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Individual Calculations September 2015 |
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| Ranasinghe, C N Total change: -20.40 | |   |
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| National Amateur Chess Championship 2015 | Colombo | SRI | 2015-08-05 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1452 | 1796 | 2.50 | 4 | -1.02 | 20 | -20.40 | |
|  Birunthaban, Rajendram | | | 1396 * | SRI | 0.50 | 1 | -0.42 | 20 | -8.40 | |  Perera, S D Tharindu | | | 1396 * | SRI | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Askey, Raveen Nimesh | | | 1530 | SRI | 0.50 | 1 | -0.32 | 20 | -6.40 | | | Nandika, Ruwan | | | 1486 | SRI | 0.50 | 1 | -0.36 | 20 | -7.20 | | | * 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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