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Individual Calculations February 2023 |
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| Lankatilleke, Sathindu Vidujaya Total change: -9.60 | |   |
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| Ethugalpura Open International Rating Chess Championships 2022 | Kurunegala | SRI | 2022-12-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1406 | 1183 | 1.00 | 3 | 0.35 | 40 | 14.00 | |
|  Amarathunga, Kosala Sandeepa Cham | | | 1423 | SRI | 0.00 | 1 | -0.20 | 40 | -8.00 | |  Chandrasiri, P K | | | 1374 | SRI | 0.50 | 1 | 0.25 | 40 | 10.00 | | | Rathnayaka, Minaga Yethmin | | | 1420 | SRI | 0.50 | 1 | 0.30 | 40 | 12.00 | |
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) | | | | Kandy Open International Rating Chess Championships 2022 | Kandy | SRI | 2022-12-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1311 | 1183 | 1.00 | 4 | -0.59 | 40 | -23.60 | |
| | Madushanka, Harsha | | | 1691 | SRI | 0.00 | 1 | -0.04 | 40 | -1.60 | | | Bandara, M M Jovindu J | | | 1016 | SRI | 0.50 | 1 | -0.22 | 40 | -8.80 | | | Jayasinghe, D Senethmi | | | 1045 | SRI | 0.50 | 1 | -0.19 | 40 | -7.60 | | | Yapa Bandara, Chamodya | | | 1490 | SRI | 0.00 | 1 | -0.14 | 40 | -5.60 | |
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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