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Individual Calculations August 2023 |
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| Sithumsa, H G Sasmi Total change: -9.20 | |   |
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| Sri Lanka Open Chess Championship 2023 | Colombo | SRI | 2023-06-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1371 | 1121 | 1.00 | 3 | 0.37 | 40 | 14.80 | |
|  Insara, S D Nadev | | | 1537 | SRI | 0.00 | 1 | -0.07 | 40 | -2.80 | |  Nandasiri, Omiru | | | 1274 | SRI | 1.00 | 1 | 0.70 | 40 | 28.00 | | | De Silva, B P Chanthuli Thanishka | | | 1303 | 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) | | | | Sri Lanka National Team Chess Championship 2023 - Women | Colombo | SRI | 2023-07-07 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1051 | 1125 | 0.00 | 1 | -0.60 | 40 | -24.00 | |
| | Bandara, Lakshika Sathsarani | | | 1051 | SRI | 0.00 | 1 | -0.60 | 40 | -24.00 | |
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) | | |
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