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Individual Calculations February 2020 |
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| Wanasinghe, Dinitha Sandul Total change: 12.00 | |   |
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| Sri Lanka National Amateur Chess Championship 2019 | Colombo | SRI | 2019-12-19 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1256 | 1015 | 0.50 | 2 | 0.03 | 40 | 1.20 | |
|  Bandara, Dhanushka | | | 1415 * | SRI | 0.00 | 1 | -0.08 | 40 | -3.20 | |  Laksandu, R A Chamath | | | 1097 | SRI | 0.50 | 1 | 0.11 | 40 | 4.40 | | | * 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) | | | | Sri Lanka National Youth Chess Championship 2019 - Under 11 years | Colombo | SRI | 2019-12-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1212 | 1015 | 1.00 | 3 | 0.27 | 40 | 10.80 | |
| | Gunathilake, M D Vinuda Shenal | | | 1244 | SRI | 0.00 | 1 | -0.21 | 40 | -8.40 | | | Dhanushikan, G | | | 1213 | SRI | 1.00 | 1 | 0.76 | 40 | 30.40 | | | Wickramaarachchi, Nayanaka Insara | | | 1179 | SRI | 0.00 | 1 | -0.28 | 40 | -11.20 | |
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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