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Individual Calculations July 2009 |
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| Wijesuriya, G.l. Total change: 48.75 | |   |
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| Sri Lanka B Chess Championship 2009 | Colombo | SRI | 2009-05-09 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2000 | 2049 | 7.00 | 9 | 1.95 | 15 | 29.25 | |
|  Munasinghe, Shanaka | | | 1791 | SRI | 1.00 | 1 | 0.18 | 15 | 2.70 | |  Amarasena, Kaveesha | | | 1908 | SRI | 1.00 | 1 | 0.31 | 15 | 4.65 | | | Premachandra, D. | | | 1833 | SRI | 1.00 | 1 | 0.22 | 15 | 3.30 | | | Fonseka, C.k.d. | | | 1999 | SRI | 1.00 | 1 | 0.43 | 15 | 6.45 | | | Kurukulasuriya, Prasanna | | | 2085 | SRI | 0.50 | 1 | 0.05 | 15 | 0.75 | | | Senaka, Rajeendra | | | 2126 | SRI | 0.50 | 1 | 0.11 | 15 | 1.65 | | | Gunasinghe, S.r. | | | 1940 | SRI | 1.00 | 1 | 0.35 | 15 | 5.25 | | | Anuruddha, G.c. | | | 2187 | SRI | 0.50 | 1 | 0.19 | 15 | 2.85 | | | Peiris, T.g.m. | | | 2129 | SRI | 0.50 | 1 | 0.11 | 15 | 1.65 | |
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 2009 | Colombo | SRI | 2009-06-05 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2067 | 2049 | 7.00 | 12 | 1.30 | 15 | 19.50 | |
| | Peiris, T G M | | | 2129 | SRI | 1.00 | 1 | 0.61 | 15 | 9.15 | | | Hapuarachchi, H L M | | | 1963 | SRI | 0.50 | 1 | -0.12 | 15 | -1.80 | | | Kottahachchy, K O V | | | 2050 | SRI | 0.50 | 1 | 0.00 | 15 | 0.00 | | | Wijekoon, Chandana | | | 1965 | SRI | 1.00 | 1 | 0.38 | 15 | 5.70 | | | Kalugampitiya, R S | | | 2126 | SRI | 1.00 | 1 | 0.61 | 15 | 9.15 | | | Gunasinghe, S R | | | 1940 | SRI | 1.00 | 1 | 0.35 | 15 | 5.25 | | | Jayawardena, M | | | 1920 | SRI | 0.00 | 1 | -0.67 | 15 | -10.05 | | | Kurukulasuriya, Prasanna | | | 2085 | SRI | 1.00 | 1 | 0.55 | 15 | 8.25 | | | Edirisinghe, Dulan | | | 2128 | SRI | 0.50 | 1 | 0.11 | 15 | 1.65 | | | Mallawarachchi, T S | | | 2075 | SRI | 0.00 | 1 | -0.46 | 15 | -6.90 | | | Annurudha, G C | | | 2187 | SRI | 0.00 | 1 | -0.31 | 15 | -4.65 | | | Russell, M K A | | | 2241 | 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) | | |
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