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Individual Calculations April 2008 |
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| Dulan, Edirisinghe Total change: -30.60 | |   |
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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 |
| 2041 | 2197 | 2.50 | 6 | -1.70 | 15 | -25.50 | |
|  De, Silva Osheen | | | 1936 | SRI | 0.00 | 1 | -0.82 | 15 | -12.30 | | | Herat, Nishendra | | | 1980 | SRI | 1.00 | 1 | 0.22 | 15 | 3.30 | | | Anurudda, G.c. | | | 2167 | SRI | 0.00 | 1 | -0.54 | 15 | -8.10 | |  De, Silva N.rashin | | | 2018 | SRI | 0.50 | 1 | -0.23 | 15 | -3.45 | | | De, Moraes Shamine | | | 1994 | SRI | 0.50 | 1 | -0.26 | 15 | -3.90 | | | Rajapaksha, Rmcm | | | 2148 | SRI | 0.50 | 1 | -0.07 | 15 | -1.05 | |
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 |
| 2018 | 2197 | 9.00 | 13 | -0.34 | 15 | -5.10 | |
| | Telge, Peiris Gayan Madushanka | | | 1999 | SRI | 0.00 | 1 | -0.76 | 15 | -11.40 | | | Russell, M K A | | | 2187 | SRI | 1.00 | 1 | 0.49 | 15 | 7.35 | | | Ketalawala, J.k.c. | | | 1847 | SRI | 1.00 | 1 | 0.11 | 15 | 1.65 | | | Kottahachchy, K O V | | | 1847 | SRI | 1.00 | 1 | 0.11 | 15 | 1.65 | | | De, Silwa N Rashin | | | 1969 | SRI | 1.00 | 1 | 0.21 | 15 | 3.15 | | | Rajapaksha, Rmcm | | | 2108 | SRI | 0.00 | 1 | -0.62 | 15 | -9.30 | | | Wijesurija, G Laxman | | | 2105 | SRI | 1.00 | 1 | 0.37 | 15 | 5.55 | | | Annurudha, G C | | | 2167 | SRI | 0.00 | 1 | -0.54 | 15 | -8.10 | | | Dissanayake, Rs | | | 2038 | SRI | 1.00 | 1 | 0.29 | 15 | 4.35 | | | Kurukulasuriya, Prasanna | | | 2052 | SRI | 0.50 | 1 | -0.19 | 15 | -2.85 | | | Nishendra, Herath | | | 1980 | SRI | 1.00 | 1 | 0.22 | 15 | 3.30 | | | Kuruppu, Danuke | | | 2094 | SRI | 0.50 | 1 | -0.14 | 15 | -2.10 | | | Amarakoon, Naditha Thilanga | | | 1847 | SRI | 1.00 | 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) | | |
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