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Individual Calculations February 2023 |
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| Bentharaarachchi, Vinuga Ometh Total change: 66.40 | |   |
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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 |
| 1315 | 1361 | 5.00 | 6 | 1.50 | 40 | 60.00 | |
|  Rathnayake, R M R S | | | 1083 | SRI | 1.00 | 1 | 0.17 | 40 | 6.80 | |  Somarathne, L H M G S | | | 1156 | SRI | 1.00 | 1 | 0.24 | 40 | 9.60 | | | Liyanage, Pesandu Rashmitha | | | 1869 | SRI | 0.00 | 1 | -0.04 | 40 | -1.60 | | | Kanchana, W A | | | 1129 | SRI | 1.00 | 1 | 0.21 | 40 | 8.40 | | | Welege , Imantha Lakshan | | | 1121 | SRI | 1.00 | 1 | 0.20 | 40 | 8.00 | | | Weerathungalage, W D Malisha Sasv | | | 1529 | SRI | 1.00 | 1 | 0.72 | 40 | 28.80 | |
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) | | | | Kandy Open International Rating Chess Championships 2022 | Kandy | SRI | 2022-12-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1188 | 1361 | 2.50 | 5 | -1.04 | 40 | -41.60 | |
| | Aththanayaka, A M Chanithu Yunal | | | 1076 | SRI | 0.50 | 1 | -0.34 | 40 | -13.60 | | | Kothalawala, Ramath Hansaka | | | 1095 | SRI | 0.50 | 1 | -0.32 | 40 | -12.80 | | | Abewardhana, Nuhansa Dewlini | | | 1091 | SRI | 1.00 | 1 | 0.17 | 40 | 6.80 | | | Janukshan, B | | | 1556 | SRI | 0.00 | 1 | -0.25 | 40 | -10.00 | | | Welege , Imantha Lakshan | | | 1121 | SRI | 0.50 | 1 | -0.30 | 40 | -12.00 | |
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) | | | | Kaluthara International Chess Festival 2023 | Kaluthara | SRI | 2023-01-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1427 | 1361 | 3.50 | 5 | 1.20 | 40 | 48.00 | |
| | Galappaththi, Chinthaka Anuruddh | f | | 1996 | SRI | 0.00 | 1 | -0.01 | 40 | -0.40 | | | Bandara, Lakshika Sathsarani | | | 1014 | SRI | 1.00 | 1 | 0.11 | 40 | 4.40 | | | Nanayakkara, N W P K W | | | 1049 | SRI | 1.00 | 1 | 0.14 | 40 | 5.60 | | | Askey, Roshell Nathasha | | | 1519 | SRI | 0.50 | 1 | 0.21 | 40 | 8.40 | | | Gamage, Ovin Vidmal | | | 1558 | SRI | 1.00 | 1 | 0.75 | 40 | 30.00 | |
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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