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Individual Calculations January 2019 |
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| Ahangama, Senuka Aswin Total change: -65.60 | |   |
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| Ethugalpura International Rating Chess Championship 2018 | Kurunegala | SRI | 2018-12-08 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1054 | 1269 | 4.50 | 7 | -0.93 | 40 | -37.20 | |
|  Viduranga, Oshadha | | | 1062 | SRI | 0.50 | 1 | -0.27 | 40 | -10.80 | |  Uyanwaththa, W M S B | | | 1042 | SRI | 0.50 | 1 | -0.29 | 40 | -11.60 | | | Thennakoon, Rumethma | | | 1033 | SRI | 1.00 | 1 | 0.20 | 40 | 8.00 | | | Edirisinghe, D D | | | 1063 | SRI | 0.50 | 1 | -0.26 | 40 | -10.40 | | | Ranasinghe, R A S C | | | 1053 | SRI | 1.00 | 1 | 0.22 | 40 | 8.80 | | | Ekanayake, Chameli | | | 1021 | SRI | 0.50 | 1 | -0.31 | 40 | -12.40 | | | De Silva, L H L Manuja Lakshitha | | | 1102 | SRI | 0.50 | 1 | -0.22 | 40 | -8.80 | |
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 |
| 1344 | 1269 | 0.50 | 3 | -0.71 | 40 | -28.40 | |
| | Pathirana, Luchitha Disal | | | 1141 | SRI | 0.00 | 1 | -0.67 | 40 | -26.80 | | | Jayawardana, Chenuka Nethvidu | | | 1456 | SRI | 0.00 | 1 | -0.26 | 40 | -10.40 | | | Weerasinghe, Isum | | | 1434 | SRI | 0.50 | 1 | 0.22 | 40 | 8.80 | |
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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