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Individual Calculations May 2017 |
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| Pathirana, Luchitha Disal Total change: 24.80 | |   |
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| Colombo Chess Festival 2017 | Colombo | SRI | 2017-04-06 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1302 | 1101 | 0.50 | 2 | -0.01 | 40 | -0.40 | |
|  Lansakara, B M | | | 1405 | SRI | 0.50 | 1 | 0.36 | 40 | 14.40 | | | Cooray, T C M Dulein Kavindu | | | 1199 | SRI | 0.00 | 1 | -0.37 | 40 | -14.80 | |
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) | | | | National Youth Chess Championship 2017 - Under 12 Boys | Colombo | SRI | 2017-04-17 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1195 | 1101 | 2.50 | 5 | 0.63 | 40 | 25.20 | |
|  De Silva, R B V Nimsara | | | 1252 | SRI | 0.50 | 1 | 0.20 | 40 | 8.00 | | | Wijerathne , L M S D | | | 1175 | SRI | 0.00 | 1 | -0.40 | 40 | -16.00 | | | Kiriella, K G T S D | | | 1187 | SRI | 0.50 | 1 | 0.12 | 40 | 4.80 | | | Dalawella, Sanuka Chandul | | | 1177 | SRI | 0.50 | 1 | 0.10 | 40 | 4.00 | | | Perera, M N Akash | | | 1182 | SRI | 1.00 | 1 | 0.61 | 40 | 24.40 | |
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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