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Individual Calculations September 2009 |
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| Zierk, Steven C Total change: -2.85 | |   |
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| 37th Annual World Open - Under 2400 Section | Philadelphia, Pennsylvania | USA | 2009-06-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2155 | 2296 | 6.00 | 9 | -0.19 | 15 | -2.85 | |
|  Fink Jr, Stanley W | | | 2148 | USA | 0.50 | 1 | -0.20 | 15 | -3.00 | |  Strenzwilk, Denis | | | 2079 | USA | 1.00 | 1 | 0.22 | 15 | 3.30 | | | Ruiz Gonzalez, Gui | f | | 2130 | MEX | 1.00 | 1 | 0.28 | 15 | 4.20 | | | Hughes, Tyler B | | | 2230 | USA | 0.00 | 1 | -0.59 | 15 | -8.85 | | | Karklins, Andrew | f | | 2232 | USA | 1.00 | 1 | 0.41 | 15 | 6.15 | | | Kudryavtsev, Vadim | | | 2165 | RUS | 0.50 | 1 | -0.18 | 15 | -2.70 | | | Adelberg, David | | | 2158 | USA | 0.50 | 1 | -0.19 | 15 | -2.85 | | | Pressman, Leif A | | | 2057 | USA | 0.50 | 1 | -0.30 | 15 | -4.50 | | | Wall, Brian D | | | 2193 | USA | 1.00 | 1 | 0.36 | 15 | 5.40 | |
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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