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Individual Calculations September 2015 |
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| Karunarathna, Nuthara Dulandee Total change: -29.20 | |   |
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| National Women's Amateur Chess Championship 2015 | Colombo | SRI | 2015-08-05 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1126 | 1074 | 0.00 | 2 | -0.86 | 40 | -34.40 | |
|  Karunarathna, Thilini Savindya | | | 1146 | SRI | 0.00 | 1 | -0.40 | 40 | -16.00 | | | De Silva, Thenuki Hirunima | | | 1106 | SRI | 0.00 | 1 | -0.46 | 40 | -18.40 | |
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) | | | | 6th Kandy Open International Rating Chess Championship | Kandy | SRI | 2015-08-10 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1325 | 1074 | 1.00 | 4 | 0.13 | 40 | 5.20 | |
|  Gunarathna, D A Viraj Darshana | | | 1474 * | SRI | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Wijerathne, Surath | | | 1422 | SRI | 0.00 | 1 | -0.11 | 40 | -4.40 | | | Palangoda, U P G M Sasmitha | | | 1099 | SRI | 1.00 | 1 | 0.53 | 40 | 21.20 | | | Vidyarathna, Anjitha | | | 1303 | SRI | 0.00 | 1 | -0.21 | 40 | -8.40 | | | * 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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