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Individual Calculations April 2009 |
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| Lu, Edward J Total change: 2.25 | |   |
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| 39th Annual World Amateur Team & US Team East | Parsippany, New Jersey | USA | 2009-02-14 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2373 | 2207 | 1.00 | 3 | 0.15 | 15 | 2.25 | |
|  Lenderman, Alex | m | | 2444 | USA | 1.00 | 1 | 0.80 | 15 | 12.00 | |  Arnold, Marc Tyler | f | | 2396 | USA | 0.00 | 1 | -0.25 | 15 | -3.75 | | | Riordan, Charles R | f | | 2280 | USA | 0.00 | 1 | -0.40 | 15 | -6.00 | |
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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