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Individual Calculations April 2009 |
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| Prasanna, Krishna B. Total change: 37.80 | |   |
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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 |
| 2016 | 1812 | 4.00 | 6 | 2.52 | 15 | 37.80 | |
|  De Silva, Osheen | | | 2016 | SRI | 1.00 | 1 | 0.76 | 15 | 11.40 | | | Kottahachchy, K.o.v. | | | 2034 | SRI | 0.50 | 1 | 0.28 | 15 | 4.20 | |  Perera, L.n. | | | 2008 | SRI | 1.00 | 1 | 0.75 | 15 | 11.25 | | | Russell, M.k.a. | | | 2162 | SRI | 0.00 | 1 | -0.11 | 15 | -1.65 | | | De Silva, Rasheen | | | 1951 | SRI | 0.50 | 1 | 0.19 | 15 | 2.85 | | | Amarasinghe, A.a.c.b.j.b. | | | 1925 | SRI | 1.00 | 1 | 0.65 | 15 | 9.75 | |
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) | | |
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