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Individual Calculations January 2012 |
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| Thomas, Mark Total change: -49.20 | |   |
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| Welsh Chess Premier League Round 1-3 | Various | WLS | 2011-10-08 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1932 | 1968 | 0.00 | 3 | -1.64 | 30 | -49.20 | |
|  Gibbons, Andrew | | | 1835 | WLS | 0.00 | 1 | -0.68 | 30 | -20.40 | | | Waterfield, John W | | | 2008 | ENG | 0.00 | 1 | -0.44 | 30 | -13.20 | |  Cunliffe, Sd | | | 1952 | WLS | 0.00 | 1 | -0.52 | 30 | -15.60 | |
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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