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Individual Calculations May 2012 |
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| Ranathunga, Vidusha Hirushan Total change: -10.80 | |   |
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| Sri Lanka Major Division Chess Championship 2012 Colombo | Colombo | SRI | 2012-02-25 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1794 | 1572 | 1.00 | 4 | 0.10 | 30 | 3.00 | |
|  Fernando, J M M P | | | 1853 | SRI | 0.00 | 1 | -0.16 | 30 | -4.80 | | | Rathnasekara, Abimanyu | | | 1764 | SRI | 0.50 | 1 | 0.25 | 30 | 7.50 | |  Gunaratne, Mojitha Sathsara | | | 1686 | SRI | 0.50 | 1 | 0.16 | 30 | 4.80 | | | Alahakoon, T N | | | 1871 | SRI | 0.00 | 1 | -0.15 | 30 | -4.50 | |
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) | | | | National Youth Chess Championship 2012 Under 14 Open | Colombo | SRI | 2012-04-06 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1578 | 1572 | 1.50 | 4 | -0.46 | 30 | -13.80 | |
| | Chathuranga, Sachintha | | | 1744 | SRI | 0.50 | 1 | 0.23 | 30 | 6.90 | | | Naotunna, Dineth Nimnaka | | | 1647 | SRI | 0.50 | 1 | 0.10 | 30 | 3.00 | | | Welihinda, Ravindu Hansika | | | 1551 | SRI | 0.50 | 1 | -0.03 | 30 | -0.90 | | | Weerasinghe, Kavindu Nirmana | | | 1369 | SRI | 0.00 | 1 | -0.76 | 30 | -22.80 | |
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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