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Individual Calculations November 2009 |
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| Markzon, Gregory Total change: 5.55 | |   |
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| 2009 US Senior Open | Tulsa, Oklahoma | USA | 2009-09-05 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2327 | 2212 | 1.50 | 3 | 0.37 | 15 | 5.55 | |
|  Parreiras-Horta, Cesar | | | 2205 | BRA | 1.00 | 1 | 0.49 | 15 | 7.35 | | | Treger, Yefim | | | 2198 | USA | 0.50 | 1 | -0.02 | 15 | -0.30 | |  Christiansen, Larry | g | | 2578 | USA | 0.00 | 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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