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Individual Calculations April 2009 |
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| Le, Cau D Total change: -11.50 | |   |
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| 18th Annual North American Open | Las vegas, Nevada | USA | 2008-12-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2422 | 2081 | 0.00 | 1 | -0.12 | 25 | -3.00 | |
|  Pruess, David | m | | 2422 | USA | 0.00 | 1 | -0.12 | 25 | -3.00 | |
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) | | | | 26th Annual U.S Amateur Team West | Woodland Hills, CA | USA | 2009-02-14 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2218 | 2081 | 1.00 | 4 | -0.34 | 25 | -8.50 | |
| | Lawrence, Danyul | | | 2067 | USA | 0.00 | 1 | -0.52 | 25 | -13.00 | |  Tanaka, Christian | | | 2180 | USA | 0.50 | 1 | 0.14 | 25 | 3.50 | | | Matikozyan, Andranik | m | | 2431 | ARM | 0.00 | 1 | -0.11 | 25 | -2.75 | | | Zimbeck, David | | | 2192 | USA | 0.50 | 1 | 0.15 | 25 | 3.75 | |
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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