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Individual Calculations January 2019 |
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| Kodithuwakku, Himsara Total change: 99.20 | |   |
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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 |
| 1574 | 1601 | 2.00 | 3 | 0.43 | 40 | 17.20 | |
|  Kulasekara, D M T Kashyapa | | | 1879 | SRI | 1.00 | 1 | 0.83 | 40 | 33.20 | | | Ranasinghe, P K | | | 1596 | SRI | 0.00 | 1 | -0.51 | 40 | -20.40 | |  Rangajeewa, M G Sachithra Sandar | | | 1246 | SRI | 1.00 | 1 | 0.11 | 40 | 4.40 | |
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) | | | | Kolonnawa Chess Classic 2018 | Colombo | SRI | 2018-12-14 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1555 | 1601 | 6.50 | 8 | 2.05 | 40 | 82.00 | |
| | Gamage, A G R Ruwanmith | | | 1201 * | SRI | 1.00 | 1 | 0.08 | 40 | 3.20 | | | Rasanjana, U G S Y | | | 1290 | SRI | 1.00 | 1 | 0.14 | 40 | 5.60 | | | Samaraweera, Dimuth Indeepa | | | 1437 | SRI | 1.00 | 1 | 0.28 | 40 | 11.20 | | | De Silva, J I Ajantha | | | 1371 | SRI | 1.00 | 1 | 0.21 | 40 | 8.40 | | | De Silva, Osheen | | | 1814 | SRI | 1.00 | 1 | 0.77 | 40 | 30.80 | | | Amarasinghe, A A C B | | | 1922 | SRI | 0.50 | 1 | 0.37 | 40 | 14.80 | | | Saravanabaavan, Brijeash | | | 1469 | SRI | 1.00 | 1 | 0.32 | 40 | 12.80 | | | Randil, Lakshitha | | | 1935 | SRI | 0.00 | 1 | -0.12 | 40 | -4.80 | | | * 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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