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Individual Calculations July 2011 |
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| Perrett, David C Total change: 6.90 | |   |
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| 4NCL 2011 | various | ENG | 2010-11-06 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1954 | 1961 | 4.00 | 7 | 0.46 | 15 | 6.90 | |
|  Peck, Windsor W A | | | 1831 | ENG | 1.00 | 1 | 0.32 | 15 | 4.80 | |  Fryer, David W | | | 2056 | ENG | 0.00 | 1 | -0.37 | 15 | -5.55 | | | Sirisena, Chantal N | | | 1961 | ENG | 1.00 | 1 | 0.50 | 15 | 7.50 | | | Waddingham, Paul J | | | 1686 | ENG | 1.00 | 1 | 0.17 | 15 | 2.55 | | | Hackett, Dave G | | | 2138 | ENG | 1.00 | 1 | 0.73 | 15 | 10.95 | | | Hilton, Steve H | | | 1919 | SCO | 0.00 | 1 | -0.56 | 15 | -8.40 | | | Tasker, Michael W | | | 2085 | ENG | 0.00 | 1 | -0.33 | 15 | -4.95 | |
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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