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Individual Calculations May 2013 |
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| Gurczak, John A Total change: -7.50 | |   |
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| 43rd Annual World Amateur Team & US Team East | Parsippany, New Jersey | USA | 2013-02-16 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2104 | 2102 | 1.00 | 3 | -0.50 | 15 | -7.50 | |
|  Xu, Grant Y | | | 2119 | USA | 0.00 | 1 | -0.48 | 15 | -7.20 | |  Luchan, Jason G | | | 2091 | USA | 0.50 | 1 | -0.02 | 15 | -0.30 | | | West, James R | | | 2102 | USA | 0.50 | 1 | 0.00 | 15 | 0.00 | |
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) | | |
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