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Individual Calculations October 2017 |
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| Perera, W S D Sachini Total change: -10.20 | |   |
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| 3rd Negombo Chess Festival 2017 | Negombo, Sri lanka | SRI | 2017-08-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1493 | 1168 | 0.00 | 4 | -0.51 | 20 | -10.20 | |
|  Kodithuwakku, Himsara | | | 1502 | SRI | 0.00 | 1 | -0.12 | 20 | -2.40 | | | De Silva, L M S T | | | 1508 | SRI | 0.00 | 1 | -0.12 | 20 | -2.40 | |  Pathirana, Hasitha Jayanth | | | 1463 | SRI | 0.00 | 1 | -0.15 | 20 | -3.00 | | | Amarasinghe, A M A M | | | 1498 | SRI | 0.00 | 1 | -0.12 | 20 | -2.40 | |
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) | | |
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