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Individual Calculations February 2023 |
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| Amarathunga, H G Gayuni Hansali Total change: 15.20 | |   |
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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 |
| 1224 | 1012 | 0.00 | 2 | -0.46 | 40 | -18.40 | |
|  Basnayake, K B B M Dinuga Sanketh | | | 1250 | SRI | 0.00 | 1 | -0.20 | 40 | -8.00 | |  Bandara, K M W G Lahiru | | | 1198 | 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) | | | | Kandy Open International Rating Chess Championships 2022 | Kandy | SRI | 2022-12-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1243 | 1012 | 2.00 | 5 | 0.84 | 40 | 33.60 | |
| | Mapa, M M W H | | | 1501 | SRI | 0.00 | 1 | -0.04 | 40 | -1.60 | | | De Silva, S N K | | | 1168 | SRI | 0.50 | 1 | 0.21 | 40 | 8.40 | | | Siriwardene, R B Sithum Nevanjith | | | 1171 | SRI | 0.00 | 1 | -0.29 | 40 | -11.60 | | | Ranasinghe, R A Lihini Himansa | | | 1197 | SRI | 1.00 | 1 | 0.74 | 40 | 29.60 | | | Wijesinghe, W A M C | | | 1176 | SRI | 0.50 | 1 | 0.22 | 40 | 8.80 | |
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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