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Individual Calculations January 2009 |
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| Williams, Ron Total change: -0.50 | |   |
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| Gwent Championship | Pontypool | WLS | 2008-09-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2033 | 1945 | 1.50 | 4 | -0.02 | 25 | -0.50 | |
|  Batey, Richard | | | 2060 | WLS | 1.00 | 1 | 0.66 | 25 | 16.50 | |  Waterfield, John W | | | 2035 | ENG | 0.50 | 1 | 0.12 | 25 | 3.00 | | | Gilbert, Jonathan A. | | | 2069 | WLS | 0.00 | 1 | -0.33 | 25 | -8.25 | | | Turner, Joseph David | | | 1966 | WLS | 0.00 | 1 | -0.47 | 25 | -11.75 | |
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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