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Individual Calculations January 2019 |
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| Perera, Dinujaya Thathsara Total change: -12.40 | |   |
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| Kolonnawa Chess Classic 2018 | Colombo | SRI | 2018-12-14 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1318 | 1071 | 0.50 | 4 | -0.31 | 40 | -12.40 | |
|  Gamage, Ovin Vidmal | | | 1471 * | SRI | 0.00 | 1 | -0.08 | 40 | -3.20 | |  Himsara, W A Janidu | | | 1288 | SRI | 0.50 | 1 | 0.28 | 40 | 11.20 | | | Hewawasam, H Y Thisaga Manvidu | | | 1278 | SRI | 0.00 | 1 | -0.23 | 40 | -9.20 | | | Chamathka, Weerasinghe A Chethan | | | 1235 | SRI | 0.00 | 1 | -0.28 | 40 | -11.20 | | | * 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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