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Individual Calculations May 2011 |
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| Ambanwela, Lumbini Total change: -4.80 | |   |
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| Sri Lanka National Youth under 18 Girls Chess Championship 2011 | Colombo | SRI | 2011-04-07 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1730 | 1791 | 2.00 | 4 | -0.32 | 15 | -4.80 | |
|  Abeywardena, N T | | | 1691 | SRI | 1.00 | 1 | 0.36 | 15 | 5.40 | |  Thilakawardana, Supeshala | | wf | 1767 | SRI | 0.00 | 1 | -0.53 | 15 | -7.95 | | | Perera, Anjana | | wc | 1832 | SRI | 0.50 | 1 | 0.06 | 15 | 0.90 | | | Jayawardhana, W A S H | | | 1630 | SRI | 0.50 | 1 | -0.21 | 15 | -3.15 | |
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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