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Individual Calculations July 2009 |
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| Seneviratne, Shehan Total change: 42.60 | |   |
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| Sri Lanka Junior National Chess Championship 2009 | Colombo | SRI | 2009-04-17 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1899 | 1580 | 1.00 | 2 | 0.73 | 15 | 10.95 | |
|  Madugalle, Y.d.b. | | | 1930 | SRI | 0.00 | 1 | -0.11 | 15 | -1.65 | | | Saranapala, Nimantha | | | 1867 | SRI | 1.00 | 1 | 0.84 | 15 | 12.60 | |
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 Major Chess Championship 2009 | Colombo | SRI | 2009-04-24 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1921 | 1580 | 1.50 | 4 | 1.03 | 15 | 15.45 | |
| | Munasinghe, Lahiru | | | 1920 | SRI | 0.50 | 1 | 0.38 | 15 | 5.70 | |  Athavan, R.k. | | | 1930 | SRI | 0.00 | 1 | -0.11 | 15 | -1.65 | | | Fernando, J.m.m.p. | | | 1930 | SRI | 0.50 | 1 | 0.39 | 15 | 5.85 | | | Jayasundara, P.k.u.m. | | | 1905 | SRI | 0.50 | 1 | 0.37 | 15 | 5.55 | |
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 B Chess Championship 2009 | Colombo | SRI | 2009-05-09 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1903 | 1580 | 2.00 | 7 | 1.08 | 15 | 16.20 | |
| | Hapuarachchi, H.l.m. | | | 1930 | SRI | 0.00 | 1 | -0.11 | 15 | -1.65 | | | Gunasinghe, W.a.t.s. | | | 1891 | SRI | 0.00 | 1 | -0.14 | 15 | -2.10 | | | Miraj, D.a. | | | 1930 | SRI | 0.50 | 1 | 0.39 | 15 | 5.85 | | | Liyanage, N.p. | | | 1930 | SRI | 0.50 | 1 | 0.39 | 15 | 5.85 | | | Fernando, J.m.m.p. | | | 1930 | SRI | 0.00 | 1 | -0.11 | 15 | -1.65 | | | Subash, Lasitha | | | 1880 | SRI | 0.50 | 1 | 0.35 | 15 | 5.25 | | | Premachandra, D. | | | 1833 | SRI | 0.50 | 1 | 0.31 | 15 | 4.65 | |
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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