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Individual Calculations July 2010 |
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| Duvall, Ian Total change: -7.65 | |   |
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| Four Nations Chess League (4NCL) | Various | ENG | 2009-10-24 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2059 | 2062 | 0.50 | 2 | -0.51 | 15 | -7.65 | |
|  Smith, Ivor B N | | | 2145 | ENG | 0.50 | 1 | 0.11 | 15 | 1.65 | |  Webb, Matthew D | | | 1973 | ENG | 0.00 | 1 | -0.62 | 15 | -9.30 | |
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) | | |
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