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Individual Calculations April 2008 |
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| Kuruppu, Danuke Total change: -25.20 | |   |
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| Sri Lanka National B Chess Championships 2007 | Colombo | SRI | 2007-07-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1948 | 2094 | 4.00 | 7 | -0.83 | 15 | -12.45 | |
|  De, Silva Osheen | | | 1936 | SRI | 0.50 | 1 | -0.21 | 15 | -3.15 | | | Herat, Nishendra | | | 1980 | SRI | 0.50 | 1 | -0.16 | 15 | -2.40 | |  Liyanage, N.p | | | 1966 | SRI | 1.00 | 1 | 0.33 | 15 | 4.95 | | | Kottahachchy, K.o.v | | | 1801 | SRI | 0.50 | 1 | -0.35 | 15 | -5.25 | | | Athavan, R.k | | | 1934 | SRI | 0.50 | 1 | -0.21 | 15 | -3.15 | | | De, Silva N.rashin | | | 2018 | SRI | 0.50 | 1 | -0.10 | 15 | -1.50 | | | Telge, Peiris Gayan | | | 1999 | SRI | 0.50 | 1 | -0.13 | 15 | -1.95 | |
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 A Chess Championships 2007 | Colombo | SRI | 2007-10-14 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2007 | 2094 | 6.50 | 13 | -1.32 | 15 | -19.80 | |
| | Wijesurija, G Laxman | | | 2105 | SRI | 0.50 | 1 | 0.02 | 15 | 0.30 | | | Annurudha, G C | | | 2167 | SRI | 1.00 | 1 | 0.60 | 15 | 9.00 | | | Dissanayake, Rs | | | 2038 | SRI | 0.50 | 1 | -0.08 | 15 | -1.20 | | | Kurukulasuriya, Prasanna | | | 2052 | SRI | 0.00 | 1 | -0.56 | 15 | -8.40 | | | Nishendra, Herath | | | 1980 | SRI | 0.50 | 1 | -0.16 | 15 | -2.40 | | | De, Silwa N Rashin | | | 1969 | SRI | 1.00 | 1 | 0.33 | 15 | 4.95 | | | Amarakoon, Naditha Thilanga | | | 1744 | SRI | 0.50 | 1 | -0.39 | 15 | -5.85 | | | Telge, Peiris Gayan Madushanka | | | 1999 | SRI | 0.00 | 1 | -0.63 | 15 | -9.45 | | | Russell, M K A | | | 2187 | SRI | 0.00 | 1 | -0.37 | 15 | -5.55 | | | Ketalawala, J.k.c. | | | 1744 | SRI | 1.00 | 1 | 0.11 | 15 | 1.65 | | | Kottahachchy, K O V | | | 1799 | SRI | 0.50 | 1 | -0.35 | 15 | -5.25 | | | Edirisinghe, Dulan | | | 2197 | SRI | 0.50 | 1 | 0.14 | 15 | 2.10 | | | Rajapaksha, Rmcm | | | 2108 | SRI | 0.50 | 1 | 0.02 | 15 | 0.30 | |
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) | | | | Colombo International Chess Festival | Colombo | SRI | 2008-02-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1961 | 2094 | 2.50 | 3 | 0.47 | 15 | 7.05 | |
| | Hettiarachchi, A.u. | | | 2030 | SRI | 1.00 | 1 | 0.41 | 15 | 6.15 | | | Hapuarachchi, H L M | | | 1886 | SRI | 0.50 | 1 | -0.27 | 15 | -4.05 | | | Reddy, S. Tejaswini | | | 1967 | IND | 1.00 | 1 | 0.33 | 15 | 4.95 | |
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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