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Individual Calculations June 2013 |
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| Portman, Carl Total change: 31.50 | |   |
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| 4NCL 2012-13 | Various | ENG | 2012-11-03 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1953 | 1942 | 2.50 | 3 | 1.05 | 30 | 31.50 | |
|  Bullen, Alex | | | 1824 | WLS | 1.00 | 1 | 0.34 | 30 | 10.20 | |  Tart, Peter K | | | 1985 | ENG | 0.50 | 1 | 0.06 | 30 | 1.80 | | | Cairns, Stephen | | | 2051 | ENG | 1.00 | 1 | 0.65 | 30 | 19.50 | |
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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