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Individual Calculations May 2012 |
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| Purcell, Brendan T Total change: 25.50 | |   |
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| 18th Metropolitan Chess FIDE Qualifier | Los Angeles, California USA | USA | 2012-03-30 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1924 | 2015 | 3.00 | 4 | 0.51 | 15 | 7.65 | |
|  Mousseri, Daniel Y | | | 2013 | USA | 0.00 | 1 | -0.50 | 15 | -7.50 | |  Kim, Willis A | | | 1914 | USA | 1.00 | 1 | 0.36 | 15 | 5.40 | | | Sobel, Simone | | | 1844 | USA | 1.00 | 1 | 0.27 | 15 | 4.05 | | | Quercia, Dylan | | | 1924 | USA | 1.00 | 1 | 0.38 | 15 | 5.70 | |
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) | | | | 18th Metropolitan Chess FIDE Invitational | Los Angeles, California USA | USA | 2012-04-11 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2326 | 2015 | 2.50 | 9 | 1.19 | 15 | 17.85 | |
| | Kameswaran, Visweswaran | f | | 2281 | IND | 0.00 | 1 | -0.18 | 15 | -2.70 | | | Amanov, Zhanibek | m | | 2404 | KAZ | 0.50 | 1 | 0.41 | 15 | 6.15 | | | Duckworth, William | f | | 2317 | USA | 0.00 | 1 | -0.15 | 15 | -2.25 | | | Liou, Yian | | | 2293 | USA | 0.50 | 1 | 0.33 | 15 | 4.95 | | | Yankovsky, Roman | m | | 2415 * | RUS | 0.00 | 1 | -0.08 | 15 | -1.20 | | | Kavutskiy, Konstan | f | | 2302 | USA | 0.50 | 1 | 0.34 | 15 | 5.10 | | | Remlinger, Larry A | m | | 2399 | USA | 0.00 | 1 | -0.09 | 15 | -1.35 | | | Manukyan, Garush | | | 2279 | ARM | 0.00 | 1 | -0.18 | 15 | -2.70 | | | Akopyan, Harutyun | f | | 2243 | USA | 1.00 | 1 | 0.79 | 15 | 11.85 | | | * 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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