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Individual Calculations January 2019 |
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| Perera, D Upashan L Total change: -60.40 | |   |
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| Sri Lanka Inter Club B Chess Championship 2018 | Colombo | SRI | 2018-12-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1689 | 1486 | 0.50 | 4 | -0.65 | 40 | -26.00 | |
|  Kalugampitiya, R S | f | | 1886 * | SRI | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Wimalasuriya, Kasun M. | c | | 1881 | SRI | 0.00 | 1 | -0.08 | 40 | -3.20 | |  Alahakoon, T N | | | 1730 | SRI | 0.00 | 1 | -0.20 | 40 | -8.00 | | | De Silva, K H Kalpa | | | 1257 | SRI | 0.50 | 1 | -0.29 | 40 | -11.60 | | | * 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) | | | | Kolonnawa Chess Classic 2018 | Colombo | SRI | 2018-12-14 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1169 | 1486 | 6.00 | 8 | -0.86 | 40 | -34.40 | |
| | Gunawardena, Anuth Methvin | | | 1086 * | SRI | 1.00 | 1 | 0.08 | 40 | 3.20 | | | Selvarajah, Selvendra | | | 1258 | SRI | 0.00 | 1 | -0.79 | 40 | -31.60 | | | Wanigasekera, Dulaj Dasith Alwis | | | 1086 * | SRI | 1.00 | 1 | 0.08 | 40 | 3.20 | | | Methiyra, G P Detumina | | | 1208 | SRI | 0.00 | 1 | -0.83 | 40 | -33.20 | | | Mallawaaratchi, M Januthi S B | | | 1086 * | SRI | 1.00 | 1 | 0.08 | 40 | 3.20 | | | Edirisinghe, Shanuka Dulnath | | | 1110 | SRI | 1.00 | 1 | 0.09 | 40 | 3.60 | | | Rangajeewa, M G Sachithra Sandar | | | 1246 | SRI | 1.00 | 1 | 0.20 | 40 | 8.00 | | | Perera, S D Lahiru | | | 1274 | SRI | 1.00 | 1 | 0.23 | 40 | 9.20 | | | * 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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