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Individual Calculations April 2009 |
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| Fonseka, C.k.d. Total change: -20.70 | |   |
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| The Inaugural Royal Challenge International Chess Championship 2009 | Colombo | SRI | 2009-01-10 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1906 | 2020 | 1.00 | 4 | -1.61 | 15 | -24.15 | |
|  Egodage, T.s. | | | 1826 | SRI | 0.00 | 1 | -0.75 | 15 | -11.25 | |  Jayawardena, Mihiranga | | | 1921 | SRI | 1.00 | 1 | 0.36 | 15 | 5.40 | | | Hapuarachchi, H.l.m. | | | 1937 | SRI | 0.00 | 1 | -0.61 | 15 | -9.15 | | | Kuruwitage, Yasas Kalana | | | 1938 | SRI | 0.00 | 1 | -0.61 | 15 | -9.15 | |
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) | | | | 2nd Colombo Chess Festival '09 | Colombo | SRI | 2009-02-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2120 | 2020 | 1.00 | 2 | 0.23 | 15 | 3.45 | |
| | Deshmukh, Anup | m | | 2311 | IND | 0.00 | 1 | -0.15 | 15 | -2.25 | | | Perera, W.c.c. | | | 1929 | SRI | 1.00 | 1 | 0.38 | 15 | 5.70 | |
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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