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Individual Calculations April 2009 |
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| Gunasinghe, Sr Total change: -18.50 | |   |
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| Sri Lanka Inter Club Super League 08 | Colombo | SRI | 2009-02-06 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1978 | 1958 | 0.50 | 3 | -0.94 | 25 | -23.50 | |
|  Samarakone, Ul | | | 1876 | SRI | 0.50 | 1 | -0.11 | 25 | -2.75 | |  Perera, Dulan | | | 1885 | SRI | 0.00 | 1 | -0.60 | 25 | -15.00 | | | Anuruddha, G.c. | | | 2173 | SRI | 0.00 | 1 | -0.23 | 25 | -5.75 | |
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 Open International Rating Chess Tournament 2009 | Kandy | SRI | 2009-03-06 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1987 | 1958 | 2.00 | 4 | 0.20 | 25 | 5.00 | |
| | Kurukulasuriya, Prasanna | | | 2092 | SRI | 0.50 | 1 | 0.18 | 25 | 4.50 | | | Anuruddha, G.c. | | | 2173 | SRI | 0.00 | 1 | -0.23 | 25 | -5.75 | | | Madugalle, Y.d.b. | | | 2045 | SRI | 0.50 | 1 | 0.12 | 25 | 3.00 | | | Rajapakshe, R.m.t.c. | | | 1639 | SRI | 1.00 | 1 | 0.13 | 25 | 3.25 | |
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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