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Individual Calculations February 2019 |
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| Jayasinghe, Miyuni Thisanya Total change: -2.80 | |   |
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| Sri Lanka National Youth Chess Championship 2018 Under - 13 years Girls | Colombo | SRI | 2018-12-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1103 | 1154 | 2.00 | 4 | -0.28 | 40 | -11.20 | |
|  Minsadi, S K Nimna | | | 1004 | SRI | 0.50 | 1 | -0.20 | 40 | -8.00 | |  Wickramasinghe, Minethma Lasandi | | wc | 1364 | SRI | 0.00 | 1 | -0.23 | 40 | -9.20 | | | Prathapaarachchi, Imalmi Manujith | | | 1026 | SRI | 0.50 | 1 | -0.17 | 40 | -6.80 | | | Gunawardena, Senuthi | | | 1017 | SRI | 1.00 | 1 | 0.32 | 40 | 12.80 | |
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) | | | | 7th Kaluthara Chess Festival 2019 | Kaluthara | SRI | 2019-01-11 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1512 | 1139 | 0.50 | 3 | 0.21 | 40 | 8.40 | |
| | Wijekoon, Chandana | c | | 1539 * | SRI | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Rupasinghe, R A L P | | | 1459 | SRI | 0.50 | 1 | 0.37 | 40 | 14.80 | | | Weerakoon, D D P | | | 1539 * | SRI | 0.00 | 1 | -0.08 | 40 | -3.20 | | | * 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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