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Individual Calculations September 2017 |
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| De Silva, Osheen Total change: 11.60 | |   |
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| 4th Sri Lanka National Amateur International Rating Chess Championships 2017 | Colombo | SRI | 2017-08-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1671 | 1902 | 7.50 | 9 | 0.58 | 20 | 11.60 | |
|  Chandrajith, B P L | | | 1502 * | SRI | 1.00 | 1 | 0.08 | 20 | 1.60 | |  Kithmal, P M Kalindhu | | | 1502 * | SRI | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Kumarawadu, C S | | | 1573 | SRI | 1.00 | 1 | 0.12 | 20 | 2.40 | | | Jayawardana, Lasal | | | 1669 | SRI | 0.50 | 1 | -0.29 | 20 | -5.80 | | | Jayaweera, Y | | | 1738 | SRI | 1.00 | 1 | 0.28 | 20 | 5.60 | | | Thenuka, Kuruwita Gamalathge Kin | | | 1578 | SRI | 1.00 | 1 | 0.13 | 20 | 2.60 | | | Theekshana, H G Denuwan | | | 1810 | SRI | 0.50 | 1 | -0.13 | 20 | -2.60 | | | Kumara, C M S Praneeth | | | 1775 | SRI | 1.00 | 1 | 0.33 | 20 | 6.60 | | | Danushka, M A N | | | 1888 | SRI | 0.50 | 1 | -0.02 | 20 | -0.40 | | | * 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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