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Individual Calculations February 2019 |
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| Mapa, M M W H Total change: 16.80 | |   |
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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 |
| 1156 | 1297 | 4.50 | 6 | 0.42 | 40 | 16.80 | |
|  Samarakoon, Rashmi Vihara | | | 1018 | SRI | 1.00 | 1 | 0.16 | 40 | 6.40 | |  Shazna Lye, Gnei | | | 1105 | SRI | 0.00 | 1 | -0.75 | 40 | -30.00 | | | Subasinghe, S M T D | | | 1091 | SRI | 1.00 | 1 | 0.24 | 40 | 9.60 | | | Abeysinghe, Irushi Layanga | | | 1138 | SRI | 0.50 | 1 | -0.21 | 40 | -8.40 | | | Wickramasinghe, Thesandi | | | 1220 | SRI | 1.00 | 1 | 0.39 | 40 | 15.60 | | | Wickramasinghe, Minethma Lasandi | | wc | 1364 | SRI | 1.00 | 1 | 0.59 | 40 | 23.60 | |
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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