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Individual Calculations September 2011 |
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| Lamawansa, Yasas Total change: 18.75 | |   |
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| Sri Lanka Major Division Kandy Chess championship 2011 | Kandy | SRI | 2011-07-08 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1859 | 1884 | 3.50 | 5 | 0.84 | 15 | 12.60 | |
|  Chandrasiri, P K | | | 1712 | SRI | 1.00 | 1 | 0.27 | 15 | 4.05 | | | Ranasinghe, C N | | | 1761 | SRI | 1.00 | 1 | 0.33 | 15 | 4.95 | |  Alahakoon, Isuru | | | 1924 | SRI | 0.50 | 1 | 0.06 | 15 | 0.90 | | | Hettiarachchi, A U | | | 1951 | SRI | 0.50 | 1 | 0.09 | 15 | 1.35 | | | Mallawarachchi, T S | | | 1948 | SRI | 0.50 | 1 | 0.09 | 15 | 1.35 | |
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 |
| 1736 | 1884 | 4.50 | 6 | 0.41 | 15 | 6.15 | |
| | Paul, J S | | | 1628 | SRI | 1.00 | 1 | 0.19 | 15 | 2.85 | | | Anuruddha, G C | | | 2139 | SRI | 0.00 | 1 | -0.19 | 15 | -2.85 | | | Obesekara, T A S Chathuranga | | | 1643 | SRI | 1.00 | 1 | 0.20 | 15 | 3.00 | | | Jayanka, L P P R | | | 1736 | SRI | 1.00 | 1 | 0.30 | 15 | 4.50 | | | Madumadha, M Chaithika Samith | | | 1723 | SRI | 0.50 | 1 | -0.21 | 15 | -3.15 | | | Gunaratne, Mojitha Sathsara | | | 1547 | SRI | 1.00 | 1 | 0.12 | 15 | 1.80 | |
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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