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Individual Calculations March 2015 |
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| Idirisinghe, I M N H Total change: 34.80 | |   |
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| Colombo Chess Festival 2015 | Colombo | SRI | 2015-01-31 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1477 | 1218 | 1.00 | 4 | 0.27 | 40 | 10.80 | |
|  Nanayakkara, J A G Ganganath | | | 1522 | SRI | 1.00 | 1 | 0.86 | 40 | 34.40 | |  Ranasinghe, Shalini | | | 1513 | SRI | 0.00 | 1 | -0.15 | 40 | -6.00 | | | Siriwardena, G T D | | | 1448 | SRI | 0.00 | 1 | -0.21 | 40 | -8.40 | | | Chamikara, H M D R Dilusha | | | 1426 | SRI | 0.00 | 1 | -0.23 | 40 | -9.20 | |
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) | | | | Women's Qualifying 2015 Kurunegala | Kurunegala | SRI | 2015-02-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1369 | 1218 | 1.50 | 3 | 0.60 | 40 | 24.00 | |
| | Batawala, N Navodya | | | 1427 | SRI | 0.00 | 1 | -0.23 | 40 | -9.20 | | | Vithanage, Sandaruwi M | | | 1346 | SRI | 1.00 | 1 | 0.67 | 40 | 26.80 | | | Danawalavithana, D.w. A.g, H. | | | 1334 | SRI | 0.50 | 1 | 0.16 | 40 | 6.40 | |
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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