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Individual Calculations February 2023 |
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| Abeysekera, Bises Oneja Total change: 10.00 | |   |
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| Kandy Open International Rating Chess Championships 2022 | Kandy | SRI | 2022-12-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1351 | 1115 | 1.50 | 4 | 0.68 | 40 | 27.20 | |
|  Chandrasiri, P K | | | 1374 | SRI | 1.00 | 1 | 0.82 | 40 | 32.80 | |  Wickramasinghe, M G D Chathura | | | 1370 | SRI | 0.50 | 1 | 0.31 | 40 | 12.40 | | | Bandara, W M Malitha | | | 1361 | SRI | 0.00 | 1 | -0.19 | 40 | -7.60 | | | Pathmasiri, R D Isuru Saranga | | | 1297 | SRI | 0.00 | 1 | -0.26 | 40 | -10.40 | |
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) | | | | Colombo District Youth Chess Championships 2023 - Under 18 | Dehiwala | SRI | 2023-01-06 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1162 | 1115 | 0.00 | 1 | -0.43 | 40 | -17.20 | |
| | Nawanjana, R A Thaweesha | | | 1162 | SRI | 0.00 | 1 | -0.43 | 40 | -17.20 | |
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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