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Individual Calculations July 2010 |
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| Wijekoon, Chandana Total change: 34.20 | |   |
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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 |
| 1954 | 1961 | 6.50 | 10 | 1.45 | 15 | 21.75 | |
|  Samaranayake, K P R N | | | 1669 | SRI | 1.00 | 1 | 0.15 | 15 | 2.25 | |  Anuruddha, G C | | | 2148 | SRI | 0.50 | 1 | 0.24 | 15 | 3.60 | | | Wijesuriya, G Luxman | | | 2088 | SRI | 1.00 | 1 | 0.67 | 15 | 10.05 | | | Athukorala, P M A B | | | 2127 | SRI | 0.00 | 1 | -0.28 | 15 | -4.20 | | | Kurukulasuriya, Prasanna | | | 2057 | SRI | 0.50 | 1 | 0.13 | 15 | 1.95 | | | Rathnasekara, Abimanyu | | | 1836 | SRI | 1.00 | 1 | 0.33 | 15 | 4.95 | | | Kumara, C M S Praneeth | | | 1739 | SRI | 1.00 | 1 | 0.22 | 15 | 3.30 | | | De Silva, Osheen | | | 1930 | SRI | 0.50 | 1 | -0.04 | 15 | -0.60 | | | Jayasundara, P K U M | | | 1943 | SRI | 0.50 | 1 | -0.03 | 15 | -0.45 | | | Peiris, T S S | | | 2003 | SRI | 0.50 | 1 | 0.06 | 15 | 0.90 | |
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) | | | | Sri Lanka National Chess Championship 2010 | Colombo | SRI | 2010-05-06 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2039 | 1958 | 6.00 | 13 | 0.83 | 15 | 12.45 | |
| | Athukorala, P M A B | | | 2127 | SRI | 0.50 | 1 | 0.22 | 15 | 3.30 | | | Russell, M K A | | | 2269 | SRI | 1.00 | 1 | 0.86 | 15 | 12.90 | | | Jayasundara, P K U M | | | 1954 | SRI | 1.00 | 1 | 0.49 | 15 | 7.35 | | | Amarasena, Kaveesha | | | 1926 | SRI | 1.00 | 1 | 0.46 | 15 | 6.90 | | | Peiris, T S S | | | 2003 | SRI | 0.50 | 1 | 0.06 | 15 | 0.90 | | | Weerawardane, R | | | 2165 | SRI | 0.00 | 1 | -0.23 | 15 | -3.45 | | | De Silva, Osheen | | | 1948 | SRI | 0.00 | 1 | -0.51 | 15 | -7.65 | | | Pieris, T D R | | | 2062 | SRI | 1.00 | 1 | 0.64 | 15 | 9.60 | | | Koggala, W S V K | | | 1940 | SRI | 0.00 | 1 | -0.53 | 15 | -7.95 | | | Dissanayake, R S | | | 2030 | SRI | 0.50 | 1 | 0.10 | 15 | 1.50 | | | Perera, W C C | | | 1963 | SRI | 0.50 | 1 | 0.01 | 15 | 0.15 | | | Bandara, P M R L | | | 1995 | SRI | 0.00 | 1 | -0.45 | 15 | -6.75 | | | Anuruddha, G C | | | 2120 | SRI | 0.00 | 1 | -0.29 | 15 | -4.35 | |
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) | | |
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