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Individual Calculations April 2008 |
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| Hettiarachchi, A.u. Total change: -44.25 | |   |
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| Sri Lanka National B Chess Championships 2007 | Colombo | SRI | 2007-07-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1935 | 2030 | 1.00 | 4 | -1.52 | 25 | -38.00 | |
|  Karunanayake, M.methm | | | 1904 | SRI | 1.00 | 1 | 0.33 | 25 | 8.25 | |  Athavan, R.k | | | 1934 | SRI | 0.00 | 1 | -0.63 | 25 | -15.75 | | | Liyanage, N.p | | | 1966 | SRI | 0.00 | 1 | -0.59 | 25 | -14.75 | | | De, Silva Osheen | | | 1936 | SRI | 0.00 | 1 | -0.63 | 25 | -15.75 | |
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) | | | | Colombo International Chess Festival | Colombo | SRI | 2008-02-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1997 | 2030 | 3.00 | 6 | -0.25 | 25 | -6.25 | |
| | Annurudha, G C | | | 2167 | SRI | 0.50 | 1 | 0.18 | 25 | 4.50 | | | Kuruppu, Danuke | | | 2094 | SRI | 0.00 | 1 | -0.41 | 25 | -10.25 | | | Reddy, Priya | | | 1944 | IND | 1.00 | 1 | 0.38 | 25 | 9.50 | | | , P, Jayalaxmi | | | 2037 | IND | 0.50 | 1 | 0.01 | 25 | 0.25 | | | Kottahachchy, K O V | | | 1797 | SRI | 0.50 | 1 | -0.29 | 25 | -7.25 | | | Perera, W.c.c. | | | 1940 | SRI | 0.50 | 1 | -0.12 | 25 | -3.00 | |
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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