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Individual Calculations July 2010 |
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| Dissanayake, R S Total change: -5.10 | |   |
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| Sri Lanka National B Chess Championship 2010 | Colombo | SRI | 2010-04-24 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1929 | 2030 | 6.50 | 10 | 0.14 | 15 | 2.10 | |
|  Liyanapathirana, Pasan Vindula | | | 1841 | SRI | 1.00 | 1 | 0.25 | 15 | 3.75 | |  Jayawardena, M | | | 1945 | SRI | 0.50 | 1 | -0.12 | 15 | -1.80 | | | Premachandra, G T D | | | 1907 | SRI | 1.00 | 1 | 0.33 | 15 | 4.95 | | | De Silva, Osheen | | | 1930 | SRI | 0.50 | 1 | -0.14 | 15 | -2.10 | | | Jayasundara, P K U M | | | 1943 | SRI | 0.50 | 1 | -0.12 | 15 | -1.80 | | | Weerawardane, R | | | 2165 | SRI | 0.00 | 1 | -0.32 | 15 | -4.80 | | | Amarasena, Kaveesha | | | 1921 | SRI | 0.50 | 1 | -0.15 | 15 | -2.25 | | | Hirimburegama, Yasith | | | 1884 | SRI | 0.50 | 1 | -0.20 | 15 | -3.00 | | | Aktar, M R | | | 1801 | SRI | 1.00 | 1 | 0.21 | 15 | 3.15 | | | Alahakoon, Isuru | | | 1954 | SRI | 1.00 | 1 | 0.40 | 15 | 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) | | | | Sri Lanka National Chess Championship 2010 | Colombo | SRI | 2010-05-06 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2033 | 2030 | 6.00 | 13 | -0.48 | 15 | -7.20 | |
| | De Silva, Osheen | | | 1948 | SRI | 0.50 | 1 | -0.11 | 15 | -1.65 | | | Pieris, T D R | | | 2062 | SRI | 0.50 | 1 | 0.04 | 15 | 0.60 | | | Koggala, W S V K | | | 1940 | SRI | 0.00 | 1 | -0.62 | 15 | -9.30 | | | Jayasundara, P K U M | | | 1954 | SRI | 0.00 | 1 | -0.60 | 15 | -9.00 | | | Perera, W C C | | | 1963 | SRI | 1.00 | 1 | 0.41 | 15 | 6.15 | | | Bandara, P M R L | | | 1995 | SRI | 1.00 | 1 | 0.45 | 15 | 6.75 | | | Anuruddha, G C | | | 2120 | SRI | 0.00 | 1 | -0.38 | 15 | -5.70 | | | Athukorala, P M A B | | | 2127 | SRI | 1.00 | 1 | 0.63 | 15 | 9.45 | | | Russell, M K A | | | 2269 | SRI | 0.00 | 1 | -0.20 | 15 | -3.00 | | | Wijekoon, Chandana | | | 1958 | SRI | 0.50 | 1 | -0.10 | 15 | -1.50 | | | Amarasena, Kaveesha | | | 1926 | SRI | 1.00 | 1 | 0.36 | 15 | 5.40 | | | Peiris, T S S | | | 2003 | SRI | 0.50 | 1 | -0.04 | 15 | -0.60 | | | Weerawardane, R | | | 2165 | SRI | 0.00 | 1 | -0.32 | 15 | -4.80 | |
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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