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Individual Calculations November 2023 |
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| Samaraweera, S M Sethika Hansira Total change: -74.80 | |   |
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| Sri Lanka Junior National Chess Championship 2023 | Kandy | SRI | 2023-08-18 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1175 | 1265 | 2.00 | 5 | -1.17 | 40 | -46.80 | |
|  Jayalath, P M C V | | | 1038 | SRI | 0.00 | 1 | -0.79 | 40 | -31.60 | | | Hiyarapitiya, G A | | | 1076 | SRI | 1.00 | 1 | 0.25 | 40 | 10.00 | | | Sumanathilake, Yonal | | | 1646 | SRI | 0.00 | 1 | -0.09 | 40 | -3.60 | |  Kalhan, S Vojitha | | | 1049 | SRI | 0.00 | 1 | -0.78 | 40 | -31.20 | | | Assen, Aidh Aadil | | | 1066 | SRI | 1.00 | 1 | 0.24 | 40 | 9.60 | |
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) | | | | Kandy Open International Rating Chess Championships 2023 | Kandy | SRI | 2023-09-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1205 | 1265 | 4.00 | 8 | -0.70 | 40 | -28.00 | |
| | Karunarathna, Yanula | | | 1078 | SRI | 0.50 | 1 | -0.24 | 40 | -9.60 | | | Gunarathne, K Venuka Vidunitha | | | 1026 | SRI | 1.00 | 1 | 0.20 | 40 | 8.00 | | | Lavanga, D Binuka | | | 1471 | SRI | 0.00 | 1 | -0.24 | 40 | -9.60 | | | Galagama, Sathindu | | | 1135 | SRI | 0.00 | 1 | -0.68 | 40 | -27.20 | | | Fernando, Mayon Dinuth Mindula | | | 1094 | SRI | 1.00 | 1 | 0.27 | 40 | 10.80 | | | Rodrigo, Lohas Dewmina | | | 1095 | SRI | 0.50 | 1 | -0.22 | 40 | -8.80 | | | De Silva, K H Kalpa | | | 1131 | SRI | 1.00 | 1 | 0.32 | 40 | 12.80 | | | Gunasekara, W A N Senpathi | | | 1613 | SRI | 0.00 | 1 | -0.11 | 40 | -4.40 | |
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) | | |
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