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Individual Calculations April 2009 |
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| Abeywickrama, Samadhi S.p. Total change: 0.00 | |   |
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| The Inaugural Royal Challenge International Chess Championship 2009 | Colombo | SRI | 2009-01-10 |
| Rc | Ro | w | n | change | Rp | K | K*chg | Game |
| 2092 | 0 | 0.00 | 1 | 0.00 | 1392 | | 0.00 | |
|  Kurukulasuriya, Prasanna | | | 2092 | SRI | 0.00 | 1 | 0.00 | | 0.00 | |
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) | | | | 2nd Colombo Chess Festival '09 | Colombo | SRI | 2009-02-20 |
| Rc | Ro | w | n | change | Rp | K | K*chg | Game |
| 1877 | 0 | 1.50 | 4 | 0.00 | 1790 | | 0.00 | |
| | Rathnayake, Jeewanthi | | | 1553 | SRI | 0.50 | 1 | 0.00 | | 0.00 | |  Amarasinghe, A.a.c.b. | | | 1925 | SRI | 0.50 | 1 | 0.00 | | 0.00 | | | Mallawarachchi, T.s. | | | 2091 | SRI | 0.50 | 1 | 0.00 | | 0.00 | | | Hapuarachchi, H.l.m. | | | 1937 | SRI | 0.00 | 1 | 0.00 | | 0.00 | |
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) | | |
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