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Individual Calculations April 2009 |
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| Wijekoon, Chandana Total change: 40.00 | |   |
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| The Inaugural Royal Challenge International Chess Championship 2009 | Colombo | SRI | 2009-01-10 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2020 | 1925 | 3.50 | 5 | 1.60 | 25 | 40.00 | |
|  Lasitha, Subash | | | 1888 | SRI | 1.00 | 1 | 0.45 | 25 | 11.25 | |  Dissanayake, R.s. | | | 2045 | SRI | 0.50 | 1 | 0.16 | 25 | 4.00 | | | De Silva, Rasheen | | | 1951 | SRI | 0.50 | 1 | 0.04 | 25 | 1.00 | | | Perera, L.n. | | | 2008 | SRI | 1.00 | 1 | 0.61 | 25 | 15.25 | | | Russell, M.k.a. | | | 2209 | SRI | 0.50 | 1 | 0.34 | 25 | 8.50 | |
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) | | |
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