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Individual Calculations September 2015 |
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| Chamathka, Weerasinghe A Chethan Total change: -17.20 | |   |
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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 |
| 1328 | 1167 | 1.50 | 5 | -0.02 | 40 | -0.80 | |
|  Udagedara, Sandali Kanishka | | | 1535 | SRI | 0.00 | 1 | -0.10 | 40 | -4.00 | |  Dissanayake, Ananya Anjuli | | | 1234 | SRI | 1.00 | 1 | 0.59 | 40 | 23.60 | | | Wijesinghe, W A D Sumudu | | | 1261 | SRI | 0.50 | 1 | 0.13 | 40 | 5.20 | | | Rodrigo, T M Janudi | | | 1379 | SRI | 0.00 | 1 | -0.23 | 40 | -9.20 | | | Pavalachandran, Ashvini | | | 1233 | SRI | 0.00 | 1 | -0.41 | 40 | -16.40 | |
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 |
| 1475 | 1167 | 0.50 | 1 | 0.36 | 40 | 14.40 | |
| | Dhinojjan, R | | | 1475 | SRI | 0.50 | 1 | 0.36 | 40 | 14.40 | |
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) | | | | Sri Lanka Open Chess Championship 2015 | Colombo | SRI | 2015-08-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1352 | 1167 | 0.00 | 3 | -0.77 | 40 | -30.80 | |
| | De Silva, Hansaja | | | 1367 | SRI | 0.00 | 1 | -0.24 | 40 | -9.60 | | | Kalinga, Kalindu Kusalwin | | | 1348 | SRI | 0.00 | 1 | -0.26 | 40 | -10.40 | | | Jayawardana, Lasal | | | 1342 | SRI | 0.00 | 1 | -0.27 | 40 | -10.80 | |
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) | | |
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