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Individual Calculations March 2015 |
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| Waterfield, John W Total change: -18.80 | |   |
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| 44th Dyfed Chess Congress | Goodwick | WLS | 2015-02-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1940 | 1923 | 1.00 | 4 | -0.94 | 20 | -18.80 | |
|  Powell, Lloyd | | | 2128 | WLS | 0.50 | 1 | 0.26 | 20 | 5.20 | | | Strugnell, Carl | f | | 2245 | FRA | 0.00 | 1 | -0.13 | 20 | -2.60 | |  Van Kemenade, Julie | | | 1729 | WLS | 0.00 | 1 | -0.75 | 20 | -15.00 | | | Orton, Paul | | | 1657 | WLS | 0.50 | 1 | -0.32 | 20 | -6.40 | |
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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