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Individual Calculations February 2023 |
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| Thilakaratne, Hm Sithuka Ranmira Total change: -51.20 | |   |
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| Kandy Open International Rating Chess Championships 2022 | Kandy | SRI | 2022-12-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1057 | 1314 | 2.50 | 4 | -0.76 | 40 | -30.40 | |
|  Wijesinghe, W A H K | | | 1072 | SRI | 1.00 | 1 | 0.20 | 40 | 8.00 | | | Dissanayaka, D A K N R | | | 1036 | SRI | 0.50 | 1 | -0.33 | 40 | -13.20 | |  Gunaratne, Chivath Dathesha | | | 1077 | SRI | 0.50 | 1 | -0.30 | 40 | -12.00 | | | Gunathilaka, Kavinu Sanul | | | 1041 | SRI | 0.50 | 1 | -0.33 | 40 | -13.20 | |
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) | | | | Kaluthara International Chess Festival 2023 | Kaluthara | SRI | 2023-01-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1240 | 1314 | 2.00 | 4 | -0.52 | 40 | -20.80 | |
| | Sivathanujan, S | | | 1849 | SRI | 0.00 | 1 | -0.03 | 40 | -1.20 | | | Isanka, Aminda | | | 1017 | SRI | 0.50 | 1 | -0.35 | 40 | -14.00 | | | Gunasekara, Aritha Chanthula Abes | | | 1079 | SRI | 0.50 | 1 | -0.29 | 40 | -11.60 | | | Bandara, Lakshika Sathsarani | | | 1014 | SRI | 1.00 | 1 | 0.15 | 40 | 6.00 | |
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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