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Individual Calculations June 2023 |
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| Jayaweera, Risali Lohasna Total change: 3.20 | |   |
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| Supr Knights Open International Rating Chess Championship 2023 | Colombo | SRI | 2023-04-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1546 | 1061 | 0.00 | 1 | -0.04 | 40 | -1.60 | |
|  Yaparathne, B K B | | | 1546 | SRI | 0.00 | 1 | -0.04 | 40 | -1.60 | |
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) | | | | Sri Lanka National Youth Chess Championship 2023 - Under 10Yrs Girls | Colombo | SRI | 2023-04-06 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1040 | 1061 | 1.50 | 2 | 0.44 | 40 | 17.60 | |
|  Jayasinghe, J M Senudhi Ahasya | | | 1049 | SRI | 1.00 | 1 | 0.48 | 40 | 19.20 | | | Gomes, J Vaneesha Oshini | | | 1031 | SRI | 0.50 | 1 | -0.04 | 40 | -1.60 | |
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) | | | | Colombo International Chess Festival 2023 | Colombo | SRI | 2023-05-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1353 | 1061 | 0.00 | 2 | -0.32 | 40 | -12.80 | |
| | Rajawasala, R U D Janith Dulmina | | | 1417 | SRI | 0.00 | 1 | -0.11 | 40 | -4.40 | | | Sathsara, E P Daham | | | 1289 | SRI | 0.00 | 1 | -0.21 | 40 | -8.40 | |
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) | | |
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