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Individual Calculations January 2019 |
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| Charith, Dilshan Total change: -26.20 | |   |
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| Kolonnawa Chess Classic 2018 | Colombo | SRI | 2018-12-14 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1222 | 1598 | 0.50 | 2 | -1.31 | 20 | -26.20 | |
|  Lavanga, D Binuka | | | 1198 * | SRI | 0.00 | 1 | -0.92 | 20 | -18.40 | |  Welangalla, Nenitha | | | 1245 | SRI | 0.50 | 1 | -0.39 | 20 | -7.80 | | | * Rating difference of more than 400. Please read more at FIDE Handbook |
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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