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Individual Calculations September 2011 |
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| Obeysekara, T A Sajith Chathura Total change: -18.30 | |   |
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| Sri Lanka Major Division Colombo Chess Championship, 2011 | Colombo | SRI | 2011-07-08 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1969 | 1643 | 0.00 | 2 | -0.26 | 30 | -7.80 | |
|  Jayasundara, P K U M | | | 1971 | SRI | 0.00 | 1 | -0.13 | 30 | -3.90 | | | Karunarathne, D C J | | | 1966 | SRI | 0.00 | 1 | -0.13 | 30 | -3.90 | |
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) | | | | Mora Kings International Rating Chess Championship 2011 | Moratuwa | SRI | 2011-08-04 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1914 | 1643 | 0.00 | 2 | -0.35 | 30 | -10.50 | |
| | De Silva, Osheen | | | 1944 | SRI | 0.00 | 1 | -0.15 | 30 | -4.50 | | | Lamawansa, Yasas | | | 1884 | SRI | 0.00 | 1 | -0.20 | 30 | -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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