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Individual Calculations August 2023 |
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| Perera, G Thinuka Geethula Total change: -94.00 | |   |
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| Sri Lanka Open Chess Championship 2023 | Colombo | SRI | 2023-06-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1217 | 1575 | 4.00 | 7 | -2.18 | 40 | -87.20 | |
|  Fernando, B Thisula Dewsarana | | | 1088 | SRI | 0.50 | 1 | -0.46 | 40 | -18.40 | |  Perera, P K Jagath | | | 1114 | SRI | 1.00 | 1 | 0.05 | 40 | 2.00 | | | Silva, U M Himaya Shalindi | | | 1239 | SRI | 0.00 | 1 | -0.88 | 40 | -35.20 | | | Suraweera, Dulin Hansilu | | | 1175 * | SRI | 1.00 | 1 | 0.08 | 40 | 3.20 | | | Attanayake, A M N R | | | 1203 | SRI | 1.00 | 1 | 0.10 | 40 | 4.00 | | | Wimalasiri, Ransith Pabalu | | | 1373 | SRI | 0.50 | 1 | -0.26 | 40 | -10.40 | | | Chamathka, W A Chethani | | | 1326 | SRI | 0.00 | 1 | -0.81 | 40 | -32.40 | | | * Rating difference of more than 400. Please read more at FIDE Handbook |
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) | | | | Asian Schools Chess Championship U15 Open | Tashkent | UZB | 2023-07-15 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1674 | 1496 | 2.00 | 6 | -0.17 | 40 | -6.80 | |
| | Sumanathilake, Yonal | | | 1483 | SRI | 0.00 | 1 | -0.52 | 40 | -20.80 | | | Omonov, Asrorjon | | | 2160 | UZB | 0.00 | 1 | -0.01 | 40 | -0.40 | | | Turksoi, Zhanpolat | | | 1688 | KGZ | 0.00 | 1 | -0.25 | 40 | -10.00 | | | Azizov, Bekhroz | | | 1301 | UZB | 1.00 | 1 | 0.25 | 40 | 10.00 | | | Sobirov, Afruzbek | | | 1426 | UZB | 1.00 | 1 | 0.40 | 40 | 16.00 | | | Karimov, Shakhrombek | | | 1983 | UZB | 0.00 | 1 | -0.04 | 40 | -1.60 | |
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) | | |
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