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Individual Calculations April 2008 |
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| Walallawita, Lihini Total change: 11.25 | |   |
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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 |
| 1859 | 1780 | 3.50 | 6 | 1.14 | 25 | 28.50 | |
|  Jayathilake, B. | | | 1820 | SRI | 0.50 | 1 | 0.06 | 25 | 1.50 | |  Wijesuriya, G.v., G.v. | | wc | 1908 | SRI | 0.50 | 1 | 0.17 | 25 | 4.25 | | | Ranasinghe, S. | | | 1882 | SRI | 0.50 | 1 | 0.14 | 25 | 3.50 | | | Umesha, B, G.d. | | | 1886 | SRI | 0.50 | 1 | 0.14 | 25 | 3.50 | | | Wettasinghe, S.v. | | | 1811 | SRI | 1.00 | 1 | 0.54 | 25 | 13.50 | | | Maheshika, D, M.p. | | | 1847 | SRI | 0.50 | 1 | 0.09 | 25 | 2.25 | |
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) | | | NOTE: K factor changed | | Sri Lanka Women's National A Chess Championship 2007 | Colombo | SRI | 2007-10-14 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1769 | 1780 | 5.50 | 13 | -1.15 | 15 | -17.25 | |
| | Cooray, Thanya M. | | | 1694 | SRI | 0.50 | 1 | -0.12 | 15 | -1.80 | | | Wijesuriya, G V | | wc | 1897 | SRI | 0.00 | 1 | -0.34 | 15 | -5.10 | | | Lumbini, Ambanwela | | | 1810 | SRI | 1.00 | 1 | 0.54 | 15 | 8.10 | | | Herath, Gayathri | | | 1800 | SRI | 0.00 | 1 | -0.47 | 15 | -7.05 | | | Kodithuwakku, Sithumi | | | 1542 | SRI | 1.00 | 1 | 0.20 | 15 | 3.00 | | | Jayathilake, B | | | 1820 | SRI | 1.00 | 1 | 0.56 | 15 | 8.40 | | | Maheshika, D M P | | | 1847 | SRI | 0.50 | 1 | 0.09 | 15 | 1.35 | | | Thilakawardana, Supeshala | | | 1623 | SRI | 0.00 | 1 | -0.71 | 15 | -10.65 | | | Rajapaksha, A | | | 1827 | SRI | 0.50 | 1 | 0.07 | 15 | 1.05 | | | Perera, Anjana | | | 1788 | SRI | 0.00 | 1 | -0.49 | 15 | -7.35 | | | Umesha, B G D | | | 1886 | SRI | 0.50 | 1 | 0.14 | 15 | 2.10 | | | Premanath, Dinushki | | | 1613 | SRI | 0.50 | 1 | -0.22 | 15 | -3.30 | | | Ranasinghe, S. | | | 1854 | SRI | 0.00 | 1 | -0.40 | 15 | -6.00 | |
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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