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Individual Calculations September 2018 |
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| Rajapaksha, Isum Asitha Total change: -6.40 | |   |
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| Sri Lanka Open International Rating Chess Championship 2018 | Colombo | SRI | 2018-08-22 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1457 | 1174 | 0.50 | 4 | -0.16 | 40 | -6.40 | |
|  Siriwardane, A L | | | 1448 | SRI | 0.00 | 1 | -0.17 | 40 | -6.80 | | | Gunarathne, Senila Amaneth | c | | 1465 | SRI | 0.00 | 1 | -0.15 | 40 | -6.00 | |  Naushad, Thalaal | | | 1541 | SRI | 0.50 | 1 | 0.40 | 40 | 16.00 | | | Weerasinghe, Isum | | | 1373 | SRI | 0.00 | 1 | -0.24 | 40 | -9.60 | |
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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