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Individual Calculations May 2011 |
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| Abeywardena, N T Total change: -11.85 | |   |
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| Sri Lanka Open International Rating Tournament 2011 | Colombo | SRI | 2011-03-02 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1858 | 1691 | 0.50 | 4 | -0.72 | 15 | -10.80 | |
|  Vishnu, Prasanna V | m | | 2091 * | IND | 0.00 | 1 | -0.08 | 15 | -1.20 | |  Senanayake, P R | | wf | 1847 | SRI | 0.50 | 1 | 0.21 | 15 | 3.15 | | | Ahmed, Fuad | | | 1817 | MDV | 0.00 | 1 | -0.33 | 15 | -4.95 | | | Weerakoon, D D P | | | 1678 | SRI | 0.00 | 1 | -0.52 | 15 | -7.80 | | | * 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 National Youth under 18 Girls Chess Championship 2011 | Colombo | SRI | 2011-04-07 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1676 | 1691 | 2.00 | 4 | -0.07 | 15 | -1.05 | |
| | Ambanwela, Lumbini | | | 1791 | SRI | 0.00 | 1 | -0.36 | 15 | -5.40 | | | Jayawardhana, W A S H | | | 1630 | SRI | 1.00 | 1 | 0.42 | 15 | 6.30 | | | Abeywickrama, S S P | | | 1766 | SRI | 0.50 | 1 | 0.10 | 15 | 1.50 | | | Koswattha K, W D M D I | | | 1517 | SRI | 0.50 | 1 | -0.23 | 15 | -3.45 | |
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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