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Individual Calculations March 2015 |
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| Perera, Jayashanka Total change: 28.60 | |   |
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| Colombo Chess Festival 2015 | Colombo | SRI | 2015-01-31 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1729 | 1759 | 6.00 | 8 | 1.89 | 20 | 37.80 | |
|  Theivaseelan, Selvarajah | | | 1359 * | SRI | 1.00 | 1 | 0.08 | 20 | 1.60 | |  Kavinda, Akila | | | 1954 | SRI | 0.50 | 1 | 0.25 | 20 | 5.00 | | | Gamage, Nethmi Nirasha | | | 1485 | SRI | 0.50 | 1 | -0.33 | 20 | -6.60 | | | Ilampoornan, Raguparan | | | 1405 | SRI | 1.00 | 1 | 0.11 | 20 | 2.20 | | | Gunasinghe, W A T S | | | 1895 | SRI | 1.00 | 1 | 0.68 | 20 | 13.60 | | | De Silva, Osheen | | | 1886 | SRI | 0.50 | 1 | 0.17 | 20 | 3.40 | | | Bandara, P M R L | | | 1924 | SRI | 0.50 | 1 | 0.22 | 20 | 4.40 | | | Dissanayake, R S | | | 1920 | SRI | 1.00 | 1 | 0.71 | 20 | 14.20 | | | * 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) | | | | Sri Lanka Major Division Chess Championship 2015 Colombo | Colombo | SRI | 2015-02-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1533 | 1776 | 3.50 | 5 | -0.46 | 20 | -9.20 | |
| | Pallie, Tuan Ehshan | | | 1390 | SRI | 1.00 | 1 | 0.09 | 20 | 1.80 | | | Lakmal, M A C | | | 1531 | SRI | 0.50 | 1 | -0.30 | 20 | -6.00 | | | Anojman, S. | | | 1569 | SRI | 1.00 | 1 | 0.23 | 20 | 4.60 | | | Yaparathne, B K B | | | 1658 | SRI | 0.50 | 1 | -0.16 | 20 | -3.20 | | | Palipana, Kethaka | | | 1515 | SRI | 0.50 | 1 | -0.32 | 20 | -6.40 | |
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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