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Individual Calculations December 2017 |
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| Sethiya , A Vinuga Total change: 17.60 | |   |
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| Colombo District Youth Chess Championship 2017 Under 13 Boys (2004-2005) | Colombo | SRI | 2017-10-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1101 | 1116 | 2.00 | 3 | 0.44 | 40 | 17.60 | |
|  Ranasinghe, Supul Demmantha | | | 1008 | SRI | 1.00 | 1 | 0.35 | 40 | 14.00 | |  Bandara, W M Nadil Dulshen | | | 1181 | SRI | 0.50 | 1 | 0.09 | 40 | 3.60 | | | Saravanabaavan, Yughatharoon | | | 1114 | SRI | 0.50 | 1 | 0.00 | 40 | 0.00 | |
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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