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Individual Calculations June 2023 |
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| Rathnagoda, R B Sadew Denuwan Total change: 30.40 | |   |
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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 |
| 1362 | 1215 | 2.50 | 5 | 0.73 | 40 | 29.20 | |
|  Lamahewa, S | | | 1702 | SRI | 0.00 | 1 | -0.04 | 40 | -1.60 | | | Ovitigala, Dehain Nethvidu | | | 1108 | SRI | 1.00 | 1 | 0.35 | 40 | 14.00 | |  Askey, Roshell Nathasha | | | 1498 | SRI | 1.00 | 1 | 0.84 | 40 | 33.60 | | | Induwara, T H D Thisarindu | | | 1446 | SRI | 0.00 | 1 | -0.21 | 40 | -8.40 | | | Peiris, P Gimshan Sathsara | | | 1057 | SRI | 0.50 | 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) | | | | Colombo International Chess Festival 2023 | Colombo | SRI | 2023-05-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1502 | 1157 | 0.50 | 3 | 0.03 | 40 | 1.20 | |
| | Wijekoon, Chandana | c | | 1750 | SRI | 0.00 | 1 | -0.02 | 40 | -0.80 | | | Rathnayake, R M Dulinma Hemalni | | | 1439 | SRI | 0.50 | 1 | 0.34 | 40 | 13.60 | | | Wimalasiri, Ransith Pabalu | | | 1318 | 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) | | |
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