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Individual Calculations July 2008 |
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| Mallawarachchi, T.s. Total change: -129.85 | |   |
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| Sri Lanka Open Chess Championship | Polgolla, Kandy | SRI | 2008-03-19 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2038 | 2229 | 4.50 | 8 | -1.37 | 25 | -34.25 | |
|  Konara, Harshani | | | 1918 | SRI | 1.00 | 1 | 0.14 | 25 | 3.50 | |  De, Silva Osheen | | | 1936 | SRI | 0.50 | 1 | -0.35 | 25 | -8.75 | | | Peiris, T.g.m. | | | 1999 | SRI | 0.00 | 1 | -0.79 | 25 | -19.75 | | | De Moraes, Shamine | | | 1994 | SRI | 1.00 | 1 | 0.21 | 25 | 5.25 | | | Kalugampitiya, R S | | | 2114 | SRI | 1.00 | 1 | 0.34 | 25 | 8.50 | | | Dehigama, D R N K B | | | 2033 | SRI | 0.00 | 1 | -0.75 | 25 | -18.75 | | | Ravi, Ts | m | | 2339 | IND | 0.00 | 1 | -0.35 | 25 | -8.75 | | | De, Silwa N Rashin | | | 1969 | SRI | 1.00 | 1 | 0.18 | 25 | 4.50 | |
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 B Chess Championship 2008 | Colombo | SRI | 2008-04-25 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2002 | 2221 | 4.50 | 8 | -1.67 | 25 | -41.75 | |
| | Kottahachchi, K.o.v. | | | 1930 | SRI | 0.00 | 1 | -0.85 | 25 | -21.25 | | | Kavikeshawa, Kasun | | | 1901 | SRI | 0.50 | 1 | -0.37 | 25 | -9.25 | | | Gunasinghe, Sameera | | | 1966 | SRI | 0.50 | 1 | -0.31 | 25 | -7.75 | | | Perera, Derrick | | | 2012 | SRI | 0.50 | 1 | -0.27 | 25 | -6.75 | | | Pieris, Tdr | | | 2141 | SRI | 0.50 | 1 | -0.11 | 25 | -2.75 | | | Kuruppu, Danuke | | | 2069 | SRI | 1.00 | 1 | 0.30 | 25 | 7.50 | | | De Silva, Osheen | | | 1960 | SRI | 1.00 | 1 | 0.18 | 25 | 4.50 | | | Kurukulasuriya, Prasanna | | | 2036 | SRI | 0.50 | 1 | -0.24 | 25 | -6.00 | |
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) | | | NOTE: K factor changed | | Sri Lanka National A Chess Championship 2008 | Kandy | SRI | 2008-05-24 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2064 | 2221 | 5.50 | 13 | -3.59 | 15 | -53.85 | |
| | Russell, M.k.a. | | | 2205 | SRI | 1.00 | 1 | 0.48 | 15 | 7.20 | | | Peiris, T.g.m. | | | 2027 | SRI | 0.00 | 1 | -0.75 | 15 | -11.25 | | | Kurukulasuriya, Prasanna | | | 2036 | SRI | 0.00 | 1 | -0.74 | 15 | -11.10 | | | Annurudha, G.c. | | | 2222 | SRI | 0.00 | 1 | -0.50 | 15 | -7.50 | | | Wijesuriya, G. Luxman | | | 2084 | SRI | 0.50 | 1 | -0.18 | 15 | -2.70 | | | De Silva, Osheen | | | 1960 | SRI | 0.50 | 1 | -0.32 | 15 | -4.80 | | | Pieris, T.d.r. | | | 2141 | SRI | 1.00 | 1 | 0.39 | 15 | 5.85 | | | Bandara, P.m.r.l. | | | 1895 | SRI | 0.00 | 1 | -0.87 | 15 | -13.05 | | | Weerawardane, R. | | | 2121 | SRI | 1.00 | 1 | 0.36 | 15 | 5.40 | | | Madugalle, Y.d.b. | | | 1991 | SRI | 0.00 | 1 | -0.79 | 15 | -11.85 | | | Rajapakse, R.m.c.m. | | | 2111 | SRI | 0.00 | 1 | -0.65 | 15 | -9.75 | | | Fonseka, C.k.d. | | | 2050 | SRI | 1.00 | 1 | 0.27 | 15 | 4.05 | | | Kavinda, Akhila | | | 1988 | SRI | 0.50 | 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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