aswin | | | 1269 | SRI | 0.00 | 1 | -0.30 | 40 | -12.00 | |
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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