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Individual Calculations April 2008 |
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| Jayathilake, B Total change: -61.00 | |   |
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| Sri Lanka Women's National B Chess Championships 2007 | Colombo | SRI | 2007-09-22 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1808 | 1820 | 2.50 | 6 | -0.58 | 25 | -14.50 | |
|  Thilakawardana, S. | | | 1626 | SRI | 1.00 | 1 | 0.25 | 25 | 6.25 | |  Walallawita, Lihini | | | 1780 | SRI | 0.50 | 1 | -0.06 | 25 | -1.50 | | | Ranasinghe, S. | | | 1882 | SRI | 0.00 | 1 | -0.41 | 25 | -10.25 | | | Umesha, B, G.d. | | | 1886 | SRI | 0.50 | 1 | 0.09 | 25 | 2.25 | | | Rajapaksha, A. | | | 1827 | SRI | 0.00 | 1 | -0.49 | 25 | -12.25 | | | Maheshika, D, M.p. | | | 1847 | SRI | 0.50 | 1 | 0.04 | 25 | 1.00 | |
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) | | | | Sri Lanka Women's National A Chess Championship 2007 | Colombo | SRI | 2007-10-14 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1766 | 1820 | 5.50 | 13 | -1.86 | 25 | -46.50 | |
| | Kodithuwakku, Sithumi | | | 1542 | SRI | 0.50 | 1 | -0.33 | 25 | -8.25 | | | Perera, Anjana | | | 1788 | SRI | 0.50 | 1 | -0.04 | 25 | -1.00 | | | Maheshika, D M P | | | 1847 | SRI | 0.00 | 1 | -0.46 | 25 | -11.50 | | | Thilakawardana, Supeshala | | | 1623 | SRI | 0.50 | 1 | -0.25 | 25 | -6.25 | | | Rajapaksha, A | | | 1827 | SRI | 0.00 | 1 | -0.49 | 25 | -12.25 | | | Walallawita, Lihini | | | 1780 | SRI | 0.00 | 1 | -0.56 | 25 | -14.00 | | | Umesha, B G D | | | 1886 | SRI | 1.00 | 1 | 0.59 | 25 | 14.75 | | | Premanath, Dinushki | | | 1613 | SRI | 0.50 | 1 | -0.27 | 25 | -6.75 | | | Ranasinghe, S. | | | 1854 | SRI | 0.00 | 1 | -0.45 | 25 | -11.25 | | | Cooray, Thanya M. | | | 1694 | SRI | 1.00 | 1 | 0.33 | 25 | 8.25 | | | Wijesuriya, G V | | wc | 1897 | SRI | 0.00 | 1 | -0.39 | 25 | -9.75 | | | Lumbini, Ambanwela | | | 1810 | SRI | 1.00 | 1 | 0.49 | 25 | 12.25 | | | Herath, Gayathri | | | 1800 | SRI | 0.50 | 1 | -0.03 | 25 | -0.75 | |
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) | | |
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