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Individual Calculations May 2012 |
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| Siriwardana, Sheranga Total change: 14.10 | |   |
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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 |
| 1745 | 1514 | 1.50 | 4 | 0.65 | 30 | 19.50 | |
|  Kumara, Sisira | | | 1769 | SRI | 0.00 | 1 | -0.19 | 30 | -5.70 | | | Rathnayake, Ganesh | | | 1718 | SRI | 1.00 | 1 | 0.76 | 30 | 22.80 | |  Doluweera, Dinul Thisura | | | 1748 | SRI | 0.50 | 1 | 0.29 | 30 | 8.70 | | | Doluweera, Minul Sanjula | | | 1744 | SRI | 0.00 | 1 | -0.21 | 30 | -6.30 | |
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 16 Open | Colombo | SRI | 2012-04-06 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1733 | 1514 | 0.50 | 3 | -0.18 | 30 | -5.40 | |
| | Sandamith, W M | | | 1781 | SRI | 0.00 | 1 | -0.18 | 30 | -5.40 | | | Ranasinghe, P M | | | 1702 | SRI | 0.50 | 1 | 0.24 | 30 | 7.20 | | | Kumara, T G V S H | | | 1717 | SRI | 0.00 | 1 | -0.24 | 30 | -7.20 | |
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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