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Individual Calculations July 2009 |
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| Kodithuwakku, Gihan Total change: 42.00 | |   |
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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 |
| 1873 | 1527 | 2.00 | 4 | 1.55 | 25 | 38.75 | |
|  Munasinghe, Lahiru | | | 1877 | SRI | 1.00 | 1 | 0.89 | 25 | 22.25 | |  De Silva, Rasheen | | | 1877 | SRI | 0.00 | 1 | -0.11 | 25 | -2.75 | | | Kavinda, Akila | | | 1877 | SRI | 0.50 | 1 | 0.39 | 25 | 9.75 | | | Ranasinghe, C.n. | | | 1860 | SRI | 0.50 | 1 | 0.38 | 25 | 9.50 | |
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) | | | | Colombo Major Chess Championship 2009 | Colombo | SRI | 2009-04-24 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1858 | 1527 | 0.50 | 3 | 0.13 | 25 | 3.25 | |
| | Peiris, T.s.s. | | | 1877 | SRI | 0.00 | 1 | -0.11 | 25 | -2.75 | | | Munasinghe, Lahiru | | | 1877 | SRI | 0.50 | 1 | 0.39 | 25 | 9.75 | | | Perera, Jayasanka | | | 1820 | SRI | 0.00 | 1 | -0.15 | 25 | -3.75 | |
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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