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Individual Calculations February 2023 |
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| Herath, H M S S A Total change: -37.40 | |   |
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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 |
| 1246 | 1399 | 4.00 | 8 | -1.59 | 20 | -31.80 | |
|  Wadduwage, Thamindu Upeksha | | | 1135 | SRI | 0.50 | 1 | -0.32 | 20 | -6.40 | |  Piyathilaka, Oshadhi Ruwanya | | | 1099 | SRI | 1.00 | 1 | 0.15 | 20 | 3.00 | | | Weerawardane, Romesh | m | | 1919 | SRI | 0.00 | 1 | -0.03 | 20 | -0.60 | | | Perera, W Chamoth Chiranda | | | 1045 | SRI | 1.00 | 1 | 0.11 | 20 | 2.20 | | | Suvethican, V | | | 1122 | SRI | 0.50 | 1 | -0.33 | 20 | -6.60 | | | De Silva, B P Chanthuli Thanishka | | | 1373 | SRI | 0.50 | 1 | -0.04 | 20 | -0.80 | | | Samaraweera, S M Sethika Hansira | | | 1144 | SRI | 0.50 | 1 | -0.31 | 20 | -6.20 | | | Sugathadasa, Sasiru Hansana | | | 1132 | SRI | 0.00 | 1 | -0.82 | 20 | -16.40 | |
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) | | | | Kaluthara International Chess Festival 2023 | Kaluthara | SRI | 2023-01-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1091 | 1399 | 4.00 | 5 | -0.28 | 20 | -5.60 | |
| | Perera, Sachith Lakshan | | | 1032 | SRI | 0.50 | 1 | -0.40 | 20 | -8.00 | | | Yatawara, Pamodya Indeewari | | | 1007 | SRI | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Thalgaswatta, N S | | | 1132 | SRI | 0.50 | 1 | -0.32 | 20 | -6.40 | | | Madurawala, M G D S Shanuka | | | 1120 | SRI | 1.00 | 1 | 0.16 | 20 | 3.20 | | | Nawanjana, R A Thaweesha | | | 1162 | SRI | 1.00 | 1 | 0.20 | 20 | 4.00 | |
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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