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Individual Calculations September 2013 |
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| Portman, Carl Total change: 1.20 | |   |
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| British Championship 5-day Open AM Week 2 | Torquay | ENG | 2013-08-05 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1991 | 1974 | 1.00 | 2 | 0.04 | 30 | 1.20 | |
|  Simons, Martin J | | | 2118 | ENG | 0.50 | 1 | 0.19 | 30 | 5.70 | |  Grant, David | | | 1863 | SCO | 0.50 | 1 | -0.15 | 30 | -4.50 | |
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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