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Individual Calculations January 2020 |
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| Jayasekara, Buvidu Dilhan Total change: 36.80 | |   |
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| The Kolonnawa Chess Classic International Rating Tournament 2019 | Colombo | SRI | 2019-12-13 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1389 | 1131 | 1.50 | 3 | 0.92 | 40 | 36.80 | |
|  Siriwardena, Janaka | | | 1505 | SRI | 1.00 | 1 | 0.90 | 40 | 36.00 | |  Selvarajah, Selvendra | | | 1302 | SRI | 0.00 | 1 | -0.27 | 40 | -10.80 | | | Maheeshan, Gayan | | | 1360 | SRI | 0.50 | 1 | 0.29 | 40 | 11.60 | |
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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