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Individual Calculations December 2015 |
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| De Silva, Osheen Total change: 26.80 | |   |
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| Sri Lanka Inter Club Super League 2015 | Colombo | SRI | 2015-11-06 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1925 | 1881 | 3.50 | 7 | 0.43 | 20 | 8.60 | |
|  Galappaththi, Chinthaka Anuruddh | f | | 2100 | SRI | 0.00 | 1 | -0.22 | 20 | -4.40 | |  Kalugampitiya, R S | | | 2116 | SRI | 1.00 | 1 | 0.79 | 20 | 15.80 | | | Lamahewa, C | | | 1860 | SRI | 0.50 | 1 | -0.03 | 20 | -0.60 | | | Athukorala, P M A B | | | 2007 | SRI | 0.50 | 1 | 0.17 | 20 | 3.40 | | | Mendis, W G Chinthaka | | | 1883 | SRI | 0.00 | 1 | -0.50 | 20 | -10.00 | | | Abhimanyu, Iraja | | | 1574 | SRI | 0.50 | 1 | -0.36 | 20 | -7.20 | | | Herath, Nishendra | | | 1937 | SRI | 1.00 | 1 | 0.58 | 20 | 11.60 | |
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 Grand Prix Chess Championship 2015 | Colombo | SRI | 2015-11-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1874 | 1881 | 5.00 | 8 | 0.91 | 20 | 18.20 | |
| | Lamahewa, C | | | 1860 | SRI | 0.00 | 1 | -0.53 | 20 | -10.60 | | | Galappaththi, Chinthaka Anuruddh | f | | 2100 | SRI | 1.00 | 1 | 0.78 | 20 | 15.60 | | | Randil, Lakshitha | | | 1886 | SRI | 0.50 | 1 | 0.01 | 20 | 0.20 | | | Lasitha, Subash | c | | 1788 | SRI | 1.00 | 1 | 0.37 | 20 | 7.40 | | | Jayasundara, P K U M | c | | 1958 | SRI | 0.00 | 1 | -0.39 | 20 | -7.80 | | | Silva, Dineth Sunera | | | 1860 | SRI | 1.00 | 1 | 0.47 | 20 | 9.40 | | | Ranasinghe, S D | | wm | 1774 | SRI | 0.50 | 1 | -0.15 | 20 | -3.00 | | | Senanayaka, P D | | | 1769 | SRI | 1.00 | 1 | 0.35 | 20 | 7.00 | |
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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