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Individual Calculations July 2009 |
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| Mallawarachchi, T.s. Total change: -2.70 | |   |
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| Sri Lanka B Chess Championship 2009 | Colombo | SRI | 2009-05-09 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2023 | 2075 | 4.50 | 8 | -0.02 | 15 | -0.30 | |
|  Premachandra, D. | | | 1833 | SRI | 1.00 | 1 | 0.20 | 15 | 3.00 | |  Perera, W.c.c. | | | 1917 | SRI | 0.00 | 1 | -0.71 | 15 | -10.65 | | | Jayawardena, Mihiranga | | | 1920 | SRI | 1.00 | 1 | 0.29 | 15 | 4.35 | | | Anuruddha, G.c. | | | 2187 | SRI | 0.50 | 1 | 0.15 | 15 | 2.25 | | | Peiris, T.g.m. | | | 2129 | SRI | 0.50 | 1 | 0.08 | 15 | 1.20 | | | Senaka, Rajeendra | | | 2126 | SRI | 0.50 | 1 | 0.07 | 15 | 1.05 | | | Edirisinghe, Dulan | | | 2128 | SRI | 0.50 | 1 | 0.07 | 15 | 1.05 | | | Alahakoon, Isuru | | | 1947 | SRI | 0.50 | 1 | -0.17 | 15 | -2.55 | |
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 |
| 2065 | 2075 | 6.00 | 12 | -0.16 | 15 | -2.40 | |
| | Annurudha, G C | | | 2187 | SRI | 0.00 | 1 | -0.35 | 15 | -5.25 | | | Russell, M K A | | | 2241 | SRI | 0.00 | 1 | -0.28 | 15 | -4.20 | | | Peiris, T G M | | | 2129 | SRI | 1.00 | 1 | 0.58 | 15 | 8.70 | | | Hapuarachchi, H L M | | | 1963 | SRI | 0.00 | 1 | -0.65 | 15 | -9.75 | | | Kottahachchy, K O V | | | 2050 | SRI | 0.50 | 1 | -0.03 | 15 | -0.45 | | | Wijekoon, Chandana | | | 1965 | SRI | 1.00 | 1 | 0.35 | 15 | 5.25 | | | Kalugampitiya, R S | | | 2126 | SRI | 0.00 | 1 | -0.43 | 15 | -6.45 | | | Gunasinghe, S R | | | 1940 | SRI | 0.50 | 1 | -0.18 | 15 | -2.70 | | | Jayawardena, M | | | 1920 | SRI | 1.00 | 1 | 0.29 | 15 | 4.35 | | | Kurukulasuriya, Prasanna | | | 2085 | SRI | 1.00 | 1 | 0.51 | 15 | 7.65 | | | Wijesuriya, G Luxman | | | 2049 | SRI | 1.00 | 1 | 0.46 | 15 | 6.90 | | | Edirisinghe, Dulan | | | 2128 | SRI | 0.00 | 1 | -0.43 | 15 | -6.45 | |
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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