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Individual Calculations April 2009 |
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| Kumarawadu, C.s. Total change: 0.00 | |   |
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| The Inaugural Royal Challenge International Chess Championship 2009 | Colombo | SRI | 2009-01-10 |
| Rc | Ro | w | n | change | Rp | K | K*chg | Game |
| 1913 | 0 | 1.00 | 4 | 0.00 | 1720 | | 0.00 | |
|  Kavikeshawa, P.b. | | | 1895 | SRI | 1.00 | 1 | 0.00 | | 0.00 | |  Alahakoon, Isuru | | | 1977 | SRI | 0.00 | 1 | 0.00 | | 0.00 | | | Seneviratne, Malinda | | | 1853 | SRI | 0.00 | 1 | 0.00 | | 0.00 | | | Amarasinghe, A.a.c.b.j.b. | | | 1925 | SRI | 0.00 | 1 | 0.00 | | 0.00 | |
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) | | | | Sri Lanka Inter Club Super League 08 | Colombo | SRI | 2009-02-06 |
| Rc | Ro | w | n | change | Rp | K | K*chg | Game |
| 2054 | 0 | 0.50 | 5 | 0.00 | 1688 | | 0.00 | |
| | Wijesuriya, Gl | | | 2065 | SRI | 0.00 | 1 | 0.00 | | 0.00 | | | Perera, Dulan | | | 1885 | SRI | 0.00 | 1 | 0.00 | | 0.00 | | | Athukorala, A | | | 2141 | SRI | 0.00 | 1 | 0.00 | | 0.00 | | | Anuruddha, G.c. | | | 2173 | SRI | 0.50 | 1 | 0.00 | | 0.00 | | | Herath, Np | | | 2005 | SRI | 0.00 | 1 | 0.00 | | 0.00 | |
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) | | | | Sri Lanka Open International Rating Chess Tournament 2009 | Kandy | SRI | 2009-03-06 |
| Rc | Ro | w | n | change | Rp | K | K*chg | Game |
| 1822 | 0 | 1.00 | 3 | 0.00 | 1697 | | 0.00 | |
| | Wettasinghe, Vasantha | | | 1929 | SRI | 0.00 | 1 | 0.00 | | 0.00 | | | Rajapaksha, Ashanthi | | | 1816 | SRI | 1.00 | 1 | 0.00 | | 0.00 | | | Selvaratnam, Navodya | | | 1722 | SRI | 0.00 | 1 | 0.00 | | 0.00 | |
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) | | |
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