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Individual Calculations March 2010 |
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| Premachandra, G T D Total change: -17.70 | |   |
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| 05th Asian Schools Chess Championship under 13 | Colombo | SRI | 2009-12-17 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1781 | 1925 | 2.00 | 5 | -1.47 | 15 | -22.05 | |
|  Yogit, S | | | 1768 | IND | 0.00 | 1 | -0.71 | 15 | -10.65 | | | Kah Meng, Elgin Lee | | | 1861 | MAS | 0.50 | 1 | -0.09 | 15 | -1.35 | | | Munasinghe, Dgsd | | | 1779 | SRI | 0.50 | 1 | -0.20 | 15 | -3.00 | |  Harishman, S | | | 1733 | SRI | 0.50 | 1 | -0.25 | 15 | -3.75 | | | Vithanage, Tharindu | | | 1762 | SRI | 0.50 | 1 | -0.22 | 15 | -3.30 | |
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) | | | | 3rd Colombo International Chess Festival 2010 | Colombo | SRI | 2010-01-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1899 | 1925 | 3.50 | 6 | 0.29 | 15 | 4.35 | |
| | Harishman, S | | | 1733 | SRI | 1.00 | 1 | 0.25 | 15 | 3.75 | | | Peiris, T S S | | | 2016 | SRI | 0.50 | 1 | 0.12 | 15 | 1.80 | | | Wijekoon, Chandana | | | 1974 | SRI | 1.00 | 1 | 0.57 | 15 | 8.55 | | | Kuruwitage, Yasas Kalana | | | 1913 | SRI | 0.50 | 1 | -0.02 | 15 | -0.30 | | | Jayasoma, H B G T | | | 1795 | SRI | 0.00 | 1 | -0.68 | 15 | -10.20 | | | Jayawardena, M | | | 1960 | SRI | 0.50 | 1 | 0.05 | 15 | 0.75 | |
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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