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Individual Calculations May 2011 |
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| Perera, Milindu Total change: -13.00 | |   |
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| Sri Lanka Open International Rating Tournament 2011 | Colombo | SRI | 2011-03-02 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1572 | 1774 | 1.00 | 2 | -0.52 | 25 | -13.00 | |
|  Perera, Piruna Kamala | | | 1592 | SRI | 0.50 | 1 | -0.24 | 25 | -6.00 | | | Perera, B S | | | 1552 | SRI | 0.50 | 1 | -0.28 | 25 | -7.00 | |
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) | | |
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