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Individual Calculations February 2019 |
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| Dissanayake, D A Thavinsa Archani Total change: -48.40 | |   |
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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 |
| 1277 | 1089 | 0.00 | 3 | -0.77 | 40 | -30.80 | |
|  Wijesinghe, W M M N | | | 1247 | SRI | 0.00 | 1 | -0.29 | 40 | -11.60 | | | Withanarachchi, W A P V | | | 1262 | SRI | 0.00 | 1 | -0.27 | 40 | -10.80 | |  Poththewala, Chamindi | | | 1322 | SRI | 0.00 | 1 | -0.21 | 40 | -8.40 | |
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 |
| 1381 | 1108 | 0.50 | 5 | -0.44 | 40 | -17.60 | |
| | Wettasinha, Vasanta | | | 1508 * | SRI | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Madusanka, L D P | | | 1508 * | SRI | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Gamage, M Nuwanthi Silva | | | 1229 | SRI | 0.50 | 1 | 0.16 | 40 | 6.40 | | | Nanayakkara, P N J | | | 1325 | SRI | 0.00 | 1 | -0.22 | 40 | -8.80 | | | Seneka, M W Thenumi | | | 1333 | SRI | 0.00 | 1 | -0.22 | 40 | -8.80 | | | * 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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