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Individual Calculations March 2011 |
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| Sun, Abe Total change: -5.50 | |   |
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| 2010 Pan American Open | Milwaukee, Wisconsin | USA | 2010-12-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2053 | 1653 | 0.00 | 1 | -0.08 | 25 | -2.00 | |
|  Hubbard, Andrew D | f | | 2053 * | USA | 0.00 | 1 | -0.08 | 25 | -2.00 | | | * 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) | | | | 1st North American Amateur Open | Skokie, Illinois | USA | 2011-02-04 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1912 | 1659 | 0.50 | 3 | -0.14 | 25 | -3.50 | |
| | Flaga, Krzysztof | | | 2048 | USA | 0.50 | 1 | 0.41 | 25 | 10.25 | | | Schmakel, Sam A | | | 1945 | USA | 0.00 | 1 | -0.16 | 25 | -4.00 | |  Cohen, Fredric S | | | 1742 | USA | 0.00 | 1 | -0.39 | 25 | -9.75 | |
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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