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Individual Calculations August 2023 |
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| Koswattage, Biman Total change: 94.80 | |   |
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| Sri Lanka Open Chess Championship 2023 | Colombo | SRI | 2023-06-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1639 | 1179 | 3.00 | 6 | 2.56 | 40 | 102.40 | |
|  Alahakoon, Isuru | f | | 1760 | SRI | 0.00 | 1 | -0.02 | 40 | -0.80 | |  Deshappriya, D Kalindu | | | 1369 | SRI | 1.00 | 1 | 0.75 | 40 | 30.00 | | | Chandula, E D S | | | 1659 | SRI | 1.00 | 1 | 0.95 | 40 | 38.00 | | | Pathum, G Saranga | | | 1655 | SRI | 0.50 | 1 | 0.45 | 40 | 18.00 | | | Obeysekara, T A Sajith Chathuran | | | 1684 | SRI | 0.50 | 1 | 0.46 | 40 | 18.40 | | | Laksiri, A A Kavishka Gimshan | | | 1705 | SRI | 0.00 | 1 | -0.03 | 40 | -1.20 | |
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) | | | | Asian Schools Chess Championship U9 Open | Tashkent | UZB | 2023-07-15 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1130 | 1231 | 3.00 | 5 | -0.19 | 40 | -7.60 | |
| | Shambetov, Atai | | | 1084 | KGZ | 1.00 | 1 | 0.30 | 40 | 12.00 | | | Bakyt, Ibrahim | | | 1083 | KAZ | 0.00 | 1 | -0.70 | 40 | -28.00 | | | Kodirov, Axrorbek | | | 1091 | UZB | 1.00 | 1 | 0.31 | 40 | 12.40 | | | Kubanychbekov, Zalkar | | | 1200 | KGZ | 0.00 | 1 | -0.54 | 40 | -21.60 | | | Otetileu, Amanbek | | | 1190 | KAZ | 1.00 | 1 | 0.44 | 40 | 17.60 | |
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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