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Individual Calculations February 2018 |
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| Abhayawardhana, Nirodhi Sachetha Total change: -13.60 | |   |
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| Sri Lanka National Youth Chess Championship 2017 and 2018 Under - 15 years Girls | Colombo | SRI | 2017-12-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1349 | 1107 | 0.00 | 4 | -0.90 | 40 | -36.00 | |
|  Idirisinghe, I M N H | | | 1417 | SRI | 0.00 | 1 | -0.14 | 40 | -5.60 | | | Thaneskumar, Thamilamathy | | | 1122 | SRI | 0.00 | 1 | -0.48 | 40 | -19.20 | | | Wijesinghe, W A D Sumudu | | | 1348 | SRI | 0.00 | 1 | -0.20 | 40 | -8.00 | |  Askey, Roshell Nathasha | | | 1507 * | 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) | | | | 22nd Battle of the Kings Inter School Team Chess Championship 2018 | Colombo | SRI | 2018-01-19 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1119 | 1098 | 1.50 | 2 | 0.56 | 40 | 22.40 | |
| | Sandhanayaka, S D P S | | | 1037 | SRI | 1.00 | 1 | 0.42 | 40 | 16.80 | | | Wickramasuriya, Kenolee | | | 1201 | SRI | 0.50 | 1 | 0.14 | 40 | 5.60 | |
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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