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Individual Calculations February 2023 |
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| Rajawasala, R U D Janith Dulmina Total change: 118.80 | |   |
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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 |
| 1652 | 1161 | 0.00 | 3 | -0.20 | 40 | -8.00 | |
|  Amarasinghe, A A C B | c | | 1908 | SRI | 0.00 | 1 | 0.00 | 40 | 0.00 | | | Abeysinghe, H M H Janandani | | | 1490 | SRI | 0.00 | 1 | -0.12 | 40 | -4.80 | | | Weerakoon, R K B | | | 1559 | SRI | 0.00 | 1 | -0.08 | 40 | -3.20 | |
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) | | | | Kaluthara International Chess Festival 2023 | Kaluthara | SRI | 2023-01-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1440 | 1161 | 4.50 | 8 | 3.17 | 40 | 126.80 | |
|  Gunaweera, Geenuka Kavinu | | | 1464 | SRI | 0.50 | 1 | 0.36 | 40 | 14.40 | | | Weerasena, O V D K R | | | 1486 | SRI | 1.00 | 1 | 0.87 | 40 | 34.80 | | | Deshappriya, D Kalindu | | | 1486 | SRI | 0.50 | 1 | 0.37 | 40 | 14.80 | | | Jayaweera, Hashan | | | 1441 | SRI | 0.50 | 1 | 0.34 | 40 | 13.60 | | | Askey, Raveen Nimesh | | | 1438 | SRI | 0.50 | 1 | 0.33 | 40 | 13.20 | | | Ovitigala, Chenitha Mithvidu | | | 1380 | SRI | 0.50 | 1 | 0.28 | 40 | 11.20 | | | Lakmal, M A C | | | 1403 | SRI | 1.00 | 1 | 0.80 | 40 | 32.00 | | | Amarathunga, Kosala Sandeepa Cham | | | 1423 | SRI | 0.00 | 1 | -0.18 | 40 | -7.20 | |
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) | | |
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