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Individual Calculations February 2023 |
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| Dharmawansa, S S Total change: -23.60 | |   |
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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 |
| 1187 | 1045 | 0.50 | 4 | -0.75 | 40 | -30.00 | |
|  Hendavitharana, D S | | | 1214 | SRI | 0.00 | 1 | -0.28 | 40 | -11.20 | | | Rathnayake, R M M P B | | | 1129 | SRI | 0.00 | 1 | -0.38 | 40 | -15.20 | | | Bandara, K M W G Lahiru | | | 1198 | SRI | 0.50 | 1 | 0.20 | 40 | 8.00 | |  Marasinghe, Kasunka | | | 1207 | SRI | 0.00 | 1 | -0.29 | 40 | -11.60 | |
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 Inter University Chess Championship 2022 | Colombo | SRI | 2023-01-06 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1323 | 1045 | 0.50 | 2 | 0.16 | 40 | 6.40 | |
| | Mendis, B M A | | | 1368 | SRI | 0.00 | 1 | -0.13 | 40 | -5.20 | | | Jayasinghe, J A A D K | | | 1277 | SRI | 0.50 | 1 | 0.29 | 40 | 11.60 | |
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) | | |
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