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Individual Calculations July 2023 |
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| Perera, H A Lisanda Vinsith Total change: -46.40 | |   |
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| Damso international Chess Festival 2023 | Ambalangoda | SRI | 2023-05-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1281 | 1456 | 3.00 | 5 | -0.55 | 40 | -22.00 | |
|  Herath, K Praveen Basara | | | 1089 | SRI | 1.00 | 1 | 0.10 | 40 | 4.00 | |  Vishaleni, U | | | 1183 | SRI | 1.00 | 1 | 0.17 | 40 | 6.80 | | | Samaranayake, K P R N | | | 1878 | SRI | 0.00 | 1 | -0.07 | 40 | -2.80 | | | Kannangara, Ranul Insitha | | | 1165 | SRI | 0.00 | 1 | -0.85 | 40 | -34.00 | | | Gamlath, E G Y T | | | 1089 | SRI | 1.00 | 1 | 0.10 | 40 | 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) | | | | SLCA Selection Event for Asian Schools - Under 15 Years | Colombo | SRI | 2023-06-09 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1165 | 1410 | 1.00 | 2 | -0.61 | 40 | -24.40 | |
| | Prematunge, H R Homindu Dulaj | | | 1191 | SRI | 0.50 | 1 | -0.28 | 40 | -11.20 | | | Perera, Sithika | | | 1138 | SRI | 0.50 | 1 | -0.33 | 40 | -13.20 | |
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) | | |
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