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Individual Calculations September 2009 |
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| Purton, Ben J Total change: 13.20 | |   |
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| Big Slick London Open | Purley | ENG | 2009-06-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2203 | 2110 | 2.00 | 3 | 0.88 | 15 | 13.20 | |
|  Bonafont, Philip R | | | 2097 | ENG | 1.00 | 1 | 0.48 | 15 | 7.20 | |  Cooley, Chris M | | | 2265 | ENG | 1.00 | 1 | 0.71 | 15 | 10.65 | | | Harakis, Alexis M | | | 2248 | ENG | 0.00 | 1 | -0.31 | 15 | -4.65 | |
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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