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Individual Calculations December 2017 |
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| Hemachandra, D K S Sethmika Total change: 52.80 | |   |
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| Colombo District Youth Chess Championship 2017 Under 13 Boys (2004-2005) | Colombo | SRI | 2017-10-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1143 | 1004 | 1.00 | 2 | 0.37 | 40 | 14.80 | |
|  Pathirana, Luchitha Disal | | | 1114 | SRI | 0.50 | 1 | 0.15 | 40 | 6.00 | |  Jayawardana, T M A | | | 1172 | SRI | 0.50 | 1 | 0.22 | 40 | 8.80 | |
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 Junior National Chess Championship 2017 | Colombo | SRI | 2017-11-02 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1330 | 1004 | 1.50 | 4 | 0.95 | 40 | 38.00 | |
| | Liyanage, Ranindu Dilshan | c | | 1404 * | SRI | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Kumarasinghe, P Sandaru Kaushal | | | 1194 | SRI | 1.00 | 1 | 0.75 | 40 | 30.00 | | | Bentharaarachchi, Vinuga Ometh | | | 1316 | SRI | 0.50 | 1 | 0.36 | 40 | 14.40 | | | Kodithuwakku, Himsara | | | 1404 * | 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) | | |
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