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Individual Calculations April 2009 |
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| Mallawarachchi, T.s. Total change: -16.05 | |   |
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| 2nd Colombo Chess Festival '09 | Colombo | SRI | 2009-02-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1881 | 2091 | 4.00 | 5 | 0.27 | 15 | 4.05 | |
|  Seneviratne, Shehan | | | 1741 | SRI | 1.00 | 1 | 0.11 | 15 | 1.65 | | | Munasinghe, Shanaka | | | 1755 | SRI | 1.00 | 1 | 0.12 | 15 | 1.80 | |  Munasinghe, Lahiru | | | 1860 | SRI | 1.00 | 1 | 0.21 | 15 | 3.15 | | | Weerawardena, Romesh | | | 2127 | SRI | 0.00 | 1 | -0.45 | 15 | -6.75 | | | Jayawardena, M. | | | 1921 | SRI | 1.00 | 1 | 0.28 | 15 | 4.20 | |
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 Open International Rating Chess Tournament 2009 | Kandy | SRI | 2009-03-06 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1959 | 2091 | 2.00 | 5 | -1.34 | 15 | -20.10 | |
| | Hapuarachchi, Lahiru | | | 1937 | SRI | 1.00 | 1 | 0.29 | 15 | 4.35 | | | Anuruddha, G.c. | | | 2173 | SRI | 0.00 | 1 | -0.39 | 15 | -5.85 | | | Perera, W.c.c. | | | 1929 | SRI | 0.50 | 1 | -0.21 | 15 | -3.15 | | | Jayawardena, Mihiranga | | | 1921 | SRI | 0.00 | 1 | -0.72 | 15 | -10.80 | | | Premachanddra, Dimithri | | | 1837 | SRI | 0.50 | 1 | -0.31 | 15 | -4.65 | |
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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