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Individual Calculations April 2009 |
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| Pinto, Semuthu Total change: 42.45 | |   |
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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 |
| 2041 | 1845 | 3.00 | 6 | 1.52 | 25 | 38.00 | |
|  Ketalawala, J.k.c. | | | 2033 | SRI | 1.00 | 1 | 0.74 | 25 | 18.50 | |  Kurukulasuriya, Prasanna | | | 2092 | SRI | 1.00 | 1 | 0.81 | 25 | 20.25 | | | Wijesuriya, G.luxman | | | 2065 | SRI | 0.00 | 1 | -0.22 | 25 | -5.50 | | | Subhani, D.ashraf | | | 1994 | IND | 0.50 | 1 | 0.20 | 25 | 5.00 | | | De Silva, Osheen | | | 2016 | SRI | 0.50 | 1 | 0.23 | 25 | 5.75 | | | Dissanayake, R.s. | | | 2045 | SRI | 0.00 | 1 | -0.24 | 25 | -6.00 | |
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) | | | | 2nd Colombo Chess Festival '09 | Colombo | SRI | 2009-02-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1951 | 1845 | 2.00 | 5 | 0.19 | 25 | 4.75 | |
| | Athavan, R.k. | | | 1947 | SRI | 0.50 | 1 | 0.14 | 25 | 3.50 | | | Fernando, J.m.m.p. | | | 1966 | SRI | 1.00 | 1 | 0.66 | 25 | 16.50 | | | Kurukulasuriya, Prasanna | | | 2092 | SRI | 0.00 | 1 | -0.19 | 25 | -4.75 | | | Alahakoon, Isuru | | | 1977 | SRI | 0.00 | 1 | -0.32 | 25 | -8.00 | | | Lamawansa, Yasas | | | 1772 | SRI | 0.50 | 1 | -0.10 | 25 | -2.50 | |
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) | | | NOTE: K factor changed | | Sri Lanka Open International Rating Chess Tournament 2009 | Kandy | SRI | 2009-03-06 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2116 | 1845 | 0.50 | 3 | -0.02 | 15 | -0.30 | |
| | Weerawardena, Romesh | | | 2127 | SRI | 0.00 | 1 | -0.16 | 15 | -2.40 | | | Manish, Hamal | f | | 2089 | NEP | 0.00 | 1 | -0.20 | 15 | -3.00 | | | Peiris, T.g.m. | | | 2133 | SRI | 0.50 | 1 | 0.34 | 15 | 5.10 | |
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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