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Individual Calculations July 2009 |
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| Jayaratne, M.n.g. Total change: 1.25 | |   |
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| Galle Major Chess Championship 2009 | Galle | SRI | 2009-04-30 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1904 | 1756 | 1.00 | 3 | 0.09 | 25 | 2.25 | |
|  Gunasinghe, W.a.t.s. | | | 1891 | SRI | 0.50 | 1 | 0.18 | 25 | 4.50 | | | Gunasinghe, S.r. | | | 1940 | SRI | 0.00 | 1 | -0.26 | 25 | -6.50 | | | Subash, Lasitha | | | 1880 | SRI | 0.50 | 1 | 0.17 | 25 | 4.25 | |
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 B Chess Championship 2009 | Colombo | SRI | 2009-05-09 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1941 | 1756 | 1.00 | 4 | -0.04 | 25 | -1.00 | |
|  Fonseka, C.k.d. | | | 1999 | SRI | 0.00 | 1 | -0.20 | 25 | -5.00 | | | Jayawardena, Mihiranga | | | 1920 | SRI | 0.00 | 1 | -0.28 | 25 | -7.00 | | | Chandrarathne, W.s.n. | | | 1933 | SRI | 1.00 | 1 | 0.73 | 25 | 18.25 | | | Alahakoon, A.m.c.b. | | | 1911 | SRI | 0.00 | 1 | -0.29 | 25 | -7.25 | |
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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