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Individual Calculations April 2009 |
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| Ketalawala, J.k.c. Total change: -106.00 | |   |
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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 |
| 1857 | 2033 | 0.00 | 3 | -2.18 | 25 | -54.50 | |
|  Pinto, Semuthu | | | 1845 | SRI | 0.00 | 1 | -0.74 | 25 | -18.50 | |  Egodage, Keshan | | | 1787 | SRI | 0.00 | 1 | -0.81 | 25 | -20.25 | | | Kuruwitage, Yasas Kalana | | | 1938 | SRI | 0.00 | 1 | -0.63 | 25 | -15.75 | |
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) | | | | 2nd Colombo Chess Festival '09 | Colombo | SRI | 2009-02-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1828 | 2033 | 2.50 | 6 | -1.92 | 25 | -48.00 | |
| | Rohit, V. Lune | | | 1735 | IND | 1.00 | 1 | 0.15 | 25 | 3.75 | | | Russell, M.k.a. | | | 2209 | SRI | 0.00 | 1 | -0.27 | 25 | -6.75 | | | Choudhary, Jitendra | | | 1798 | IND | 0.00 | 1 | -0.79 | 25 | -19.75 | | | Karunanayake, Chathuri | | | 1683 | SRI | 0.50 | 1 | -0.39 | 25 | -9.75 | | | Seneviratne, Shehan | | | 1683 | SRI | 1.00 | 1 | 0.11 | 25 | 2.75 | | | Munasinghe, Lahiru | | | 1860 | SRI | 0.00 | 1 | -0.73 | 25 | -18.25 | |
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) | | | | Sri Lanka Open International Rating Chess Tournament 2009 | Kandy | SRI | 2009-03-06 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2014 | 2033 | 2.50 | 5 | -0.14 | 25 | -3.50 | |
| | Narayanan, Srinath | m | | 2383 | IND | 0.00 | 1 | -0.11 | 25 | -2.75 | | | Jayawardena, Mihiranga | | | 1921 | SRI | 0.50 | 1 | -0.15 | 25 | -3.75 | | | Premanath, Dinushki | | | 1703 | SRI | 1.00 | 1 | 0.12 | 25 | 3.00 | | | Weerawardena, Romesh | | | 2127 | SRI | 0.50 | 1 | 0.13 | 25 | 3.25 | | | Hapuarachchi, Lahiru | | | 1937 | SRI | 0.50 | 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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