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Individual Calculations July 2009 |
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| Kerman, David J Total change: -4.20 | |   |
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| 2009 National Open | Las Vegas, Nevada | USA | 2009-06-05 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2196 | 2155 | 1.50 | 4 | -0.28 | 15 | -4.20 | |
|  Friedel, Joshua E | g | | 2505 | USA | 0.00 | 1 | -0.11 | 15 | -1.65 | |  Soikkeli, Raino | | | 1805 | FIN | 1.00 | 1 | 0.11 | 15 | 1.65 | | | Yang, Darwin | f | | 2231 | USA | 0.50 | 1 | 0.10 | 15 | 1.50 | | | Johansson, Carl F | | | 2241 | SWE | 0.00 | 1 | -0.38 | 15 | -5.70 | |
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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