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Individual Calculations May 2011 |
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| Kottahachchy, K O V Total change: -5.55 | |   |
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| Sri Lanka National Youth Under 18 Chess Championship 2011 | Colombo | SRI | 2011-04-07 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1843 | 2033 | 4.00 | 6 | -0.37 | 15 | -5.55 | |
|  Rajapakse, R M T C | | | 1656 | SRI | 0.50 | 1 | -0.41 | 15 | -6.15 | |  Jayasuriya, Dinushka | | | 1851 | SRI | 0.50 | 1 | -0.24 | 15 | -3.60 | | | Kuruwita, E Yasas Kalana | | | 1925 | SRI | 0.50 | 1 | -0.15 | 15 | -2.25 | | | Munasinghe, Thisura | | | 1810 | SRI | 1.00 | 1 | 0.22 | 15 | 3.30 | | | Seneviratne, Binura | | | 1737 | SRI | 1.00 | 1 | 0.15 | 15 | 2.25 | | | Perera, W C C | | | 2077 | SRI | 0.50 | 1 | 0.06 | 15 | 0.90 | |
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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