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Individual Calculations February 2018 |
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| Fonseka, G Sadinu Kowsika Total change: -22.80 | |   |
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| Sri Lanka National Youth Chess Championship 2017 and 2018 Under - 13 years | Colombo | SRI | 2017-12-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1154 | 1049 | 0.50 | 3 | -0.57 | 40 | -22.80 | |
|  Rathnayake, H M Dham Pulindu | | | 1149 | SRI | 0.50 | 1 | 0.14 | 40 | 5.60 | |  Gunasinghe, K D A N | | | 1180 | SRI | 0.00 | 1 | -0.32 | 40 | -12.80 | | | Pathirana, Luchitha Disal | | | 1132 | SRI | 0.00 | 1 | -0.39 | 40 | -15.60 | |
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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