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Individual Calculations September 2009 |
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| Young, Steven D Total change: -8.75 | |   |
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| Houston Open | Houston, Texas | USA | 2009-07-24 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2121 | 1886 | 0.00 | 1 | -0.21 | 25 | -5.25 | |
|  Sawyer, Bradley J | | | 2121 | USA | 0.00 | 1 | -0.21 | 25 | -5.25 | |
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) | | | | 110th Annual US Open | Indianapolis, Indiana | USA | 2009-08-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2144 | 1886 | 0.50 | 3 | -0.14 | 25 | -3.50 | |
|  Kaufman, Lawrence | g | | 2286 * | USA | 0.00 | 1 | -0.08 | 25 | -2.00 | | | Chen, Howard | | | 2201 | USA | 0.00 | 1 | -0.14 | 25 | -3.50 | | | Amarasinghe, Prashantha | | | 1946 | SRI | 0.50 | 1 | 0.08 | 25 | 2.00 | | | * Rating difference of more than 400. Please read more at FIDE Handbook |
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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