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Individual Calculations March 2010 |
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| Iwamoto, Takashi Total change: -1.05 | |   |
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| 19th Annual North American Open | Las Vegas, Nevada | USA | 2009-12-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2373 | 2252 | 1.00 | 4 | -0.49 | 15 | -7.35 | |
|  Akobian, Varuzhan | g | | 2624 | USA | 0.00 | 1 | -0.10 | 15 | -1.50 | |  Akopian, Robert | | | 2105 | USA | 0.50 | 1 | -0.20 | 15 | -3.00 | | | Belliard, Luis M | | | 2246 | DOM | 0.50 | 1 | -0.01 | 15 | -0.15 | | | Kidambi, Sundarajan | g | | 2516 | IND | 0.00 | 1 | -0.18 | 15 | -2.70 | |
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) | | | | 27th Annual US Amateur Team West | Woodland Hills, California | USA | 2010-02-13 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2080 | 2263 | 4.00 | 5 | 0.42 | 15 | 6.30 | |
| | Gunawan, Cheston | | | 1863 * | USA | 0.50 | 1 | -0.42 | 15 | -6.30 | | | Dellaca, Roger | | | 2008 | USA | 1.00 | 1 | 0.19 | 15 | 2.85 | | | Banawa, Jouaquin B | | | 2288 | PHI | 0.50 | 1 | 0.03 | 15 | 0.45 | | | Tanaka, Christian | | | 2134 | USA | 1.00 | 1 | 0.33 | 15 | 4.95 | | | Williams, John R | | | 2109 | USA | 1.00 | 1 | 0.29 | 15 | 4.35 | | | * 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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