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Individual Calculations March 2010 |
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| De Silva, Osheen Total change: -45.90 | |   |
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| Ethugalpura Chess Challenge | Kurunegala, Sri Lanka | SRI | 2009-12-11 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1752 | 1976 | 1.00 | 4 | -2.11 | 15 | -31.65 | |
|  Jayasundara, P K U M | | | 1882 | SRI | 0.00 | 1 | -0.63 | 15 | -9.45 | |  Aktar, M R | | | 1719 | SRI | 1.00 | 1 | 0.18 | 15 | 2.70 | | | Kumara, C M S Pranieth | | | 1737 | SRI | 0.00 | 1 | -0.80 | 15 | -12.00 | | | Jayawardhana, W A S H | | | 1669 | SRI | 0.00 | 1 | -0.86 | 15 | -12.90 | |
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 |
| 1803 | 1976 | 4.00 | 7 | -0.95 | 15 | -14.25 | |
| | Savant, Riya | | | 1576 * | IND | 0.50 | 1 | -0.42 | 15 | -6.30 | | | Ahmed, Fuad | | | 1847 | MDV | 1.00 | 1 | 0.33 | 15 | 4.95 | | | Yaparathne, B K B | | | 1891 | SRI | 0.00 | 1 | -0.62 | 15 | -9.30 | | | Munasinghe, Shanaka | | | 1782 | SRI | 0.50 | 1 | -0.25 | 15 | -3.75 | | | Madushan, K D Tharusha | | | 1679 | SRI | 1.00 | 1 | 0.15 | 15 | 2.25 | | | Senanayake, P R | | wf | 1908 | SRI | 1.00 | 1 | 0.41 | 15 | 6.15 | | | Alahakoon, Isuru | | | 1938 | SRI | 0.00 | 1 | -0.55 | 15 | -8.25 | | | * 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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