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Individual Calculations July 2009 |
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| Senaka, Rajeendra Total change: 5.10 | |   |
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| Sri Lanka B Chess Championship 2009 | Colombo | SRI | 2009-05-09 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1999 | 2126 | 6.50 | 10 | -0.13 | 15 | -1.95 | |
|  Ranasinghe, C.n. | | | 1860 | SRI | 1.00 | 1 | 0.18 | 15 | 2.70 | |  Jayawardena, Mihiranga | | | 1920 | SRI | 1.00 | 1 | 0.24 | 15 | 3.60 | | | Perera, W.c.c. | | | 1917 | SRI | 0.50 | 1 | -0.27 | 15 | -4.05 | | | Peiris, T.s.s. | | | 1938 | SRI | 1.00 | 1 | 0.26 | 15 | 3.90 | | | Anuruddha, G.c. | | | 2187 | SRI | 0.00 | 1 | -0.42 | 15 | -6.30 | | | Wijekoon, Chandana | | | 1965 | SRI | 1.00 | 1 | 0.29 | 15 | 4.35 | | | Wijesuriya, G.l. | | | 2049 | SRI | 0.50 | 1 | -0.11 | 15 | -1.65 | | | Mallawarachchi, T.s. | | | 2075 | SRI | 0.50 | 1 | -0.07 | 15 | -1.05 | | | De Moraes, Shamin | | | 1951 | SRI | 0.50 | 1 | -0.23 | 15 | -3.45 | | | Edirisinghe, Dulan | | | 2128 | SRI | 0.50 | 1 | 0.00 | 15 | 0.00 | |
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 2009 | Colombo | SRI | 2009-06-05 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2061 | 2126 | 7.50 | 12 | 0.47 | 15 | 7.05 | |
| | Gunasinghe, S R | | | 1940 | SRI | 1.00 | 1 | 0.26 | 15 | 3.90 | | | Jayawardena, M | | | 1920 | SRI | 1.00 | 1 | 0.24 | 15 | 3.60 | | | Kurukulasuriya, Prasanna | | | 2085 | SRI | 0.50 | 1 | -0.06 | 15 | -0.90 | | | Wijesuriya, G Luxman | | | 2049 | SRI | 0.00 | 1 | -0.61 | 15 | -9.15 | | | Edirisinghe, Dulan | | | 2128 | SRI | 0.50 | 1 | 0.00 | 15 | 0.00 | | | Mallawarachchi, T S | | | 2075 | SRI | 1.00 | 1 | 0.43 | 15 | 6.45 | | | Annurudha, G C | | | 2187 | SRI | 1.00 | 1 | 0.58 | 15 | 8.70 | | | Russell, M K A | | | 2241 | SRI | 0.50 | 1 | 0.16 | 15 | 2.40 | | | Peiris, T G M | | | 2129 | SRI | 0.00 | 1 | -0.50 | 15 | -7.50 | | | Hapuarachchi, H L M | | | 1963 | SRI | 0.00 | 1 | -0.72 | 15 | -10.80 | | | Kottahachchy, K O V | | | 2050 | SRI | 1.00 | 1 | 0.40 | 15 | 6.00 | | | Wijekoon, Chandana | | | 1965 | SRI | 1.00 | 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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