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Individual Calculations September 2009 |
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| Wu, Darren P Total change: -29.75 | |   |
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| 49th Annual Pacific Southwest Open | Los Angeles, California | USA | 2009-07-03 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2079 | 2062 | 0.50 | 1 | 0.02 | 25 | 0.50 | |
|  Yee, Michael Anthony | | | 2079 | USA | 0.50 | 1 | 0.02 | 25 | 0.50 | |
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) | | | | 110th Annual US Open | Indianapolis, Indiana | USA | 2009-08-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2124 | 2062 | 1.00 | 5 | -1.21 | 25 | -30.25 | |
|  Sevillano, Enrico | m | | 2462 * | USA | 0.00 | 1 | -0.08 | 25 | -2.00 | | | Chiang, Michael | | | 1927 | USA | 0.50 | 1 | -0.18 | 25 | -4.50 | | | Rogers, Bradley K | | | 2101 | USA | 0.00 | 1 | -0.45 | 25 | -11.25 | | | Nahutin, Yevgeni | | | 2041 | CAN | 0.50 | 1 | -0.03 | 25 | -0.75 | | | Barsky, Sam | | | 2087 | USA | 0.00 | 1 | -0.47 | 25 | -11.75 | | | * 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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