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Individual Calculations September 2017 |
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| Wijeratne, Tharin Total change: -15.20 | |   |
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| 4th Sri Lanka National Amateur International Rating Chess Championships 2017 | Colombo | SRI | 2017-08-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1170 | 1067 | 1.50 | 5 | -0.38 | 40 | -15.20 | |
|  Adimali, Uvindu Nipunitha | | | 1092 | SRI | 1.00 | 1 | 0.53 | 40 | 21.20 | |  Kanathipan, Thiruchelvan | | | 1403 | SRI | 0.00 | 1 | -0.12 | 40 | -4.80 | | | Weerasooriya, Senith D Jagoda | | | 1105 | SRI | 0.50 | 1 | 0.05 | 40 | 2.00 | | | Pinnagoda, P G Anuhas Suradunu | | | 1143 | SRI | 0.00 | 1 | -0.40 | 40 | -16.00 | | | Saravanabaavan, Yughatharoon | | | 1107 | SRI | 0.00 | 1 | -0.44 | 40 | -17.60 | |
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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