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Individual Calculations May 2010 |
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| Wijekoon, Chandana Total change: -3.00 | |   |
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| Sri Lanka Open Chess Championship | Kandy | SRI | 2010-03-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1997 | 1961 | 2.00 | 5 | -0.37 | 15 | -5.55 | |
|  Seneviratne, Binura | | | 1711 | SRI | 0.50 | 1 | -0.31 | 15 | -4.65 | | | Sanjay, N | | | 2310 | IND | 0.00 | 1 | -0.11 | 15 | -1.65 | | | Kulasekara, Kashapa D M T | | | 1870 | SRI | 0.50 | 1 | -0.12 | 15 | -1.80 | |  Wettasinha, Vasanta | | | 1822 | SRI | 1.00 | 1 | 0.31 | 15 | 4.65 | | | Russell, M K A | | | 2272 | SRI | 0.00 | 1 | -0.14 | 15 | -2.10 | |
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) | | | | Sri Lanka Major Division Colombo Chess Championship 2010 | Colombo | SRI | 2010-04-07 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1835 | 1961 | 3.50 | 5 | 0.17 | 15 | 2.55 | |
| | Rabel, Chinthaka | | | 1784 | SRI | 1.00 | 1 | 0.27 | 15 | 4.05 | | | Kavikeshawa, Pb | | | 1889 | SRI | 0.50 | 1 | -0.10 | 15 | -1.50 | | | Senanayake, Pd | | | 1848 | SRI | 0.50 | 1 | -0.15 | 15 | -2.25 | | | Munasinghe, Shanaka | | | 1800 | SRI | 0.50 | 1 | -0.21 | 15 | -3.15 | | | Jayasoma, Gevin | | | 1855 | SRI | 1.00 | 1 | 0.36 | 15 | 5.40 | |
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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