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Individual Calculations February 2020 |
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| Samarakoon, S M Udani Adithya Total change: 58.80 | |   |
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| Sri Lanka National Youth Chess Championship 2019 - Under 15 years Girls | Colombo | SRI | 2019-12-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1163 | 1121 | 2.50 | 3 | 1.12 | 40 | 44.80 | |
|  Costha, M Yomali Muthumini | | | 1037 | SRI | 0.50 | 1 | -0.12 | 40 | -4.80 | |  Vidanapathirana, Sharmila Taniya | | | 1046 | SRI | 1.00 | 1 | 0.40 | 40 | 16.00 | | | Seneka, M W Thenumi | | | 1407 | SRI | 1.00 | 1 | 0.84 | 40 | 33.60 | |
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) | | | | Battle of the Kings - All Island Schools Team Chess Championship 2020 | Colombo | SRI | 2020-01-03 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1039 | 1149 | 1.00 | 1 | 0.35 | 40 | 14.00 | |
| | Naizadeen, Fathima Shihana | | | 1039 | SRI | 1.00 | 1 | 0.35 | 40 | 14.00 | |
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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