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Individual Calculations November 2023 |
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| Madawala, R M I S B Total change: 21.60 | |   |
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| Sri Lanka Junior National Chess Championship 2023 | Kandy | SRI | 2023-08-18 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1282 | 1087 | 2.00 | 5 | 0.68 | 40 | 27.20 | |
|  Dissanayake, D M S L | | | 1359 | SRI | 0.00 | 1 | -0.17 | 40 | -6.80 | | | Gunawardhane, Dunitha Yathindra | | | 1350 | SRI | 1.00 | 1 | 0.82 | 40 | 32.80 | |  Sathsara, E P Daham | | | 1315 | SRI | 0.00 | 1 | -0.21 | 40 | -8.40 | | | Wickramarathne, D Jehan Randil | | | 1359 | SRI | 0.50 | 1 | 0.33 | 40 | 13.20 | | | Karunarathna, Umeth | | | 1025 | SRI | 0.50 | 1 | -0.09 | 40 | -3.60 | |
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) | | | | Kandy Open International Rating Chess Championships 2023 | Kandy | SRI | 2023-09-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1315 | 1087 | 0.50 | 3 | -0.14 | 40 | -5.60 | |
| | Rathnayake, R M M P B | | | 1271 | SRI | 0.50 | 1 | 0.24 | 40 | 9.60 | | | De Silva, B P Chanthuli Thanishka | | | 1328 | SRI | 0.00 | 1 | -0.20 | 40 | -8.00 | | | Wickramarathne, D Jehan Randil | | | 1346 | 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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