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Individual Calculations February 2023 |
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| Samarakoon, Sasndu Ayod Total change: 19.20 | |   |
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| Asia Schools CC 2022- U 9 O | Kaluthara | SRI | 2022-12-05 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1101 | 1004 | 1.50 | 2 | 0.75 | 40 | 30.00 | |
|  Perera , A A Sethun Senhas | | | 1019 | SRI | 1.00 | 1 | 0.52 | 40 | 20.80 | | | Mukanov, Iskender | | | 1183 | KGZ | 0.50 | 1 | 0.23 | 40 | 9.20 | |
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) | | | | Kandy Open International Rating Chess Championships 2022 | Kandy | SRI | 2022-12-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1278 | 1004 | 0.50 | 4 | -0.27 | 40 | -10.80 | |
| | Manuranga, D Lahiru | | | 1503 | SRI | 0.00 | 1 | -0.04 | 40 | -1.60 | |  Thilakaratna, B A Thevindu Kenula | | | 1202 | SRI | 0.50 | 1 | 0.26 | 40 | 10.40 | | | Prematunge, H R Homindu Dulaj | | | 1229 | SRI | 0.00 | 1 | -0.22 | 40 | -8.80 | | | Rajakaruna, Nuhansa | | | 1176 | SRI | 0.00 | 1 | -0.27 | 40 | -10.80 | |
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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