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Individual Calculations January 2013 |
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| Purvis, Anna Total change: 6.60 | |   |
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| London Chess Classic 2012: Weekend B U1800 | London | ENG | 2012-12-07 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1676 | 1491 | 1.00 | 3 | 0.22 | 30 | 6.60 | |
|  Fowler, David J | | | 1678 | ENG | 0.00 | 1 | -0.26 | 30 | -7.80 | |  Probert, Malcolm | | | 1710 | WLS | 1.00 | 1 | 0.78 | 30 | 23.40 | | | Banda, Graham | | | 1641 | ZAM | 0.00 | 1 | -0.30 | 30 | -9.00 | |
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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