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Individual Calculations September 2015 |
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| Siriwardena, Janaka Total change: -48.80 | |   |
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| Sri Lanka Open Chess Championship 2015 | Colombo | SRI | 2015-08-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1390 | 1554 | 5.00 | 9 | -1.22 | 40 | -48.80 | |
|  Weerasinghe, Liseni | | | 1154 * | SRI | 1.00 | 1 | 0.08 | 40 | 3.20 | |  Priyankara, Chamil | | | 1954 * | SRI | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Rajendram, Branavan | | | 1197 | SRI | 0.50 | 1 | -0.39 | 40 | -15.60 | | | Gunatunga, K D Ovindu Mandith | | | 1198 | SRI | 1.00 | 1 | 0.11 | 40 | 4.40 | | | Lakshan, G Dilina Udeepa | | | 1292 | SRI | 1.00 | 1 | 0.18 | 40 | 7.20 | | | Pradeep, Kumar R A | | | 1954 * | IND | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Deraniyagala, Vimukthi Prathap | | | 1289 | SRI | 0.50 | 1 | -0.32 | 40 | -12.80 | | | Jayawickrama, U W R K | | | 1289 | SRI | 0.00 | 1 | -0.82 | 40 | -32.80 | | | Sanudula, K M Dahamdi | | | 1180 | SRI | 1.00 | 1 | 0.10 | 40 | 4.00 | | | * 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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