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Individual Calculations March 2010 |
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| Aktar, M R Total change: 81.50 | |   |
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| Ethugalpura Chess Challenge | Kurunegala, Sri Lanka | SRI | 2009-12-11 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1985 | 1719 | 1.50 | 3 | 0.93 | 25 | 23.25 | |
|  Anuruddha, G C | | | 2119 * | SRI | 0.50 | 1 | 0.42 | 25 | 10.50 | | | De Silva, Osheen | | | 1976 | SRI | 0.00 | 1 | -0.18 | 25 | -4.50 | | | Sushrutha, Reddy | | | 1861 | IND | 1.00 | 1 | 0.69 | 25 | 17.25 | | | * 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) | | | | 05th Asian Schools Chess Championship under 15 | Colombo | SRI | 2009-12-17 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1866 | 1719 | 2.00 | 5 | 0.40 | 25 | 10.00 | |
| | Pinto, Semuthu | | | 1839 | SRI | 0.50 | 1 | 0.16 | 25 | 4.00 | |  Munasinghe, Lahiru | | | 1917 | SRI | 0.00 | 1 | -0.24 | 25 | -6.00 | | | Kodisinghe, Hirushika | | | 1590 | SRI | 1.00 | 1 | 0.33 | 25 | 8.25 | | | Patil, Pratik | | | 2045 | IND | 0.00 | 1 | -0.13 | 25 | -3.25 | | | Perera, W C C | | | 1937 | SRI | 0.50 | 1 | 0.28 | 25 | 7.00 | |
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) | | | | Sri Lanka Inter Clubs Super League Chess Championship | Colombo | SRI | 2010-02-04 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1950 | 1719 | 3.50 | 7 | 1.93 | 25 | 48.25 | |
| | Dissanayake, R S | | | 2005 | SRI | 0.00 | 1 | -0.16 | 25 | -4.00 | | | Kavinda, Akhila | | | 2019 | SRI | 0.00 | 1 | -0.15 | 25 | -3.75 | | | Prabajith, Asela | | | 1862 | SRI | 1.00 | 1 | 0.69 | 25 | 17.25 | | | Munasinghe, Shanaka | | | 1782 | SRI | 1.00 | 1 | 0.59 | 25 | 14.75 | | | Kumarasinghe, A S | | | 1972 | SRI | 1.00 | 1 | 0.81 | 25 | 20.25 | | | Weerawardane, R | | | 2119 * | SRI | 0.00 | 1 | -0.08 | 25 | -2.00 | | | Lamahewa, S | | | 1892 | SRI | 0.50 | 1 | 0.23 | 25 | 5.75 | | | * 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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