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Individual Calculations April 2009 |
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| Meredith, Matthew D Total change: -13.05 | |   |
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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 |
| 2220 | 2033 | 1.00 | 4 | -0.17 | 15 | -2.55 | |
|  Ventura, Christoph | | | 1860 | USA | 0.50 | 1 | -0.23 | 15 | -3.45 | |  Arnold, Marc Tyler | f | | 2383 | USA | 0.00 | 1 | -0.11 | 15 | -1.65 | | | Stoyko, Stephen E | f | | 2254 | USA | 0.50 | 1 | 0.28 | 15 | 4.20 | | | Kudrin, Sergey | g | | 2383 | USA | 0.00 | 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) | | | | 18th Annual Eastern Class Championships | Sturbridge, Massachusetts | USA | 2009-03-06 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2146 | 2033 | 0.00 | 2 | -0.70 | 15 | -10.50 | |
| | Vertkin, Sergey | | | 2211 | RUS | 0.00 | 1 | -0.27 | 15 | -4.05 | | | Harris, David | | | 2081 | USA | 0.00 | 1 | -0.43 | 15 | -6.45 | |
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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