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Individual Calculations April 2009 |
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| Arnold, Marc Tyler Total change: 11.55 | |   |
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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 |
| 2143 | 2396 | 4.00 | 4 | 0.77 | 15 | 11.55 | |
|  Sagalchik, Olga | | wf | 2126 | USA | 1.00 | 1 | 0.17 | 15 | 2.55 | | | West, James R | | | 2193 | USA | 1.00 | 1 | 0.24 | 15 | 3.60 | |  Lu, Edward J | | | 2207 | USA | 1.00 | 1 | 0.25 | 15 | 3.75 | | | Meredith, Matthew | | | 2046 | USA | 1.00 | 1 | 0.11 | 15 | 1.65 | |
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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