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Individual Calculations February 2018 |
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| Perera, D G D Y Adeekshana Total change: 21.20 | |   |
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| Sri Lanka National Youth Chess Championship 2017 and 2018 Under - 15 years | Colombo | SRI | 2017-12-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1309 | 1297 | 4.00 | 7 | 0.53 | 40 | 21.20 | |
|  Liyanage, Ranindu Dilshan | c | | 1697 * | SRI | 0.00 | 1 | -0.08 | 40 | -3.20 | |  Mathangadeera, Tharaka Denuwan | | | 1095 | SRI | 1.00 | 1 | 0.24 | 40 | 9.60 | | | Welivita, W D Osidu Nayanajith | | | 1030 | SRI | 0.50 | 1 | -0.32 | 40 | -12.80 | | | Pamuditha, A L Malith | | | 1157 | SRI | 1.00 | 1 | 0.31 | 40 | 12.40 | | | Alwala, A D Hansaja Ramith | | | 1450 | SRI | 0.50 | 1 | 0.20 | 40 | 8.00 | | | Samarakoon, Hevidu | | | 1499 | SRI | 0.50 | 1 | 0.26 | 40 | 10.40 | | | Devnaka, Chamin | | | 1238 | SRI | 0.50 | 1 | -0.08 | 40 | -3.20 | | | * 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) | | |
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