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Individual Calculations March 2011 |
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| Alahakoon, Isuru Total change: -14.40 | |   |
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| 64Squares Chess Challenge - 2011 | Kandy | SRI | 2011-01-15 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1727 | 1964 | 2.50 | 6 | -2.19 | 15 | -32.85 | |
|  Savant, Riya | | wc | 1602 | IND | 0.00 | 1 | -0.90 | 15 | -13.50 | | | Jayaweera, C L | | | 1714 | SRI | 0.00 | 1 | -0.81 | 15 | -12.15 | |  Kahanda, I. D. S. | | | 1581 | SRI | 1.00 | 1 | 0.09 | 15 | 1.35 | | | Bandara, Dhanushka | | | 1807 | SRI | 1.00 | 1 | 0.29 | 15 | 4.35 | | | Pinto, Semuthu | | | 1823 | SRI | 0.50 | 1 | -0.19 | 15 | -2.85 | | | Lamahewa, C | | | 1837 | SRI | 0.00 | 1 | -0.67 | 15 | -10.05 | |
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) | | | | Inter Club Super League Chess Championships 2010 | Colombo | SRI | 2011-02-03 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2076 | 1964 | 3.00 | 6 | 0.89 | 15 | 13.35 | |
| | Wijekoon, Chandana | | | 1988 | SRI | 0.50 | 1 | 0.03 | 15 | 0.45 | | | De Silva, Gihan | | | 1990 | SRI | 0.00 | 1 | -0.46 | 15 | -6.90 | | | Anuruddha, Gc | | | 2166 | SRI | 0.00 | 1 | -0.24 | 15 | -3.60 | | | Dissanayake, Pr | | | 2128 | SRI | 1.00 | 1 | 0.72 | 15 | 10.80 | | | Edirisinghe, Dulan | | | 2099 | SRI | 1.00 | 1 | 0.68 | 15 | 10.20 | | | Chandraratne, Wlc | | | 2085 | SRI | 0.50 | 1 | 0.16 | 15 | 2.40 | |
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) | | | | 4th Colombo International Chess Festival 2011 | Colombo | SRI | 2011-02-16 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1879 | 1964 | 4.00 | 6 | 0.34 | 15 | 5.10 | |
| | Doluweera, Minul Sanjula | | | 1676 | SRI | 1.00 | 1 | 0.16 | 15 | 2.40 | | | Ranasinghe, S D | | | 1827 | SRI | 1.00 | 1 | 0.32 | 15 | 4.80 | | | Lekh, Mithawala | | | 1816 | IND | 0.00 | 1 | -0.70 | 15 | -10.50 | | | Anuruddha, N B M I | | | 1917 | SRI | 1.00 | 1 | 0.43 | 15 | 6.45 | | | Lansakara, L M T I | | | 1855 | SRI | 1.00 | 1 | 0.35 | 15 | 5.25 | | | Rajapakse, R M C M | | | 2184 | SRI | 0.00 | 1 | -0.22 | 15 | -3.30 | |
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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