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Individual Calculations March 2015 |
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| Jones, Iolo C Total change: 5.00 | |   |
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| 44th Dyfed Chess Congress | Goodwick | WLS | 2015-02-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2107 | 2169 | 2.50 | 4 | 0.25 | 20 | 5.00 | |
|  Buttell, David | | | 1793 | WLS | 1.00 | 1 | 0.09 | 20 | 1.80 | | | Williams, A. Howard | f | | 2305 | WLS | 0.50 | 1 | 0.18 | 20 | 3.60 | | | Strugnell, Carl | f | | 2245 | FRA | 0.00 | 1 | -0.40 | 20 | -8.00 | |  Heap, Gerry | | | 2085 | WLS | 1.00 | 1 | 0.38 | 20 | 7.60 | |
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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