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Individual Calculations July 2009 |
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| Chandrarathne, W.s.n Total change: -14.75 | |   |
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| Kurunegala Major Chess Championship | Kurunegala | SRI | 2009-04-25 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1877 | 1933 | 3.00 | 5 | 0.14 | 25 | 3.50 | |
|  Alahakoon, A.m.c.b | | | 1911 | SRI | 1.00 | 1 | 0.47 | 25 | 11.75 | |  Pinto, Semuthu | | | 1887 | SRI | 1.00 | 1 | 0.44 | 25 | 11.00 | | | Liyanage, N.p | | | 1938 | SRI | 0.00 | 1 | -0.49 | 25 | -12.25 | | | Amarasinghe, A.a.c.b.j.b | | | 1901 | SRI | 0.00 | 1 | -0.54 | 25 | -13.50 | | | Kumara, C.m.s.p | | | 1746 | SRI | 1.00 | 1 | 0.26 | 25 | 6.50 | |
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 |
| 1913 | 1933 | 3.50 | 8 | -0.73 | 25 | -18.25 | |
| | Alahakoon, Isuru | | | 1947 | SRI | 0.50 | 1 | 0.02 | 25 | 0.50 | | | Wijekoon, Chandana | | | 1965 | SRI | 0.00 | 1 | -0.46 | 25 | -11.50 | | | Pinto, Semuthu | | | 1887 | SRI | 1.00 | 1 | 0.44 | 25 | 11.00 | | | Jayarathne, M.n.g. | | | 1756 | SRI | 0.00 | 1 | -0.73 | 25 | -18.25 | | | Ranasinghe, C.n. | | | 1860 | SRI | 1.00 | 1 | 0.40 | 25 | 10.00 | | | Weerawardena, R. | | | 2180 | SRI | 0.00 | 1 | -0.19 | 25 | -4.75 | | | Munasinghe, Shanaka | | | 1791 | SRI | 1.00 | 1 | 0.31 | 25 | 7.75 | | | Perera, W.c.c. | | | 1917 | SRI | 0.00 | 1 | -0.52 | 25 | -13.00 | |
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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