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Individual Calculations September 2009 |
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| Weiss, Allen J Total change: -4.75 | |   |
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| 2nd New York International | New York, NY | USA | 2009-06-19 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2220 | 2160 | 4.00 | 9 | 0.22 | 25 | 5.50 | |
|  Arnold, Mark T | m | | 2408 | USA | 0.00 | 1 | -0.19 | 25 | -4.75 | |  Goikhman, Valentin | | | 2209 | ISR | 0.50 | 1 | 0.07 | 25 | 1.75 | | | Kaufman, Raymond | m | | 2276 | USA | 0.50 | 1 | 0.16 | 25 | 4.00 | | | Getz, Alec | f | | 2229 | USA | 0.50 | 1 | 0.10 | 25 | 2.50 | | | Yeager, Daniel A | f | | 2372 | USA | 0.00 | 1 | -0.23 | 25 | -5.75 | | | Frumkin, Edward A | | | 2034 | USA | 1.00 | 1 | 0.33 | 25 | 8.25 | | | Yang, Darwin | f | | 2231 | USA | 0.50 | 1 | 0.10 | 25 | 2.50 | | | Farber, Nelson M | | | 2001 | USA | 1.00 | 1 | 0.29 | 25 | 7.25 | | | Maltese, Adam S | | | 2222 | USA | 0.00 | 1 | -0.41 | 25 | -10.25 | |
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 |
| 2056 | 2160 | 1.50 | 3 | -0.41 | 25 | -10.25 | |
| | Friedman, David M | | | 1948 | USA | 1.00 | 1 | 0.23 | 25 | 5.75 | | | Wasiolek, Rory E | | | 2098 | USA | 0.00 | 1 | -0.59 | 25 | -14.75 | | | Luchan, Jason G | | | 2123 | USA | 0.50 | 1 | -0.05 | 25 | -1.25 | |
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) | | |
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