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Individual Calculations March 2013 |
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| Jones, Iolo C Total change: -1.50 | |   |
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| Welsh Chess Premier League Round 4 | various | WLS | 2013-02-16 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2159 | 2233 | 0.50 | 1 | -0.10 | 15 | -1.50 | |
|  Morris, Charles F | | | 2159 | WLS | 0.50 | 1 | -0.10 | 15 | -1.50 | |
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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