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Individual Calculations April 2014 |
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| Kottahachchy, K O V Total change: -16.80 | |   |
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| Sri Lanka National B Chess Championship 2014 | Colombo | SRI | 2014-02-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1900 | 2075 | 7.00 | 10 | -0.19 | 15 | -2.85 | |
|  Abhimanyu, Iraja | | | 1714 | SRI | 1.00 | 1 | 0.10 | 15 | 1.50 | |  Jayasuriya, Dinushka | | | 1818 | SRI | 1.00 | 1 | 0.18 | 15 | 2.70 | | | Amarasinghe, A A C B | | | 1876 | SRI | 0.50 | 1 | -0.26 | 15 | -3.90 | | | Priyankara, Chamil | | | 1941 | SRI | 1.00 | 1 | 0.32 | 15 | 4.80 | | | Kulasekara, Kashapa D M T | | | 1908 | SRI | 0.50 | 1 | -0.22 | 15 | -3.30 | | | Wijekoon, Chandana | | | 2020 | SRI | 0.50 | 1 | -0.08 | 15 | -1.20 | | | Gunaratne, Mojitha Sathsara | | | 1810 | SRI | 1.00 | 1 | 0.18 | 15 | 2.70 | | | Ranasinghe, S D | | wm | 1845 | SRI | 0.50 | 1 | -0.29 | 15 | -4.35 | | | Bhagya, Viman | | | 2049 | SRI | 0.50 | 1 | -0.04 | 15 | -0.60 | | | Koggala, W S V K | | | 2021 | SRI | 0.50 | 1 | -0.08 | 15 | -1.20 | |
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 National Chess Championship 2014 | Colombo | SRI | 2014-03-15 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2019 | 2075 | 6.50 | 13 | -0.93 | 15 | -13.95 | |
| | Koggala, W S V K | | | 2021 | SRI | 0.00 | 1 | -0.58 | 15 | -8.70 | | | Ranasinghe, S D | | wm | 1847 | SRI | 1.00 | 1 | 0.21 | 15 | 3.15 | | | Alahakoon, Isuru | | | 2083 | SRI | 0.00 | 1 | -0.49 | 15 | -7.35 | | | Kavinda, Akila | | | 1921 | SRI | 0.50 | 1 | -0.21 | 15 | -3.15 | | | Bhagya, Viman | | | 2049 | SRI | 1.00 | 1 | 0.46 | 15 | 6.90 | | | Weerawardane, Romesh | m | | 2125 | SRI | 0.50 | 1 | 0.07 | 15 | 1.05 | | | Anuruddha, G C | c | | 2158 | SRI | 1.00 | 1 | 0.61 | 15 | 9.15 | | | Kurukulasuriya, Prasanna | f | | 2077 | SRI | 0.50 | 1 | 0.00 | 15 | 0.00 | | | Kulasekara, Kashapa D M T | | | 1929 | SRI | 0.50 | 1 | -0.20 | 15 | -3.00 | | | Gunaratne, Mojitha Sathsara | | | 1800 | SRI | 0.50 | 1 | -0.33 | 15 | -4.95 | | | Perera, W C C | c | | 2130 | SRI | 0.50 | 1 | 0.08 | 15 | 1.20 | | | Kandearachchi, Niranga | | | 1962 | SRI | 0.00 | 1 | -0.65 | 15 | -9.75 | | | Kalugampitiya, R S | | | 2149 | SRI | 0.50 | 1 | 0.10 | 15 | 1.50 | |
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) | | |
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