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Individual Calculations March 2010 |
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| Alahakoon, Isuru Total change: 15.90 | |   |
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| Ethugalpura Chess Challenge | Kurunegala, Sri Lanka | SRI | 2009-12-11 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1995 | 1938 | 3.50 | 4 | 1.77 | 15 | 26.55 | |
|  Ranasinghe, C N | | | 1826 | SRI | 1.00 | 1 | 0.35 | 15 | 5.25 | |  Sushrutha, Reddy | | | 1861 | IND | 1.00 | 1 | 0.39 | 15 | 5.85 | | | Anuruddha, G C | | | 2158 | SRI | 1.00 | 1 | 0.78 | 15 | 11.70 | | | Kalugampitiya, R S | | | 2135 | SRI | 0.50 | 1 | 0.25 | 15 | 3.75 | |
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) | | | | 3rd Colombo International Chess Festival 2010 | Colombo | SRI | 2010-01-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1832 | 1938 | 4.50 | 6 | 0.75 | 15 | 11.25 | |
| | Jayasoma, H B G T | | | 1795 | SRI | 1.00 | 1 | 0.31 | 15 | 4.65 | | | Kalugampitiya, R S | | | 2135 | SRI | 0.00 | 1 | -0.25 | 15 | -3.75 | | | Harishman, S | | | 1733 | SRI | 0.50 | 1 | -0.26 | 15 | -3.90 | | | Kodithuwakku, Arachchige Padmas | | | 1565 | SRI | 1.00 | 1 | 0.10 | 15 | 1.50 | | | Rabel, Chinthaka | | | 1788 | SRI | 1.00 | 1 | 0.30 | 15 | 4.50 | | | De Silva, Osheen | | | 1976 | SRI | 1.00 | 1 | 0.55 | 15 | 8.25 | |
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 Inter Clubs Super League Chess Championship | Colombo | SRI | 2010-02-04 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1865 | 1938 | 1.50 | 5 | -1.46 | 15 | -21.90 | |
| | Rajapakse, R M T C | | | 1673 | SRI | 0.50 | 1 | -0.32 | 15 | -4.80 | | | Athavan, R K | | | 1938 | SRI | 0.00 | 1 | -0.50 | 15 | -7.50 | | | Saranga, N C O | | | 1969 | SRI | 0.00 | 1 | -0.46 | 15 | -6.90 | | | Liyanapathirana, Pasan Vindula | | | 1835 | SRI | 0.50 | 1 | -0.14 | 15 | -2.10 | | | Amarasena, Kaveesha | | | 1910 | SRI | 0.50 | 1 | -0.04 | 15 | -0.60 | |
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) | | |
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